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Philips TEA1097 Speech loudspeaker amplifier IC with auxiliary inputs/outputs analog multiplexer handbook

1. lt Cc Ef o Or OXNY 2 Ou OXI I OL o du l SOIW Nn HD son o SOIN el LINN ap 2 49 0 U09 WO1 5 Riet VJ OEL O hase sav ey P SS i SE mzz Ki Gd op a at iT alo D s s eu 91 Ho f Q 6L ee oz VY Z6 E ap Cc Sey du oL e U 26E owe d SC gt Pio gise Z T u how R meo oo Hedy Aiddns 9349 ad 1Sy Gei eg Au ozz eg z edo T EI 28 1999 Apr 08 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with ee TEA1097 auxiliary inputs outputs and analog multiplexer PACKAGE OUTLINES VSO40 plastic very small outline package 40 leads SOT158 1 Si p detail X 1 I scale DIMENSIONS inch dimensions are derived from the original mm dimensions A ml ep UNIT nax A be e D E He 0 3 0 22 15 6 7 6 0 1 h 0 14 15 2 7 5 0 0087 0 61 0 30 0 0055 0 60 0 29 mm 2 70 inches 0 11 Notes 1 Plastic or metal protrusions of 0 4 mm maximum per side are not included 2 Plastic interlead protrusions of 0 25 mm maximum per side are not included OUTLINE REFERENCES EUROPEAN VERSION JEDEC EIAJ PROJECTION SOT158 1 E ISSUE DATE 1999 Apr 08 29 Philips Semiconductors Product specifica
2. Reatx 30 1 KQ gain variation with frequency referenced to 1 kHz noise output voltage at pin TXOUT pin TXIN is shorted through 200 Q in series with 10 uF to GNDTX RMS value Vue TXOUT rms psophometrically weighted p53 curve gain reduction if not activated Loudspeaker amplifier pins HFRX LSAO GALS voltage gain from pin HFRX to LSAO Gv HFRX LSAO and VOL see note 1 VHFRX 20 mV RMS Hoas 255 kQ voltage gain adjustment with Dons gain variation with temperature referenced to 25 C voltage gain variation related to ARvot 1 9 KQ V HERX rms max Maximum input voltage at pin HFRX RMS value line 70 mA Hoas 33 kQ for 2 THD in the input stage Vno LSAO rms noise output voltage at pin psophometrically 79 dBVp LSAO pin HFRX is open circuit weighted p53 curve RMS value VLSAO rms output voltage RMS value lee 0 mA Ipp 1 mA without external supply on pin line 18 MA D 0 9 V GE liine 30 mA 1 2 V line gt 50 mA 1 6 V 1999 Apr 08 25 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with ane l TEA1097 auxiliary inputs outputs and analog multiplexer SYMBOL PARAMETER CONDITIONS ILSAO max maximum output current at pin external supply on ESI LSAO peak value Dynamic limiter pins LSAO and DLC see note 1 attack time when Vurps jumps from 20 mV to 20 mV 10 dB when Vpp jumps below
3. document order number 9398 652 90011 There is no soldering method that is ideal for all surface mount IC packages Wave soldering is not always suitable for surface mount ICs or for printed circuit boards with high population densities In these situations reflow soldering is often used Reflow soldering Reflow soldering requires solder paste a suspension of fine solder particles flux and binding agent to be applied to the printed circuit board by screen printing stencilling or pressure syringe dispensing before package placement Several methods exist for reflowing for example infrared convection heating in a conveyor type oven Throughput times preheating soldering and cooling vary between 100 and 200 seconds depending on heating method Typical reflow peak temperatures range from 215 to 250 C The top surface temperature of the packages should preferable be kept below 230 C Wave soldering Conventional single wave soldering is not recommended for surface mount devices SMDs or printed circuit boards with a high component density as solder bridging and non wetting can present major problems To overcome these problems the double wave soldering method was specifically developed 1999 Apr 08 31 If wave soldering is used the following conditions must be observed for optimal results e Use a double wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar
4. mA 60 mV mV mA stabilized voltage variation with Tamb 25 to 75 C temperature referenced to 25 C regulated voltage variation with Tamp 25 to 75 C 30 temperature referenced to 25 C current available on pin Vp speech mode digital handsfree mode mA HFC HIGH line voltage line 1 MA liine 4mA liine 15 mA liine 130 mA EXTERNAL SUPPLY PIN ESI Vesi external voltage supply allowed on pin ESI voltage on pin ESI when les 140 mA except in supplied by a current source power down mode lis input current on pin ESI Veg 3 5 V lESI ext ee aoe supply allowed on pin 1999 Apr 08 19 Philips Semiconductors Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer SYMBOL PARAMETER CONDITIONS Product specification TEA1097 SUPPLY FOR PERIPHERALS PIN Vpp Vpp regulated supply voltage on Vpp Vss gt 3 35 V 0 25 V otherwise regulated voltage variation with Tamb 25 to 75 C temperature referenced to 25 C Veg gt 3 35 V 0 25 V typ current consumption on Vpp in trickle mode line 0 mA Von 1 5V Vee discharging supply voltage for a microphone current available on MICS current consumption on Ve during power down phase RINGER MODE PINs PD AUXC HFRX AND LSAO input current on pin ESI PD LOW AUXC HIGH Ves 3 5 V GyHFRX
5. 1 Block diagram 1999 Apr 08 4 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer TEA1097 PINNING SYMBOL DESCRIPTION logic input active LOW logic input active LOW logic input auxiliary receive amplifier input auxiliary transmit amplifier input auxiliary amplifier output 8 to 10 15 and 26 2 to 7 22 24 and 25 receive input for loudspeaker amplifier not connected 11 8 dynamic limiter capacitor for the loudspeaker amplifier external supply input stabilized supply for internal circuitry loudspeaker amplifier gain adjustment loudspeaker amplifier output ground reference line current sense positive line terminal line voltage regulator decoupling 22 receive amplifier input automatic gain control line loss compensation 23 24 3 35 V regulated voltage supply for microcontroller microphone supply output 25 27 reference current adjustment loudspeaker volume adjustment 28 29 base microphone amplifier output base microphone amplifier gain adjustment 30 31 base microphone amplifier input ground reference for microphone amplifiers 3 negative handset microphone amplifier input MIC 3 positive handset microphone amplifier input DTMF 3 2 30 3 31 4 32 dual tone multi frequency input QR GARX 35 36 33 34 earpiece
