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ROHM BD88200GUL/BD88210GUL/BD88215GUL/BD88220GUL handbook

1. 1u 4 0 4 0 ONEN SHDNLB VDD SHDNLB VDD SHDNRB 0V SHDNRB 0V SHDNRB VDD 100n T 3 0 This caracteristics has T 3 0 This caracteristics has T hysteresis 40mV typ by E hysteresis 40mV typ by 0 UVLO UVLO z e Z 10n O 20 SG 20 gt D D re 2 5 SE 1 0 O 10 0 1n 0 0 0 0 00 10 20 30 40 50 60 00 10 20 30 40 50 60 Supply Voltage V Supply Voltage V Supply Voltage V Fig 1 Standby Current vs Fig 2 Monaural Operating Fig 3 Stereo Operating Supply Voltage Current vs Supply Voltage Current vs Supply voltage SHDNLB VDD SHDNLB SHDNRB ur SHDNRB VDD L gt H RL 16Q out of phase No Load VSS 90 Setup time z S No Load 5 O S g L 3 gt a 2 L 32Q in phase D O S 9 E RL 32 2 Sr DUL Of phase E THD NS 40dB 20kHz LPF Stereo 20 25 30 35 40 45 50 55 6 0 20 25 30 35 40 45 50 55 6 0 20 25 30 35 40 45 50 55 6 0 Supply Voltage V Supply Voltage V Supply Voltage V Fig 4 Negative Voltage vs Fig 5 Setup time vs Fig 6 Maximum power vs Supply Voltage Supply Voltage Supply Voltage VDD 2 4V VDD 3 3V VDD 5 5V Ripple 100mVp p Ripple 100mVp p Ripple 1
2. 10 0 g VDD 3 3V Po 10mW 6 Ri 10kQ Input coupling 720 capacitor 1 0uF a 4 TD S 40 2 RL 16 Q lt 0 Q 60 is 3 i RL 32Q 77 6 80 4 6 100 8 120 10 120 100 80 60 40 20 0 10 100 1k 10k 100k Input Voltage dBV Frequency Hz Fig 34 Output Voltage vs Fig 35 Gain vs Frequency Input Voltage VDD 3 3V VDD 3 3V 100 VDD 3 3V 10 RL 16Q 20kHz LPF Stereo in phase T 1 9 z Po 0 1 a a Po 1mW IT 01 I 20kHz LPF Stereo s RL 32Q Outof phase 0 001 1n 100n 10u 1m 100m Output Power W Frequency Hz Fig 37 THD N vs Output Fig 38 THD N vs Frequency Power VDD 3 3V RL 32 9 VDD 3 3V RL 16 Q VDD 3 3V Input connect to the ground 5 with 1uF a D 5 8 a op Frequency Hz Fig 40 Noise Spectrum VDD 3 3V www rohm com 7 25 2011 ROHM Co Ltd All rights reserved Technical Note 100 10 Z T Q E 01 EVDD 33V 20kHz LPF Stereo RL 16Q _ Out of phase 0 001 in 100n 10u 1m 100m Output Power W Fig 36 THD N vs Output Power VDD 3 3V RL 16
3. Po 0 1mW Po 1mW lt Po 10mW Frequency Hz Fig 45 THD N vs Frequency VDD 3 3V RL 16 Q 8 25 Technical Note 100 10 i i Zo F 01 EVDD 3 3V i 20kHz LPF H p 0 01 f 1kHz y Stereo J RL 16Q Out of phase 0 001 1n 100n 10u 1m 100m Output Power W Fig 43 THD N vs Output Power VDD 3 3V RL 16 9 100 VDD 3 3V 10 RL 320 20kHz LPF Stereo in phase 1 Po 0 1mW A E Po 0 1m T o Po 1mW 0 01 lt Po 10mW 0 001 10 100 1k 10k 100k Frequency Hz Fig 46 THD N vs Frequency VDD 3 3V RL 32 Q 2011 03 Rev A BD88200GUL BD88210GUL BD88215GUL BD88220GUL Electrical characteristic curves BD88220GUL Reference data Output Voltage dBV VDD 3 3V RL_ 32Q pr BPF 120 100 80 100 0 01 0 001 Spectrum dBV 60 40 20 0 Input Voltage dBV Fig 48 Output Voltage vs Input Voltage VDD 3 3V VDD 3 3V 20kHz LPF f 1kHz Stereo RL 32 Q 1n 100n
4. Q O 8 O O 6 O QO BOTTOM LAYER TOP VIEW BOTTOM SILKSCREEN TOP VIEW Fig 6 ROHM Application Board Layout BD88200GUL www rohm com 22 25 2011 03 Rev A 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note Notes for use 1 Absolute Maximum Ratings An excess in the absolute maximum ratings such as supply voltage temperature range of operating conditions etc can break down devices thus making impossible to identify breaking mode such as a short circuit or an open circuit If any special mode exceeding the absolute maximum ratings is assumed consideration should be given to take physical safety measures including the use of fuses etc Operating conditions These conditions represent a range within which characteristics can be provided approximately as expected The electrical characteristics are guaranteed under the conditions of each parameter Reverse connection of power supply connector The reverse connection of power supply connector can break down ICs Take protective measures against the breakdown due to the reverse connection such as mounting an external diode between the power supply and the IC s power supply terminal Power supply line Design PCB pattern to provide low impedance for the wiring between the power supply and the GND lines In this regard for the digital block power supply and the analog block power supply even though th