6. NAME DESCRIPTION VERSION TEA1097TV VS040 plastic very small outline package 40 leads SOT158 1 SOT307 2 TEA1097H QFP44 plastic quad flat package 44 leads lead length 1 3 mm body 10 x 10 x 1 75 mm 1999 Apr 08 2 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer EE QUICK REFERENCE DATA line 15 MA Papp 20 Q Zine 600 Q f 1 KHZ Tamb 25 C AGC pin connected to LN PD HIGH HFC LOW AUXC LOW MUTT HIGH MUTR HIGH measured according to test circuits unless otherwise specified SYMBOL PARAMETER CONDITIONS liine line current operating range normal operation TEA1097H TEA1097TV with reduced performance stabilized voltage between SLPE line 15 MA and GND Vret liine 70mA regulated supply voltage for line 15 MA internal circuitry line 70 MA regulated supply voltage on Vess gt 3 35 V 0 25 V pin Vpop typ otherwise VESI ext external voltage supply allowed on pin ESI lESI ext e current supply allowed on pin les current available on pin Ve speech mode handsfree mode HFC HIGH EN current consumption on Ven during PD LOW power down phase Gy MIC LN voltage gain from pin Vuic 5 mV RMS MIC MIC to LN GyiR RECO voltage gain from pin IR Vin 15 mV RMS referenced to LN to RECO AGyar gain voltage range between pins RECO and QR GyTxin TxouT volta
7. TEXAS 79905 Tel 9 5 800 234 7381 Fax 9 5 800 943 0087 Middle East see Italy For all other countries apply to Philips Semiconductors International Marketing amp Sales Communications Building BE p P O Box 218 5600 MD EINDHOVEN The Netherlands Fax 31 40 27 24825 Philips Electronics N V 1999 a worldwide company Netherlands Postbus 90050 5600 PB EINDHOVEN Bldg VB Tel 31 40 27 82785 Fax 31 40 27 88399 New Zealand 2 Wagener Place C P O Box 1041 AUCKLAND Tel 64 9 849 4160 Fax 64 9 849 7811 Norway Box 1 Manglerud 0612 OSLO Tel 47 22 74 8000 Fax 47 22 74 8341 Pakistan see Singapore Philippines Philips Semiconductors Philippines Inc 106 Valero St Salcedo Village PO Box 2108 MCC MAKATI Metro MANILA Tel 63 2 816 6380 Fax 63 2 817 3474 Poland UI Lukiska 10 PL 04 123 WARSZAWA Tel 48 22 612 2831 Fax 48 22 612 2327 Portugal see Spain Romania see Italy Russia Philips Russia Ul Usatcheva 35A 119048 MOSCOW Tel 7 095 755 6918 Fax 7 095 755 6919 Singapore Lorong 1 Toa Payoh SINGAPORE 319762 Tel 65 350 2538 Fax 65 251 6500 Slovakia see Austria Slovenia see Italy South Africa S A PHILIPS Pty Ltd 195 215 Main Road Martindale 2092 JOHANNESBURG P O Box 7430 Johannesburg 2000 Tel 27 11 470 5911 Fax 27 11 470 5494 South America Al Vicente Pinzon 173 6th floor 04547 130 SAO PAULO SP Brazil Tel 55 11 821 2333 Fax 55 1
8. VeBith release time when Vurps jumps from 20 mV 10 dB to 20 mV total harmonic distortion at t gt tatt VHFRX 20 mV 10 qB VBB th Vep limiter threshold Mute Loudspeaker pin DLC see note 1 VDLC th threshold voltage required on pin DLC to obtain mute receive condition IDLc th threshold current sourced by pin DLC in mute receive condition AGyrx mute voltage gain reduction in mute Vnc 0 2 V 60 80 dB receive condition Note 1 When the channel is enabled according to Table 1 1999 Apr 08 26 Product specification Philips Semiconductors TEA1097 Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer TEST AND APPLICATION INFORMATION toovor jmo Sal LD HZ6EOLVAL au 0 19491 SisauueIgd Ul Uauf SuequUNU uid aU Z60lLVAL ewei XU4H YO iI on 04 Sue Aug om auto F Rp A1 T W 001 dict suen Hy Ho O 0SH d 0100 door 20 YOy Z y YVD5 T WO y I ron wa ON Joo mu0o0 wos Sk 8k 94 eu19 x pg P a XNVXL 4u 001 a XAYA vue an1a Au 004 aO 1k XNWXL Nal NIXL a ANLO W109 X14H Au 001 D d NIXL 8 DN VA Log 2900 L X1Y9y Xl1vy99 T L INOXL du EA Ol 002
9. amplifier output earpiece amplifier gain adjustment RECO HFTX 37 38 35 36 receive amplifier output transmit input for auxiliary receive amplifier HFC PD 39 40 37 38 logic input power down input active LOW 1999 Apr 08 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer US TEA1097TV MGL393 Fig 2 Pin configuration VSO40 1999 Apr 08 6 Philips Semiconductors Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer Product specification TEA1097 43 TXAUX 42 RAUX 41 AUXC 40 MUTR TEA1097H 39 MUTT 38 PD 37 HFC 36 HFTX 35 RECO 34 GARX GND 13 SLPE 14 LN 15 REG 16 al Q lt Ku a n c 22 FCA019 MICS 20 AGC 18 STAB 21 Fig 3 Pin configuration QFP44 FUNCTIONAL DESCRIPTION All data given in this chapter are typical values except when otherwise specified Supplies LINE INTERFACE AND INTERNAL SUPPLY PINS LN SLPE REG AND Vgs The supply for the TEA1097 and its peripherals is obtained from the line The IC generates a stabilized reference voltage Vref between pins SLPE and GND This reference voltage is equal to 3 7 V for line currents lower than 18 mA It than increases linearly with the line current and reaches the value of 6 1 V for line currents higher tha
10. mode the capacitor Cregg is internally disconnected Philips Semiconductors Speech and loudspeaker amplifier IC with Product specification TEA1097 auxiliary inputs outputs and analog multiplexer RINGER MODE PINS ESI Vag AUXC AND PD The TEA1097 is designed to be activated during the ringing phase The loudspeaker amplifier can be used for the melody signal The IC must be powered by an external supply on pin ESI while applying a HIGH level on the logic input AUXC and a LOW level on the PD input Only the HFRX input and the LSAO output are activated in order to limit the current consumption Some dynamic limiting is provided to prevent Vgp from being discharged below 2 7 V Transmit channels pins MIC MIC DTMF TXAUX and LN HANDSET MICROPHONE AMPLIFIER PINS MIC MIC AND LN The TEA1097 has symmetrical microphone inputs The input impedance between MIC and MIC is 70 kQ typ The voltage gain between pins MIC MIC and LN is set to 44 3 dB Without limitation from the output the microphone input stage can accommodate signals up to 18 mV RMS at room temperature for 2 of THD The microphone inputs are biased at one diode voltage Automatic gain control is provided for line loss compensation DTMF AMPLIFIER PINS DTMF LN AND RECO The TEA1097 has an asymmetrical DTMF input The input impedance between pin DTMF and GND is 20 KQ typ The voltage gain between pins DTMF and LN is set to 25 35 dB W