5. 10 Ground wiring pattern If small signal GND and large current GND are provided It will be recommended to separate the large current GND pattern from the small signal GND pattern and establish a single ground at the reference point of the set PCB so that resistance to the wiring pattern and voltage fluctuations due to a large current will cause no fluctuations in voltages of the small signal GND Pay attention not to cause fluctuations in the GND wiring pattern of external parts as well 11 External capacitor In order to use a ceramic capacitor as the external capacitor determine the constant with consideration given to a degradation in the nominal capacitance due to DC bias and changes in the capacitance due to temperature etc 12 About the rush current For ICs with more than one power supply it is possible that rush current may flow instantaneously due to the internal powering sequence and delays Therefore give special consideration to power coupling capacitance power wiring width of GND wiring and routing of wiring AO EE 23 25 2011 03 Rev A 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note Ordering part number oJLerepefoo RS es es eet ee Part No Part No Package Packaging and forming specification BD 88200 GUL VCSP50L2 E2 Embossed tape and reel 88210 88215 88220 VCSP50L2 BD88200GUL lt Tape and Reel information gt
6. 30 RL 16Q S Cin 1 0uF 20kHz LPF 40 Z Cin 0 47uF 50 Q F 60 Cin 0 22uF 70 80 90 KR Cin 2 2uF 100 10 100 1k 10k 100k Frequency Hz Capacitor size 1608 Fig 64 THD N by the input coupling capacitor Reference data State of terminal when power down The state of the terminal changes by the power control of the headphone amplifier When it is shutdown the input impedance of the input terminal becomes 7 1k Q typ In BD88200GUL become Ri 7 1kQ The time constant can be reduced when the input coupling capacitor is charged The input voltage changes while charging up the input coupling capacitor Therefore do not operate the headphone amplifier while charging __Output Bias Audio Source gt A time s time s Fig 65 Input voltage transition with input coupling capacitor This charge time constant becomes the following formula 3 by using the input coupling capacitor and the input impedance And the calculation value of the convergence to the wait time is indicated in Fig 66 T RinCin 3 3 Rin 7 1k Q typ In BD88200GUL Rin Ri 7 1kQ 100 90 80 70 60 50 40 30 20 10 0 Convergence Ot IT 2T AT AT 5r 6T Tt 8T Wait time s Fig 66 Wait time and convergence Reference www rohm com 16 25 2011 03 Rev 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL
7. Out of phase 10u im 100m Output Power W Fig 51 THD N vs Output Power VDD 3 3V RL 32 9 VDD 3 3V Input connect to the ground with UF Fig 54 Noise Spectrum Frequency Hz VDD 3 3V www rohm com 2011 ROHM Co Ltd All rights reserved Gain dB THD N oO A N NN KR OD amp oO VDD 3 3V Po 10mW Input coupling capacitor 1 0uF Frequency Hz Fig 49 Gain vs Frequency VDD 3 3V VDD 3 3V RL 160 20kHz LPF Stereo in phase Po 0 1mW Po 1mW Frequency Hz Fig 52 THD N vs Frequency VDD 3 3V RL 16 Q 9 25 100 0 01 0 001 Technical Note In phase VDD 3 3V 20kHz LPF f 1kHz Stereo RL 16Q Outof phase in 100n 10u 1m 100m Output Power W Fig 50 THD N vs Output Power VDD 3 3V RL 16 Q VDD 3 3V RL 320 20kHz LPF Stereo in phase 1mW Po 0 1mW Frequency Hz Fig 53 THD N vs Frequency VDD 3 3V RL 32 9 2011 0
8. Applications Mobile Phones Smart Phones PDAs Portable Audio Players PCs TVs Digital Cameras Digital Video Cameras Electronic Dictionaries Voice Recorders Bluetooth Head sets etc Line up Supply Voltage V Type Supply Current MA Gain V V Maximum Output Power mW ROHM Electronic Components No 11102EAT05 Package BD88200GUL BD88210GUL BD88215GUL BD88220GUL www rohm com 2011 ROHM Co Ltd All rights reserved 2 0 No signal Variable gain with external resister 1 0 80 VDD 3 3V RL 160 THD N S 1 f 1kHz 1 25 0 006 VDD 3 3V RL 160 Po 10mW f 1kHz 80 f 217Hz VCSP50L2 2 1mm x 2 1mm 2011 03 Rev Directive Compliance BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note Absolute maximum ratings Parameter Symbol Ratings Unit SGND to PGND voltage Voc 0 0 V SVDD to PVDD voltage Voo 0 3 0 3 V SVSS to PVSS voltage Vss 0 0 V SGND or PGND to SVDD PVDD voltage VDG 0 3 6 0 V SVSS PVSS to SGND or PGND voltage VsG 3 5 0 3 V SGND to IN_ voltage VIN SVSS 0 3 2 8 V SGND to OUT_ voltage Vout SVSS 0 3 2 8 V PGND to C1P voltage Voip PGND 0 3 PVDD 0 3 V PGND to C1N voltage Vc1N PVSS 0 3 PGND 0 3 V SGND to SHDN_B voltage VsH SGND 0 3 SVDD 0 3 V Input current lin 10 10 mA Power Dissipation Pp 1350 mW Storage Temperature Range
9. Fig 75 1 6 1 4 1 2 1 5 0 8 0 6 0 4 0 2 0 0 25 50 75 100 125 150 Ta C Fig 2 Thermal Derating Curve 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note Evaluation Board BD882XXFV Evaluation Board loads with the necessary parts It can operate only by it It is using RCA Connector for input terminal and Headphone jack 9 3 5mm for output terminal Therefore it can easily connect between Audio equipments And it can operate by single supply 2 4 to 5 5V The switch on the board SDB can control shutdown Spec Item Limit Unit Supply Voltage Range VDD 3 0 to 5 5 V Maximum Supply Current 1 0 A Operating Temperature Range 40 to 85 C Input Voltage Range 2 5 to 2 5 V Output Voltage Range 2 5 to 2 5 V Minimum Load Impedance 15 Q Schematic OUTL OUTR CN R R6 R5 L Headphone Jack OUTL OUTR Q IN lt L gt sl ree ak IN lt R gt IN lt L gt IN lt R gt C6 C4 RCA White TUF BD88210GUL 1yF RCA Red BD88215GUL A4 BD88220GUL 1P H PVDD C1 CA 2 2UF 5 SVDD D4 M CS GND D 2 2uF Wee VDD VDD sone B2 B1 all Open O SHDNLB SHDNRB E Open W2 sW1 Ou GND GND Fig 73 Evaluation Board Schematic BD88210GUL BD88215GUL BD88220GUL www rohm com 20 25 2011 03 Rev 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technica
10. Table 2 Control of the headphone amplifier H L Power on Power down V MA SHDNxB Amprilier Amplifier Disable Enable Fig 62 Area of headphone amplifier can operate SVSS does not have internal connection with PVSS Please connect SVSS with PVSS on the application board Input coupling capacitor Input DC level of BD882xxGUL is OV SGND The input coupling capacitor is necessary for the connection with the signal source device The signal decrease happens in the low frequency because of composing the high pass filter by this input coupling capacitor and the input impedance of BD882xxGUL The input impedance of BD882xxGUL is Rin 14k typ The cutoff frequency of this high pass filter becomes the following formula In BD88200GUL Rin becomes external resistance Ri b B TRinCin Cin is the input coupling capacitor 9 0 6 0 3 0 F Cin 10uF 0 0 3 0 6 0 9 0 Cin 4 7uF 12 0 15 0 XI 18 0 Cin 1uF 21 0 Gain dB Frequency Hz Fig 63 Frequency response by the input coupling capacitor Reference data siete 15 25 2011 03 Rev 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note And the degradation of THD N happens because of the input coupling capacitor Therefore please consider these about the selection of parts 40 BD88215GUL VDD 3 3V 20 Po 10mW
11. Technical Note UVLO SHUTDOWN CONTROL BD882xxGUL has low voltage protection function UVLO Under Voltage Lock Out And protect from the illegal operation of IC by a low power supply voltage The detection voltage is 2 13V typ so it does not influence 2 4V of recommended operation voltage UVLO controls the whole of IC and does both the negative power supply charge pump and the headphone amplifier in power down TSD BD882xxGUL has overheating protection function TSD Thermal Shutdown And the headphone amplifier becomes shutdown when illegally overheating by the headphone amplifier illegally operation Timming Chart Usually Operation PVDD SVDD SHDNLB SHDNRB PVSS SVSS INL INR OUTL OUTR Shutdown Setup Signal output Shutdown Fig 67 Usually Operation UVLO Operation ES Ramee PVDD SVDD SHDNLB DO SHDNRB PVSS SVSS OUTL OUTR Signal output UVLO Setup Signal output Fig 68 UVLO Operation TSD Operation Hysteresis 5 C poene E E 222222 Ta PVDD SVDD SHDNLB SHDNRB PVSS SVSS OUTL OUTR Signal output TSD Signal output Fig 69 TSD Operation www rohm com 17 25 2011 03 Rev 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note SHUTDOWN Lch Input Application Circuit sine i SHDNB Fh Part Remarks CHA RGE PUMP UVLO SH