11. point combined with the line interface The line current is flowing through the Hope resistor and is sunk by the Vep voltage stabilizer becoming available for a loudspeaker amplifier or any peripheral IC Its voltage is equal to 3 0 V for line currents lower than 18 mA It than increases linearly with the line current and reaches the value of 5 3 V for line currents greater than 45 mA It is temperature compensated The aim of the current switch TR1 and TR2 is to reduce distortion of large AC line signals Current Is_pe is supplied to Vgg via TR1 when the voltage on SLPE is greater than Vess 0 25 V When the voltage on SLPE is lower than this value the current Is_pe is shunted to GND via TR2 The reference voltage Var can be increased by connecting an external resistor between pins REG and SLPE For large line currents this increase can slightly affect some dynamic performances such as maximum signal level on the line for 2 THD The voltage on pin Vgz is not affected by this external resistor See Fig 5 for the main DC voltages ch GND VBB E2 REG R1 TN2 R2 from J2 preamp Ol TN1 GND 1999 Apr 08 ae GND i MGM298 Fig 4 Line interface principle Philips Semiconductors Speech and loudspeaker amplifier IC with Product specification TEA1097 auxiliary inputs outputs and analog multiplexer 8 FCA049 voltag
12. referenced to 1 kHz HFC LOW MUTT HIGH MUTR HIGH AUXC LOW Gy DTMF RECO voltage gain from pin DTMF to Von 50 mV RMS 16 5 dB RECO 1999 Apr 08 21 Philips Semiconductors Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer SYMBOL PARAMETER CONDITIONS Product specification TEA1097 TX AUXILIARY AMPLIFIER USING TXAUX PINS TXAUX AND LN Gy TXAUX LN voltage gain from pin TXAUX to Vtxaux 0 1 V RMS LN gain variation with frequency f 300 to 3400 Hz referenced to 1 kHz gain variation with temperature Tamp 25 to 75 C referenced to 25 C THD total harmonic distortion at LN Vin 1 4 V RMS VTXAUX rms maximum input voltage at line 70 MA THD 2 TXAUX RMS value Vno LN noise output voltage at pin LN psophometrically pin TXAUX shorted to GND weighted p53 curve through 200 Q in series with 10 uF gain reduction if not activated MICROPHONE MONITORING ON TXOUT PINS MIC MIC AND TXOUT Gv MIC TXOUT voltage gain from pin MIC MIC Vmic 2 mV RMS to TXOUT gain variation with frequency f 300 to 3400 Hz referenced to 1 kHz voltage gain from pin IR Vir 15 mV RMS referenced to LN to RECO gain variation with frequency f 300 to 3400 Hz referenced to 1 kHz gain variation with temperature Tamb 25 to 75 C referenced to 25 C VIR rms max maximum input volta
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15. O 0 TEA10970 OO INTEGRATED CIRCUITS DATA SHEET TEA1097 speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer Product specification 1999 Apr 08 Supersedes data of 1998 Jun 11 File under Integrated Circuits IC03 Philips PHILIPS Semiconductors DH LI p Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with TEA1097 auxiliary inputs outputs and analog multiplexer FEATURES Line interface Low DC line voltage Voltage regulator with adjustable DC voltage Symmetrical high impedance inputs 70 kQ for dynamic magnetic or electric microphones Dual Tone Multi Frequency DTMF input with confidence tone on earphone and or loudspeaker Receive amplifier for dynamic magnetic or piezo electric earpieces with externally adjustable gain Automatic Gain Control AGC for true line loss compensation Supplies Provides a strong 3 35 V regulated supply for microcontroller or dialler Provides filtered power supply optimized according to line current and compatible with external voltage or current sources e Filtered 2 V power supply output for electret microphone Compatible with a ringer mode e Power Down PD logic input for power down Loudspeaker amplifier e Single ended rail to rail output e Externally adjustable gain e Dynamic limiter to prevent distortion e Logarithmic volume control via linear potentiometer Auxiliary interf
16. Ol oI CT FOIN som Jt K Any xz SO e u aH 00 soot soot I dul UO EI De 3 aT 9x85 Gef EH KEIER X A za 0 Oen u r 009 aa D dur vue Juve l l l L 4 27 1999 Apr 08 Product specification Speech and loudspeaker amplifier IC with Philips Semiconductors TEA1097 wesbelp uoneoyjdde siseg zU Du HZ60 Y3 24 0 19491 sIseujUaed u UBAIB Suaquunu ud y Ju I VA Ze wA Dr 0 ee O1dg T 1OAy aVLSy ola JOA gie VIN ONE ST vi e ei ei Tei Au 001 6 2 LL Le E Le z Zb Ge 4 Soda C XNWHo vay sav Ju 001 seyspuey ebp 10 He auyoew Bun msue XNYXL XNYXLo ID wos NG ik i Ouer am ozz adost ossz 4u 00L ovsI s1v9 SIV 3 el Y AWLO Awun 9 Sg Au 2 Suoudomu 4u 004 KK T seq I jspuey NIXL T z renbip wos XH4H NIXLo mz ab sowy x lt X1V9_ oy oe 4 eb 4u 004 0044 XLWDy SOW wos Q 3X49 T inoa dayspuey IEu Ip oi a E aug JE o 001 Au 00 D gt Sue Y S 3 XLH vn V 001 adoo X59 e be D Z y YHVD9 VAL O i i WOINy yt s VASL AUZ o miy up Om CJ Cc H09 vA Ky o Jugg ii auoydouolw DILL W i seyspury Ip 10 Au 001 ou mei Aus 2 SRN O aulyoew Duuaweug
17. R AUXO and 6 8 dB for Gy TXAUX LN which corresponds approximately to a line length of 5 5 km for a 0 5 mm twisted pair copper cable To enable this gain control the pin AGC must be shorted to pin LN The start current for compensation corresponds to a line current equal to typically 23 mA and the stop current to 57 mA The start current can be increased by connecting an external resistor between pins AGC and LN It can be increased to 40 mA using a resistor typically equal to 80 kQ The start and stop current will be maintained in a ratio equal to 2 5 By leaving the AGC pin open circuit the gain control is disabled and no line loss compensation is performed Philips Semiconductors Speech and loudspeaker amplifier IC with Product specification TEA1097 auxiliary inputs outputs and analog multiplexer Base microphone channel pins TXIN GATX TXOUT and GNDTX see Fig 7 The TEA1097 has an asymmetrical base microphone input TXIN with an input resistance of 20 kQ The DC biasing of the input is 0 V The output TXOUT is biased at two diodes voltage and has a current capability equal to 20 uA RMS The gain of the microphone amplifier from pins TXIN to TXOUT can be adjusted from 0 to 31 dB to suit specific application requirements The gain is proportional to the value of Rgatx and equals 14 85 dB with Reatx 30 1 kQ Without limitation from the output the microphone input stage can accommodate signals up to 18 mV RMS a