12. 0 05 Direction of feed 0 1 0 05 0 55MAX 2 10 0 05 14 00 25 0 05 0 05 A B noce Direction of feed iT 23 1pin 0 30 0 05 P 0 Order quantity needs to be multiple of the minimum quantity www rohm com 94 25 2011 03 Rev A 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note VCSP50L2 BD88220GUL 1PIN MARK lt Tape and Reel information gt Tape Embossed carrier tape 3000pcs Direction i PES of feed The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 2 10 0 05 0 1 0 05 0 55MAX 2 10 0 05 14 00 25 0 05 0 05 A B sanos Direction of feed pin Order quantity needs to be multiple of the minimum quantity 1 2 0 30 0 05 www rohm com 25 25 2011 03 Rev 2011 ROHM Co Ltd All rights reserved Notice Notes No copying or reproduction of this document in part or in whole is permitted without the consent of ROHM Co Ltd The content specified herein is subject to change for improvement without notice The content specified herein is for t
13. 00mVp p BPF BPF BPF m m m D D X a X X ag X a T nf 10 100 1k 10k 100k Frequency Hz Frequency Hz Frequency Hz Fig 7 PSRR vs Frequency Fig 8 PSRR vs Frequency Fig 9 PSRR vs Frequency VDD 2 4V VDD 3 3V VDD 5 5V VDD 2 4V VDD 3 3V VDD 5 5V VOUT 200mVp p VOUT 200mVp p VOUT 200mVp p RL 32 Q RL 32 Q RL 32 Q BPF BPF BPF 3 3 3 ad X om om co T nf 10 100 1k 10k 100k Frequency Hz Fig 11 Crosstalk vs Frequency VDD 3 3V Frequency Hz Fig 10 Crosstalk vs Frequency VDD 2 4V Frequency Hz Fig 12 Crosstalk vs Frequency VDD 5 5V www rohm com 4 25 2011 03 Rev A 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Electrical characteristic curves BD88215GUL Reference data VDD 24V R _ 329 2 f 1kHz _ BPF gt a D O 2 5 gt A D Oo 120 100 80 60 40 20 0 Input Voltage dBV
14. 3 Rev A BD88200GUL BD88210GUL BD88215GUL BD88220GUL Pin Arrangement Pin Function Ball Matrix Pin name 1 2 3 4 a SHONRE sous PGND A Bottom View Function Technical Note A1 INR Headphone Amplifier Rch input A2 SGND Ground for Headphone Amplifier A3 PVDD Positive Power Supply for Charge Pump A4 C1P Flying Capacitor CF Positive B1 SHDNRB Headphone Amplifier Rch Shutdown Control H active L shutdown B2 SHDNLB Headphone Amplifier Lch Shutdown Control H active L shutdown B4 PGND Ground for Charge Pump C1 INL Headphone Amplifier Lch input C2 OUTR Headphone Amplifier Rch output C4 CIN Flying Capacitor CF Negative D1 SVDD Ground for Headphone Amplifier D2 OUTL Headphone Amplifier Lch output D3 SVSS Negative Supply Voltage for Signal D4 PVSS Pin equivalent circuit www rohm com Negative Supply Voltage output PVDD PVDD PGND PGND V NV PGND PGND PVSS PVSS Fig 55 Pin equivalent circuit 10 25 2011 ROHM Co Ltd All rights reserved PGND PGND 2011 03 Rev A BD88200GUL BD88210GUL BD88215GUL BD88220GUL Block Diagram m Z Q I Y CHARGE UVLO PUMP SHUTDOWN CONTROL se aoe CLOCK y GENERATOR CONTROL SGND INR Fig 56 Block Diagram www rohm com 2011 ROHM Co Ltd All rights
15. 6Q Outof phase 0 001 1n 100n 10u 1m 100m Output Power W Fig 20 THD N vs Output Power VDD 3 3V RL 16 9 100 10 g 1 Z T S F F 01 EYDD 3 3V 20kHz LPF 0 01 f 1kHz i Stereo RL 32Q Outof phase 0 001 in 100n 10u im 100m Output Power W Fig 23 THD N vs Output Power VDD 3 3V RL 32 9 5 25 Output Voltage dBV Gain dB 100 120 Technical Note 120 100 80 60 Input Voltage dBV Fig 15 Output Voltage vs 2 0 0 Input Voltage VDD 5 5V 1 1 1 1 co O A N O N A OO O O VDD 5 5V Po 10mW RL 16 Q Input coupling capacitor 1 0uF Frequency Hz Fig 18 Gain vs Frequency 100 0 001 100 0 001 VDD 5 5V In phase VDD 5 5V 20kHz LPF f 1kHz Stereo a RL 16Q Out of phase 1n 100n 10u 1m 100m Output Power W Fig 21 THD N vs Output Power VDD 5 5V RL 16 9 VDD 5 5V 20kHz LPF f 1kHz Stereo RL 32Q Out of phase in 100n 10u Output Power W im 100m Fig 24 THD N vs Output Power VDD 5 5V RL 32 9 2011 03 Rev A BD88200GUL B