18. S value gain reduction if not activated HFC LOW MUTT LOW MUTR HIGH AUXC LOW RX AMPLIFIER USING IR PINS IR AND AUXO Gy IR AUXO Atum voltage gain from pin IR Vin 3 mV RMS referenced to LN to AUXO gain variation with frequency f 300 to 3400 Hz referenced to 1 kHz AGT gain variation with temperature Tamb 25 to 75 C referenced to 25 C VAUXO tms Vno AUXO rms maximum output voltage on THD 2 AUXO RMS value noise output voltage at pin psophometrically AUXO pin IR is an open circuit weighted p53 curve RMS value gain reduction if not activated HFC HIGH MUTT LOW MUTR HIGH AUXC HIGH Automatic Gain Control pin AGC gain control range for transmit line 70 mA on and receive amplifiers affected Gy MIC LN Gy iR RECO by the AGC with respect to and Gv IR AUXO line 15 mA line 70 mA Gy TXAUX LN Istart highest line current for maximum gain lowest line current for maximum gain 1999 Apr 08 24 Philips Semiconductors Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer SYMBOL PARAMETER CONDITIONS MIN Product specification TEA1097 Logic inputs pins HFC AUXC MUTT and MUTR OWievelinputvotage oap HIGH level input voltage input current for pins HFC and AUXC for pins MUTT and MUTR voltage gain adjustment with RGatx VTXIN 3 mV RMS
19. The automatic gain control has no effect on these channels Receive channels pins IR RAUX RECO GARX and QR RX AMPLIFIER PINS IR AND RECO The receive amplifier has one input IR which is referred to the line The input impedance between pins IR and LN is 20 kQ typ and the DC biasing between these pins is equal to one diode voltage The gain between pins IR referenced to LN and RECO is typically equal to 29 7 dB Without limitation from the output the input stage can accommodate signals up to 50 mV RMS at room temperature for 2 of THD This receive amplifier has a rail to rail output RECO which is designed for use with high ohmic real loads larger than 5 kQ This output is biased at two diodes voltage Automatic gain control is provided for line loss compensation Philips Semiconductors Speech and loudspeaker amplifier IC with Product specification TEA1097 auxiliary inputs outputs and analog multiplexer EARPIECE AMPLIFIER PINS GARX AND QR The earpiece amplifier is an operational amplifier having its output QR and its inverting input GARX available Its input signal comes via a decoupling capacitor from the receive RECO output It is used in combination with two resistors to get the required gain or attenuation compared to the receive gain It can be chosen between 3 and 15 dB Two external capacitors Cear connected between pins GARX and QR and Cgars connected between pins GARX and GND e
20. aces e Asymmetrical high impedance input for electret microphone ORDERING INFORMATION e General purpose auxiliary output for transmit and receive e Auxiliary transmit input with high signal level capability dedicated to line transmission e Auxiliary receive input with high signal level capability e Integrated multiplexer for channels selection APPLICATIONS e Telephone answering machines e Telephones with digital handsfree e Line powered telephone sets e Cordless telephones e Fax machines GENERAL DESCRIPTION The TEA1097 is an analog bipolar circuit dedicated for telephone applications It includes a line interface handset microphone and earpiece amplifiers base microphone and loudspeaker amplifiers some specific auxiliary Inputs Outputs I Os and an analog multiplexer to enable the right transmit and or receive channels The multiplexer is controlled by a logic circuitry decoding four logic inputs provided by a microcontroller Twelve different application modes have been defined and can be accessed by selecting the right logic inputs This IC can be supplied by the line and or by the mains if available in a cordless telephone or a telephone answering machine for example It provides a 3 35 V supply for a microcontroller or dialler and a 2 V filtered voltage supply for electret microphones The IC is designed to facilitate the use of the loudspeaker amplifier during ringing phase TYPE PACKAGE NUMBER
21. an 0 65 mm 5 Wave soldering is only suitable for SSOP and TSSOP packages with a pitch e equal to or larger than 0 65 mm it is definitely not suitable for packages with a pitch e equal to or smaller than 0 5 mm DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development Preliminary specification This data sheet contains preliminary data supplementary data may be published later Product specification This data sheet contains final product specifications Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System IEC 134 Stress above one or more of the limiting values may cause permanent damage to the device These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied Exposure to limiting values for extended periods may affect device reliability Application information Where application information is given it is advisory and does not form part of the specification LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances devices or systems where malfunction of these products can reasonably be expected to result in personal injury Philips customers using or selling these products for use in such applications do so at their own risk and ag
22. d record messages while listening in the loudspeaker 1 1 0 1 0 TXIN to TXOUT HFTX to AUXO cordless intercom with base RAUX to RECO HFRX to LSAO and MICS is active 1 1 1 1 0 TXIN to TXOUT TXAUX to LN digital handsfree IR to RECO IR to AUXO conversation HFRX to LSAO MICS is active 1 1 1 0 0 MIC to LN IR to RECO handset conversation with IR to AUXO HFRX to LSAO MIC to TXOUT QR and MICS are active group listening 1999 Apr 08 15 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer TERIOS LIMITING VALUES In accordance with the Absolute Maximum Rating System IEC 134 DC levels are referenced to GND SYMBOL PARAMETER positive continuous line voltage repetitive line voltage during switch on or line interruption positive continuous voltage on pin ESI maximum voltage on pins REG SLPE IR and AGC on all other pins except Vpp maximum line current for TEA1097H TEA1097TV total power dissipation TEA1097TV TEA1097H IC storage temperature Tamb operating ambient temperature THERMAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS VALUE UNIT Rth j a thermal resistance from junction to ambient in free air TEA1097TV 115 K W TEA1097H 63 K W 1999 Apr 08 16 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inouts outpu