16. D88210GUL BD88215GUL BD88220GUL Electrical characteristic curves BD88215GUL Reference data Continued 100 VDD 2 4V io RL 16 Q 20kHz LPF Stereo in phase se 1 Po 0 1mW a Po 1mW 02 0 01 Po 10mW 0 001 10 100 1k 10k 100k Frequency Hz Fig 25 THD N vs Frequency VDD 2 4V RL 16Q 100 VDD 2 4V io RL 32 Q 20kHz LPF Stereo in phase st Po 0 1mW Po 10mW 01 0 01 Po 1mW 0 001 10 100 1k 10k 100k Frequency Hz Fig 28 THD N vs Frequency VDD 2 4V RL 32 9 VDD 2 4V Input connect to the ground S with TuF a E D 2 ep Frequency Hz Fig 31 Noise Spectrum VDD 2 4V www rohm com 2011 ROHM Co Ltd All rights reserved Spectrum dBV 20kHz LPF Stereo in phase Po 0 1mW Po 1mW Frequency Hz Fig 26 THD N vs Frequency 100 0 01 VDD 3 3V RL 16 Q VDD 3 3V RL 320 20k
17. Fig 13 Output Voltage vs Input Voltage VDD 2 4V 10 8 6 4 T 2 D OF 2 VDD 2 4V 4 Po 10mW 6 RL 16 Q Input coupling k capacitor 1 0uF 10 Frequency Hz Fig 16 Gain vs Frequency VDD 2 4V 100 10 st In phase Q 01 EVDD 2 4V 20kHz LPF Stereo f RL 16Q Outof phase 0 001 1n 100n 10u 1m 100m Output Power W Fig 19 THD N vs Output Power VDD 2 4V RL 16 Q 100 10 S 1 Z Q 01 EVDD 24V 20kHz LPF Stereo RL 32Q 0 001 in 100n 10u im 100m Output Power W Fig 22 THD N vs Output Power VDD 2 4V RL 32 9 www rohm com 2011 ROHM Co Ltd All rights reserved Output Voltage dBV VDD 3 3V RL 320 7 f 1kHz BPF 120 100 80 60 40 20 0 Input Voltage dBV Fig 14 Output Voltage vs Input Voltage VDD 3 3V 10 8 6 4 on 2 D 0 O 2 VDD 3 3V 4 Po 10mW 6 RL 16 Q Input coupling 2 capacitor 1 0uF 10 10 100 1k 10k 100k Frequency Hz Fig 17 Gain vs Frequency VDD 3 3V 100 10 i z 01 EVDD 3 3V 20kHz LPF i 0 01 f 1kHz 1 Stereo RL 1
18. Hz LPF Stereo in phase Po 0 1mW Po 10mW Po 1mW 10 100 1k 10k 100k Frequency Hz Fig 29 THD N vs Frequency VDD 3 3V RL 32 Q VDD 3 3V Input connect to the ground with UF Frequency Hz Fig 32 Noise Spectrum VDD 3 3V 6 25 Spectrum dBV 100 0 01 Technical Note VDD 5 5V RL 16Q 20kHz LPF Stereo in phase Po 0 1mW Po 1mW Po 10mW 100 1k 10k 100k Frequency Hz Fig 27 THD N vs Frequency 100 0 01 VDD 5 5V RL 16 Q VDD 5 5V RL 320 20kHz LPF Stereo in phase Po 0 1mW Po 10mW Po 1mW 10 100 1k 10k 100k Frequency Hz Fig 30 THD N vs Frequency VDD 5 5V RL 32 Q VDD 5 5V Input connect to the ground with 1uF Frequency Hz Fig 33 Noise Spectrum VDD 5 5V 2011 03 Rev A BD88200GUL BD88210GUL BD88215GUL BD88220GUL Electrical characteristic curves BD88200GUL Reference data
19. Q 100 VDD 3 3V T RL 320 20kHz LPF Stereo in phase st z Po 0 1mW Q Po 1mW T g 0 01 Po 10mW 0 001 Frequency Hz Fig 39 THD N vs Frequency VDD 3 3V RL 32 Q 2011 03 Rev A BD88200GUL BD88210GUL BD88215GUL BD88220GUL Electrical characteristic curves BD88210GUL Reference data VDD 3 3V RL 32Q gt BPF Output Voltage dBV 120 100 80 60 40 20 0 Input Voltage dBV Fig 41 Output Voltage vs Input Voltage VDD 3 3V 100 VDD 3 3V 20kHz LPF 0 01 f 1kHz Stereo N RL 32Q Out of phase 0 001 in 100n 10u im 100m Output Power W Fig 44 THD N vs Output Power VDD 3 3V RL 32 9 0 VDD 3 3V 20 F Input connect to the ground 40 with 1uF 60 80 Spectrum dBV 100 120 140 Frequency Hz Fig 47 Noise Spectrum VDD 3 3V www rohm com 2011 ROHM Co Ltd All rights reserved Gain dB 10 8 VDD 3 3V Po 10mW 6 Input coupling 4 capacitor 1 0uF RL 16 Q 0 i RL 32Q 77 4 6 8 10 10 100 1k 10k 100k Frequency Hz Fig 42 Gain vs Frequency VDD 3 3V VDD 3 3V RL 160 20kHz LPF Stereo in phase
20. ROHM SEMICONDUCTOR Headphone Amplifiers Coupling Capacitorless Headphone Amplifiers BD88200GUL BD88210GUL BD88215GUL BD88220GUL Description BD88xxxGUL is output coupling capacitorless headphone amplifier This IC has a negative voltage generator of regulated type built in and generates the direct regulated negative voltage from the supply voltage It is possible to drive headphones in a ground standard with both voltage of the positive voltage 2 4V and the negative voltage 2 4V Therefore a large capacity output coupling capacitor becomes needless and can reduce a cost a board area and the height of the part In addition there is not the signal decrement by the low range to happen by output coupling capacitor and output load impedance and can output a rich low tone And the function Virtual ground is embedded Noise between IC and Headphone jack can be canceled by using Virtual ground function Features 1 2 4V to 5 5V Single Supply Operation No Bulky DC Blocking Capacitors Required Technical Note No Degradation of Low Frequency Response Due to Output Capacitors Virtual Ground Referenced Outputs Gain setting BD88200GUL BD88210GUL BD88215GUL BD88220GUL Low THD N Low Supply Current Variable gain with external resistors 1 0V V 1 5V V 2 0V V Integrated Negative Power Supply Integrated Short Circuit and Thermal Overload Protection Small package VCSP50L2 2 1mm x 2 1mm