23. ed to be accurate and reliable and may be changed without notice No liability will be accepted by the publisher for any consequence of its use Publication thereof does not convey nor imply any license under patent or other industrial or intellectual property rights Printed in The Netherlands 465002 750 03 pp36 Philips Semiconductors Date of release 1999 Apr 08 Document order number 9397 750 05008 Lett make things better S PHILIPS
24. ee different channels two transmit channels and one receive channel 1999 Apr 08 AUXILIARY AMPLIFIERS USING THE MICROPHONE INPUTS PINS MIC MIC AND AUXO The auxiliary transmit amplifier using the microphone MIC and MIC inputs has a gain of 25 5 dB referenced to AUXO Without limitation from the output the input stage can accommodate signals up to 16 mV RMS at room temperature for 2 of THD The automatic gain control has no effect on this channel AUXILIARY AMPLIFIERS USING HFTX PINS HFTX AND AUXO The auxiliary transmit amplifier using the HFTX input has a gain of 15 2 dB referenced to AUXO The automatic gain control has no effect on this channel RX AMPLIFIER USING IR PINS IR AND AUXO The auxiliary receive amplifier uses pin IR as input The input is referenced to pin LN and the DC biasing between these two pins is one diode voltage The voltage gain between the input IR referenced to LN and the output AUXO is typically equal to 32 8 dB which compensates typically the attenuation provided by the anti sidetone network Automatic gain control is provided for line loss compensation Automatic gain control pin AGC The TEA1097 performs automatic line loss compensation which fits well with the true line attenuation The automatic gain control varies the gain of some transmit and receive amplifiers in accordance with the DC line current The control range is 6 45 dB for Gy MIC LN Gy iR RECO and Gy i
25. es II 0 0 01 0 02 0 03 EXTERNAL SUPPLY PINS ESI AND Vgp The TEA1097 can be supplied by the line as well as by external power sources voltage or current sources that must be connected to pin ESI The IC will choose which supply to use according to the voltage it can provide A voltage supply on ESI is efficient only if its value is greater than the working voltage of the internal Vgsg voltage stabilizer Otherwise the IC continues to be line powered The current consumed on this source is at least equal to the internal consumption It depends on the voltage difference between the value forced on ESI and the working voltage of the internal stabilizer The current required increases with the voltage difference to manage The excess current compared to the internal consumption becomes then available for other purposes such as supplying a loudspeaker amplifier The voltage source should not exceed 6 V If the value of the external voltage source can be lower than the working voltage of the internal stabilizer an external diode is required to avoid reverse current flowing into the external power supply In case of current source the voltage on Vgg and ESI depends on the current available It is internally limited to 6 6 V The current source should not exceed 140 mA 1999 Apr 08 Fig 5 Main DC voltages as a function of line current 0 04 0 05 0 06
26. ge gain from pin TXIN to Vtxin 3 mV RMS 13 15 14 85 TXOUT Reatx 30 1 kQ note 1 Gy TXAUX LN voltage gain from pin TXAUX to LN Vtxaux 0 1 V RMS 11 5 12 5 note 1 GyHFRX LSAC voltage gain from pin HFRX to Vuerx 20 mV RMS 25 5 28 30 5 LSAO Rears 255 kQ note 1 gain control range for transmit and liine 70 mA on 5 45 6 45 7 45 receive amplifiers affected by the Gy MIC LN GyiR RECO AGC with respect to line 15 MA _ and Gyir auxo Note 1 When the channel is enabled according to Table 1 1999 Apr 08 3 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer TEA1097 BLOCK DIAGRAM EN 19 STARTER 10 13 VBB 4 9 12 ESI V LINE CURRENT DETECTION SE 19 23 DD LOW VOLTAGE BEHAVIOUR Dees 20 24 mics AGC 22 AGC POWER DOWN 38 40 PD CURRENT SOURCES Tail currents for preamps GND TXAUX gt pe ANALOG DTMF gt MULTIPLEXER e TEA1097TV CONTROL on Mr 29 GATX MIC TXOUT GNDTX STAB TAIL CURRENTS VOLUME 27 VOL CONTROL TXIN GALS LSAO HFRX DLC HFTX AUXO IR RECO GARX QR RAUX MGL392 The pin numbers given in parenthesis refer to the TEA1097H Fig
27. ge on IR line 70 mA THD 2 referenced to LN RMS value VRECO rms max maximum output voltage on pin THD 2 0 75 RECO RMS value Vno RECO tms noise output voltage at pin psophometrically 88 dBVp RECO pin IR is an open circuit weighted p53 curve RMS value AGymute gain reduction if not activated HFC LOW 60 80 dB MUTT LOW MUTR LOW AUXC LOW 1999 Apr 08 22 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with ane TEA1097 auxiliary inputs outputs and analog multiplexer SYMBOL PARAMETER CONDITIONS RX EARPIECE AMPLIFIER PINS GARX AND QR AGy RECO aR gain voltage range between pins RECO and QR Var rms max maximum output voltage on pin sine wave drive QR RMS value D 150 Q THD lt 2 Vno QR tms noise output voltage at pin QR Gwar 0 dB pin IR is an open circuit psophometrically RMS value weighted p53 curve RX AMPLIFIER USING RAUX PINS RAUX AND RECO GyRAUX RECO voltage gain from pin RAUX to Vraux 0 4 V RMS RECO Atum gain variation with frequency f 300 to 3400 Hz referenced to 1 kHz AGv T gain variation with temperature Tamb 25 to 75 C referenced to 25 C VRAUX rms max maximum input voltage on RAUX THD 2 RMS value Vhno RECO rms noise output voltage at pin psophometrically RECO pin RAUX shorted to weighted p53 curve GND through 200 Q in series with 10 uF RMS
28. ithout limitation from the output the input stage can accommodate signals up to 180 mV RMS at room temperature for 2 of THD When the DTMF amplifier is enabled dialling tones may be sent on the line These tones can be heard in the earpiece or in the loudspeaker at a low level This is called the confidence tone The voltage attenuation between pins DTMF and RECO is typically equal to 16 5 dB The DC biasing of this input is 0 V The automatic gain control has no effect on these channels 1999 Apr 08 11 AUXILIARY TRANSMIT AMPLIFIER PINS TXAUX AND LN The TEA1097 has an asymmetrical auxiliary input TXAUX The input impedance between pins TXAUX and GND is 20 kQ typ The voltage gain between pins TXAUX and LN is set to 12 5 dB Without limitation from the output the input stage can accommodate signals up to 1 2 V RMS at room temperature for 2 of THD The TXAUX input is biased at two diodes voltage Automatic gain control is provided for line loss compensation MICROPHONE MONITORING ON TXOUT PINS MIC MIC AND TXOUT The voltage gain between the microphone inputs MIC MIC and the output TXOUT is set to 49 8 dB This channel gives an image of the signal sent on the line while speaking in the handset microphone Using external circuitry this signal can be used for several purposes such as sending dynamic limiting or anti howling in a listening in application The TXOUT output is biased at two diodes voltage
29. line A 0 07 Vpp SUPPLY FOR MICROCONTROLLERS PIN Vpp The voltage on Vpp supply point follows the voltage on Vag with a difference equal to 250 mV typ and is internally limited to 3 35 V This voltage is temperature compensated This supply point can provide a current up to 3 mA typ Its internal consumption stays low a few 10 nA as long as Vpp does not exceed 1 5 V see Fig 6 An external voltage can be connected on Vpp with limited extra consumption on Vpp typically 100 uA This voltage source should not be lower than 3 5 V and higher than 6 V Vgs and Vpp can supply external circuits in the limits of currents provided either from the line or from pin ESI taking into account the internal current consumption Philips Semiconductors Speech and loudspeaker amplifier IC with Product specification TEA1097 auxiliary inputs outputs and analog multiplexer FCA050 SUPPLY FOR MICROPHONE PINS MICS AND GNDTX The MICS output can be used as a supply for an electret microphone Its voltage is equal to 2 V it can source current up to 1 mA and has an output impedance equal to 200 Q LOW VOLTAGE BEHAVIOUR For line currents below 9 mA the reference voltage is aut
30. n 45 mA For line currents below 9 mA the internal reference voltage generating Vref is automatically adjusted to a lower value This is the so called low voltage area and the TEA1097 has limited performances in this area see Section Low voltage behaviour This reference voltage is temperature compensated 1999 Apr 08 The voltage between pins SLPE and REG is used by the internal regulator to generate the stabilized reference voltage and is decoupled by means of a capacitor between pins LN and REG This capacitor converted into an equivalent inductance realizes the set impedance conversion from its DC value Rg_pe to its AC value done by an external impedance The IC regulates the line voltage at pin LN and it can be calculated as follows Vin Vret Recpe lei pe X lSLPE liine l where liine line current IX current consumed on pin LN approximately a few uA Jo pe Current flowing through the Hate resistor Philips Semiconductors Speech and loudspeaker amplifier IC with Product specification TEA1097 auxiliary inputs outputs and analog multiplexer The preferred value for Rs_peis 20 Q Changing this value will affect more than the DC characteristics it also influences the transmit gains to the line the gain control characteristic the sidetone level and the maximum output swing on the line As can be seen from Fig 4 the internal circuitry is supplied by pin Vgg which is a strong supply
31. n of the loudspeaker amplifier is rapidly reduced approximately 1 ms When the supply voltage exceeds 2 7 V the gain of the loudspeaker amplifier is increased again By forcing a level lower than 0 2 V on pin DLC the loudspeaker amplifier is muted Philips Semiconductors Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer Selection of transmit and receive channels for 12 different application modes Product specification TEA1097 Logic inputs Table 1 LOGIC INPUTS PD HFC MUTT MUTR AUXC FEATURES APPLICATION EXAMPLES 0 X X X 1 HFRX to LSAO ringer mode 0 X X X 0 flash DC dialling 0 DTMF to LN DTMF to RECO QR and MICS are active DTMF dialling in handset MIC to AUXO RAUX to RECO QR and MICS are active MIC to LN IR to RECO IR to AUXO MIC to TXOUT QR and MICS are active TXAUX to LN and IR to AUXO RAUX to RECO and HFRX to LSAO cordless intercom with corded handset handset conversation conversation using auxiliary I O cordless digital handsfree in mobile listening on the loudspeaker TXAUX to LN IR to AUXO RAUX to RECO HFRX to LSAO DTMF to LN DTMF to RECO HFRX to LSAO QR and MICS are active TXAUX to LN IR to AUXO IR to RECO and HFRX to LSAO answering machine play and record messages listen the recorded message on the loudspeaker DTMF dialling in handsfree or group listening modes answering machine play an
32. nded and provides a first order low pass filter VOLUME CONTROL PIN VOL The loudspeaker amplifier gain can be adjusted with the potentiometer RyoL A linear potentiometer can be used to obtain logarithmic control of the gain at the loudspeaker amplifier Each 1 9 kQ increase of Ryo results in a gain loss of 3 dB 1999 Apr 08 14 voume vot 27 4 CONTROL 23 ETEN MGL394 Fig 8 Loudspeaker channel DYNAMIC LIMITER PIN DLC The dynamic limiter of the TEA1097 prevents clipping of the loudspeaker output stage and protects the operation of the circuit when the supply voltage at Vpp falls below 2 7 V Hard clipping of the loudspeaker output stage is prevented by rapidly reducing the gain when the output stage starts to saturate The time in which gain reduction is effected clipping attack time is approximately a few milliseconds The circuit stays in the reduced gain mode until the peaks of the loudspeaker signals no longer cause saturation The gain of the loudspeaker amplifier then returns to its normal value within the clipping release time typically 100 ms Both attack and release times are proportional to the value of the capacitor Cpic The total harmonic distortion of the loudspeaker output stage in reduced gain mode stays below 1 up to 10 dB min of input voltage overdrive providing Vurrx is below 580 mV RMS When the supply voltage drops below an internal threshold voltage of 2 7 V the gai