21. Tape Embossed carrier tape 3000pcs E2 The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 1PIN MARK 2 10 0 05 Direction of feed 0 1 0 05 0 55MAX 2 10 0 05 14 00 25 0 05 0 05 A B PT 0 5x3 P a pin Direction of feed 0 30 0 05 P 0 Order quantity needs to be multiple of the minimum quantity VCSP50L2 BD88210GUL lt Tape and Reel information gt Tape Embossed carrier tape 3000pcs E2 The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 1PIN MARK 2 10 0 05 Direction of feed 0 1 0 05 0 55MAX 2 10 0 05 14 00 25 0 05 0 05 A B PT 0 5x3 P pin Direction of feed 0 30 0 05 P 0 Order quantity needs to be multiple of the minimum quantity VCSP50L2 BD88215GUL lt Tape and Reel information gt Tape Embossed carrier tape 3000pcs E2 The direction is the 1pin of product is at the upper left when you hold reel on the left hand and you pull out the tape on the right hand 1PIN MARK 2 10
22. TsTG 55 150 Cc In operating over 25 C de rate the value to 10 8mW C This value is for mounted on the application board Grass epoxy size 40mm x 60mm H 1 6mm Top Copper area 79 9 Bottom Copper area 80 2 Operating conditions Ratings Parameter Symbol Unit Min Typ Max Supply Voltage Range Vsvpp Vpvpp 2 4 5 5 V Operating Temperature Range ToprR 40 85 C www rohm com 2 95 2011 03 Rev 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Electrical characteristics Unless otherwise specified Ta 25 C SVDD PVDD 3 3V SGND PGND 0V SHDNB SVDD C1 C2 2 2uF RL No Load Ri Rf 10k Q Technical Note Limits a Parameter Symbol r 7 y Unit Conditions in yp ax Supply Current Shutdown Supply Current Ist 0 1 2 UA SHDNLB SHDNRB L i 13 i MA SHDNLB SHDNRB H L or L H Quiescent Supply Current ne ee 20 74 ma SHDNLB SHDNRB H nee i No signal SHDN_B Terminal H Level Input Voltage VIH 1 95 V L Level Input Voltage Vi 0 70 V Input Leak Current LEAK 1 UA Headphone Amplifier Shutdown to Full Operation tson 80 Us SHDNLB SHDNRB L H Offset Voltage Vis 0 5 5 0 mV RL 32 Q THD N S 40cB f 1kHz a gt ay mW 20kHz LPF for Singl
23. UTDOWN CONTROL Fig 70 BD88210GU BD88215GUL BD88220GUL application circuit SHUTDOWN Lch Input Control a 1 0 UF Ri Flying Temp Characteristic Hold Temp Characteristic Bypass Temp Characteristic Bypass Temp Characteristic Cil Coupling 1 0uF Temp Characteristic RI Capacitor sd Class B Due Coupling Temp Characteristic Input 10kQ MCROO6YZPJ103 Resistor ROHM Feedback MCROO6YZPJ103 I Ron CHARGE UVLO PUMP SHUTDOWN TSD CONTROL SHORT PROTECTION SVDD ee CLOCK ee ot GENERATOR Ri 10kQ 10kQ Cir Tio uF O Lch Input Fig 71 BD88200GUL application circuit In BD88200GUL the Pass Gain becomes the following formula 4 The Pass Gain and the resister Rf is limited by table 3 Cains R Pass Gain Ri is not limited But if this resister Ri is very small the signal decrease happens in the low frequency Refer to formula 2 www rohm com 18 25 2011 03 Rev 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note Thermal Derating Curve The reference value of the thermal derating curve is indicated in Fig 72 Conditions This value is for mounted on the ROHM application board Board size 40mm x 60mm x 1 6mm Top Copper Area 79 9 Bottom Copper Area 80 2 Board Layout