33. nsure stability The Cgar capacitor provides a first order low pass filter The cut off frequency corresponds to the time constant Cear x Reo The relationship Cgars 10 x Cear must be fulfilled The earpiece amplifier has a rail to rail output QR biased at two diodes voltage It is designed for use with low ohmic real loads 150 Q or capacitive loads 100 nF in series with 100 Q When the amplifier is turned off the signal present on the earpiece is equal to the ratio between the load on QR and Rei Reo AUXILIARY RECEIVE AMPLIFIER PINS RAUX AND RECO The auxiliary receive amplifier has an asymmetrical input RAUX it uses the RECO output Its input impedance between pins RAUX and GND is typically equal to 20 kQ The voltage gain between pins RAUX and RECO is equal to 2 4 dB Without any limitation from the output the input stage can accommodate signals up to 0 95 V RMS at room temperature for 2 of THD This auxiliary amplifier has a rail to rail output RECO which is designed for use with high ohmic real loads larger than 5 kQ This output is biased at two diodes voltage The automatic gain control has no effect on this channel Auxiliary amplifiers using AUXO pins MIC MIC HFTX IR and AUXO The TEA1097 has an auxiliary output AUXO biased at two diodes voltage This output stage is a rail to rail one designed for use with high ohmic real loads larger than 5 kQ The AUXO output amplifier is used in thr
34. omatically adjusted to a lower value the Vgp voltage follows the SLPE voltage with 250 mV difference The excess current available for other purposes than DC biasing of the IC becomes small In this low voltage area the IC has limited performances When the Vep voltage reaches 2 7 V the Vgg detector of the receive dynamic limiter on pin LSAO acts continuously discharging the capacitor at pin DLC In the DC condition the loudspeaker is automatically disabled below this voltage 1999 Apr 08 Fig 6 Current consumption on Vpp 25 3 0 Vpp V When Vegg becomes lower than 2 5 V the TEA1097 is forced in a low voltage mode whatever the levels on the logic inputs are It is a speech mode with reduced performances only enabling the microphone channel between the MIC inputs and LN and the earpiece amplifier These two channels are able to deliver signals for line currents as small as 3 mA The HFC input is tied to GND sinking a current equal to 300 uA typ POWER DOWN MODE PINS PD AND AUXC To reduce current consumption during dialling or register recall flash the TEA1097 is provided with a power down input PD When the voltage on pins PD and AUXC is LOW the current consumption from Vgp and Vpp is reduced to 460 uA typ Therefore a capacitor of 470 uF connected to pin Vep is sufficient to power the TEA1097 during pulse dialling or flash The PD input has a pull up structure while AUXC has a pull down structure In this
35. peaker amplifier IC with auxiliary inputs outputs and analog multiplexer TERIOS Suitability of surface mount IC packages for wave and reflow soldering methods SOLDERING METHOD PACKAGE WAVE REFLOW BGA SQFP not suitable HLQFP HSQFP HSOP HTSSOP SMS not suitable PLCC SO SOJ suitable LQFP QFP TQFP not recommended 3 4 SSOP TSSOP VSO not recommended Notes 1 All surface mount SMD packages are moisture sensitive Depending upon the moisture content the maximum temperature with respect to time and body size of the package there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them the so called popcorn effect For details refer to the Drypack information in the Data Handbook IC26 Integrated Circuit Packages Section Packing Methods 2 These packages are not suitable for wave soldering as a solder joint between the printed circuit board and heatsink at bottom version can not be achieved and as solder may stick to the heatsink on top version 3 If wave soldering is considered then the package must be placed at a 45 angle to the solder wave direction The package footprint must incorporate solder thieves downstream and at the side corners 4 Wave soldering is only suitable for LQFP TQFP and QFP packages with a pitch e equal to or larger than 0 8 mm it is definitely not suitable for packages with a pitch e equal to or smaller th
36. ree to fully indemnify Philips for any damages resulting from such improper use or sale 1999 Apr 08 32 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer TEA1097 NOTES 1999 Apr 08 33 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer TEA1097 NOTES 1999 Apr 08 34 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer TEA1097 NOTES 1999 Apr 08 35 Philips Semiconductors Argentina see South America Australia 34 Waterloo Road NORTH RYDE NSW 2113 Tel 61 2 9805 4455 Fax 61 2 9805 4466 Austria Computerstr 6 A 1101 WIEN P O Box 213 Tel 43 1 60 101 1248 Fax 43 1 60 101 1210 Belarus Hotel Minsk Business Center Bld 3 r 1211 Volodarski Str 6 220050 MINSK Tel 375 172 20 0733 Fax 375 172 20 0773 Belgium see The Netherlands Brazil see South America Bulgaria Philips Bulgaria Ltd Energoproject 15th floor 51 James Bourchier Blvd 1407 SOFIA Tel 359 2 68 9211 Fax 359 2 68 9102 Canada PHILIPS SEMICONDUCTORS COMPONENTS Tel 1 800 234 7381 Fax 1 800 943 0087 China Hong Kong 501 Hong Kong Industrial Technology Centre 72 Tat Chee Avenue Kowloon Tong HONG KONG Tel 852 2319 7888 Fax 852 2319 7700 Colombia
37. t room temperature for 2 of THD A capacitor can be connected in parallel with Rgatx to provide a 1st order low pass filter The pin numbers given in parenthesis refer to the TEA1097H MGL395 Fig 7 Base microphone channel 1999 Apr 08 13 Philips Semiconductors Speech and loudspeaker amplifier IC with Product specification TEA1097 auxiliary inputs outputs and analog multiplexer Loudspeaker channel 14 GALS E CGALS 16 LSAO 12 T Lang DYNAMIC LIMITER The pin numbers given in parenthesis refer to the TEA1097H LOUDSPEAKER AMPLIFIER PINS HFRX GALS AND LSAO The TEA1097 has an asymmetrical input for the loudspeaker amplifier with an input resistance of 20 kQ between pins HFRX and GND It is biased at two diodes voltage The input stage can accommodate signals up to 580 mV RMS at room temperature for 2 of THD The rail to rail output stage is designed to power a loudspeaker down to 8 Q connected as a single ended load between pins LSAO and GND When the circuit is externally supplied the maximum output power is equal to 280 mW typ for 6 V applied to pin ESI The gain of the loudspeaker amplifier can be adjusted from 0 to 35 dB to suit specific application requirements The gain from HFRX to LSAO is proportional to the value of Reacts and equals 28 dB with Reais 255 kQ A capacitor connected in parallel with Rears is recomme
38. tion Speech and loudspeaker amplifier IC with auxiliary inoputs outputs and analog multiplexer TEA1097 QFP44 plastic quad flat package 44 leads lead length 1 3 mm body 10 x 10 x 1 75 mm SOT307 2 detail X m D gt B La Hp lt v B 0 2 5 5mm scale DIMENSIONS mm are the original dimensions UNIT Ze Au A2 A3 bp e DM EM e Hp He L Lp v w y Zo ze o 0 25 1 85 0 40 0 25 10 1 10 1 12 9 12 9 0 95 1 2 1 2 10 mm 2 10 905 1 65 25 0o20 014 99 99 8 123 123 13 055 015 0 15 DI 8 o Note 1 Plastic or metal protrusions of 0 25 mm maximum per side are not included OUTLINE REFERENCES EUROPEAN ISSUE DATE VERSION IEC JEDEC EIAJ PROJECTION SH E 97 08 01 1999 Apr 08 30 Philips Semiconductors Speech and loudspeaker amplifier IC with Product specification TEA1097 auxiliary inputs outputs and analog multiplexer SOLDERING Introduction to soldering surface mount packages This text gives a very brief insight to a complex technology A more in depth account of soldering ICs can be found in our Data Handbook IC26 Integrated Circuit Packages
39. ts and analog multiplexer TEA1097 FCA026 120 80 40 3 5 5 5 G 9 5 11 5 13 5 Fig 9 Safe operating area TEA1097TV 1999 Apr 08 17 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer TEA1097 FCA025 80 5 40 LINE Tamb C Pitot mW 35 1304 45 1158 1012 866 720 Fig 10 Safe operating area TEA1097H 1999 Apr 08 18 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer JEE CHARACTERISTICS line 15 MA Papp 20 Q Zine 600 Q f 1 KHZ Tamb 25 C AGC pin connected to LN PD HIGH HFC LOW AUXC LOW MUTT HIGH MUTR HIGH measured according to test circuits DC levels are referenced to GND unless otherwise specified SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNIT Supplies LINE INTERFACE AND INTERNAL SUPPLY PINS LN SLPE REG AND Vgs stabilized voltage between SLPE liine 15 MA 3 4 3 7 4 V and GND Vref line 70 MA 57 6 1 6 5 V Vee regulated supply voltage for line 15 mA 2 75 3 0 3 25 V internal circuitry line 70 MA 49 53 57 V line current for voltage increase start current 18 mA stop current 45
40. value AGv mute gain reduction if not activated HFC LOW MUTT LOW MUTR LOW AUXC LOW Auxiliary amplifiers using AUXO see note 1 TX AUXILIARY AMPLIFIER USING MIC AND MIC PINS MIC MIC AND AUXO Gv MIC AUXO voltage gain from pin MIC MIC Vmic 10 mV RMS to AUXO gain variation with frequency f 300 to 3400 Hz referenced to 1 kHz gain variation with temperature Tamp 25 to 75 C referenced to 25 C VMIC rms maximum input voltage on THD 2 MIC MIC RMS value Vhno AUXO rms noise output voltage at pin psophometrically AUXO pins MIC MIC shorted weighted p53 curve to GNDTX through 200 Q in series with 10 uF RMS value 1999 Apr 08 23 Philips Semiconductors Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer SYMBOL PARAMETER CONDITIONS Product specification TEA1097 TX AUXILIARY AMPLIFIER USING HFTX PINS HFTX AND AUXO Gy HFTX AUXO Atum voltage gain from pin HFTX to Vuetx 100 mV RMS AUXO gain variation with frequency f 300 to 3400 Hz referenced to 1 kHz AGv T VAUXO rms Vhno AUXO rms gain variation with temperature Tamp 25 to 75 C referenced to 25 C maximum output voltage on pin THD 2 0 8 AUXO RMS value noise output voltage at pin psophometrically AUXO pin HFTX shorted to weighted p53 curve GND through 200 Q in series with 10 uF RM
41. wave For packages with leads on two sides and a pitch e larger than or equal to 1 27 mm the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed circuit board smaller than 1 27 mm the footprint longitudinal axis must be parallel to the transport direction of the printed circuit board The footprint must incorporate solder thieves at the downstream end For packages with leads on four sides the footprint must be placed at a 45 angle to the transport direction of the printed circuit board The footprint must incorporate solder thieves downstream and at the side corners During placement and before soldering the package must be fixed with a droplet of adhesive The adhesive can be applied by screen printing pin transfer or syringe dispensing The package can be soldered after the adhesive is cured Typical dwell time is 4 seconds at 250 C A mildly activated flux will eliminate the need for removal of corrosive residues in most applications Manual soldering Fix the component by first soldering two diagonally opposite end leads Use a low voltage 24 V or less soldering iron applied to the flat part of the lead Contact time must be limited to 10 seconds at up to 300 C When using a dedicated tool all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 C Philips Semiconductors Product specification Speech and louds
42. x LsAo voltage gain from pin HFRX to PD LOW LSAO AUXC HIGH Ves 3 5 V VHFRX 20 mV RMS Rears 255 kQ Zimic input impedance differential between pins MIC and MIC single ended between pins MIC MIC and GNDTX input impedance between pins IR and LN input impedance between pins DTMF and GND input impedance between pins TXIN and GNDTX 1999 Apr 08 20 Philips Semiconductors Product specification Speech and loudspeaker amplifier IC with auxiliary inputs outputs and analog multiplexer US SYMBOL PARAMETER CONDITIONS Zi HFTX input impedance between pins HFTX and GND Zi HFRX input impedance between pins HFRX and GND i input impedance between pins TXAUX and GND input impedance between pins RAUX and GND TX amplifiers see note 1 TX HANDSET MICROPHONE AMPLIFIER PINS MIC MIC AND LN Gy MIC LN voltage gain from pin MIC MIC Vic 5 mV RMS to LN gain variation with frequency f 300 to 3400 Hz referenced to 1 kHz gain variation with temperature Tamb 25 to 75 C referenced to 25 C common mode rejection ratio total harmonic distortion at pin Vin 1 4 V RMS LN line 4 MA Vin 0 12 V RMS noise output voltage at pin LN psophometrically pins MIC MIC shorted weighted p53 curve through 200 Q gain reduction if not activated VDTMF 50 mV RMS LN gain variation with frequency f 300 to 3400 Hz

Philips TEA1097 Speech loudspeaker amplifier IC with auxiliary inputs/outputs analog multiplexer handbook

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