24. e Channel ne w RL 16Q THD NS 40dB f 1kHz 20kHz LPF for Single Channel RL 32 2 POUT 10mW f 1kHz 0 j Total Harmonic Distortion THD N ete mnie 20kHz LPF Noise i 0 006 0 100 7 RL 16 Q POUT 10mW f 1kHz 20kHz LPF SHDNLB SHDNRB H Input Impedance ZIN 10 14 19 kQ in BD88200GUL ZIN Ri BD88200GUL 1 00 BD88210GUL 1 05 1 00 0 95 Gain Ay VIV In BD88200GUL Gain is variable by the external resister of Ri and Rf BD88215GUL 1 55 1 50 1 45 BD88220GUL 2 06 2 00 1 94 Gain match A Av 1 Noise VN 10 uVrms 20kHz LPF JIS A Slew Rate SR 0 15 V us Maximum Capacitive Load CL 200 pF RL 32 Q f 1kHz VOUT 200mVp p Crosstalk CT 90 dB 1kHz BPE Power Supply g g g f 217Hz 100mVp p ripple Rejection Ratio LORS ee a 217Hz BPF Charge Pump Oscillator Frequency fosc oy re ae Thermal Shutdown Threshold TSD 145 Le Thermal Shutdown Hysteresis Tnys 5 C www rohm com 2011 ROHM Co Ltd All rights reserved 3 25 2011 03 Rev A BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note Electrical characteristic curves General Items Reference data Unless otherwise specified Ta 25 C SGND PGND 0V SHDNLB SHDNRB SVDD C1 C2 2 2uF Input coupling capacitor 1uF RL No Load In BD88200GUL the input resister Ri 10k Q feedback resister Rf 10kQ
25. ese power supplies has the same level of potential separate the power supply pattern for the digital block from that for the analog block thus suppressing the diffraction of digital noises to the analog block power supply resulting from impedance common to the wiring patterns For the GND line give consideration to design the patterns in a similar manner Furthermore for all power supply terminals to ICs mount a capacitor between the power supply and the GND terminal At the same time in order to use an electrolytic capacitor thoroughly check to be sure the characteristics of the capacitor to be used present no problem including the occurrence of capacity dropout at a low temperature thus determining the constant GND voltage Make setting of the potential of the GND terminal so that it will be maintained at the minimum in any operating state Furthermore check to be sure no terminals are at a potential lower than the GND voltage including an actual electric transient Short circuit between terminals and erroneous mounting In order to mount ICs on a set PCB pay thorough attention to the direction and offset of the ICs Erroneous mounting can break down the ICs Furthermore if a short circuit occurs due to foreign matters entering between terminals or between the terminal and the power supply or the GND terminal the ICs can break down Operation in strong electromagnetic field Be noted that using ICs in the strong electromagnetic field can
26. he purpose of introducing ROHM s products hereinafter Products If you wish to use any such Product please be sure to refer to the specifications which can be obtained from ROHM upon request Examples of application circuits circuit constants and any other information contained herein illustrate the standard usage and operations of the Products The peripheral conditions must be taken into account when designing circuits for mass production Great care was taken in ensuring the accuracy of the information specified in this document However should you incur any damage arising from any inaccuracy or misprint of such information ROHM shall bear no responsibility for such damage The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products ROHM does not grant you explicitly or implicitly any license to use or exercise intellectual property or other rights held by ROHM and other parties ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information The Products specified in this document are intended to be used with general use electronic equipment or devices such as audio visual equipment office automation equipment commu nication devices electronic appliances and amusement devices The Products specified in this document are not designed to be radiation tolerant While ROHM always makes efforts t
27. ions More detail product informations and catalogs are available please contact us Bola iLL ROHM Customer Support System SEMICONDUCTOR http www rohm com contact www rohm com 2011 ROHM Co Ltd All rights reserved R1120A
28. l Note OUTL OUTR CN1 R R6 R5 Headphone Jack IN lt L gt IN lt R gt IN lt L gt C6 R3 R1 C4 IN lt R gt RCA White THF 10k 10k92 1pF RCA Red BD88200GUL C1P VDD SHDNB Open O A SW R7 R8 10kQ 10kQ GND Fig 74 Evaluation Board Schematic BD88200GUL Parts List Parts name Type Value Size U1 CSP 14pin BD882xxGUL 2 1mm x 2 1mm C1 C3 Chip Ceramic capacitor 2 2UF 1608 C2 C4 C6 Chip Ceramic capacitor 1 0UF 1608 C7 Tantalum capacitor 10uF 3216 R1 R4 Chip Resistor 10k Q 1608 R5 R6 Chip Resistor Open CN1 Headphone jack D 3 5mm Ri R4 Chip Resistor 10k Q 1608 About BD88200GUL R1 R 4 of is the resistor for the gain setting Operation procedure Turn off the switch SHNDLB SHDNRB on evaluation board Connect the positive terminal of the power supply to the VDD pin and ground terminal to the GND pin Connect the left output of the audio source to the INL and connect the right output to the INR Turn on the power supply Turn on the switch SHDNLB SHDNRB on the evaluation board H Input the audio source GDS www rohm com 21 25 2011 03 Rev A 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note Board Layout o O O 1e O a O Q BOTTOM LAYER TOP VIEW BOTTOM SILKSCREEN TOP VIEW Fig 75 ROHM Application Board Layout BD88210GUL BD88215GUL BD88220GUL
29. malfunction them Inspection with set PCB On the inspection with the set PCB if a capacitor is connected to a low impedance IC terminal the IC can suffer stress Therefore be sure to discharge from the set PCB by each process Furthermore in order to mount or dismount the set PCB to from the jig for the inspection process be sure to turn OFF the power supply and then mount the set PCB to the jig After the completion of the inspection be sure to turn OFF the power supply and then dismount it from the jig In addition for protection against static electricity establish a ground for the assembly process and pay thorough attention to the transportation and the storage of the set PCB Input terminals In terms of the construction of IC parasitic elements are inevitably formed in relation to potential The operation of the parasitic element can cause interference with circuit operation thus resulting in a malfunction and then breakdown of the input terminal Therefore pay thorough attention not to handle the input terminals such as to apply to the input terminals a voltage lower than the GND respectively so that any parasitic element will operate Furthermore do not apply a voltage to the input terminals when no power supply voltage is applied to the IC In addition even if the power supply voltage is applied apply to the input terminals a voltage lower than the power supply voltage or within the guaranteed value of electrical characteristics
30. mp This circuit outputs the regulated negative voltage PVSS directly from power supply voltage PVDD Therefore it doesn t depend on the power supply voltage and a constant voltage is output PVSS 2 4V pryp refer to Fig 4 Moreover there is not swinging of the power supply by the output current of the headphone amplifier and it doesn t influence the headphone amplifier characteristic 0 0 5 SHDN_B SVDD CF CH 2 2uF VSS Voltage V on 0 20 40 60 80 Load Current mA Fig 60 Characteristics of load current regulation of PVSS Reference data Power control The power control is a logical sum of SHDNLB and SHDNRB The negative power supply circuit starts when H level is input to either of SHDNLB or SHDNRB and power is downed at the SHDNLB SHDNRB2 L level Table 1 Control of the charge pump SHDNLB SHDNRB Control L L Power down L H Power on H L Power on Operating Frequency The operating frequency of the negative power supply charge pump is designed for the temperature and the voltage dependence may decrease The reference data measurements is occupied to Fig 61 Please note the interference with the frequency in the application board 400 380 Ta 25 C Measure C1P CF CH 2 2uF VDD 3 3V Measure C1P 360 CF CH 2 2uF 340 320 300 280 260 240 220 200 50 0 0 0 50 0 100 0 2 0 3 0 4 0 5 0 6 0 Charge P
31. o enhance the quality and reliability of its Products a Product may fail or malfunction for a variety of reasons Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury fire or any other damage caused in the event of the failure of any Product such as derating redundancy fire control and fail safe designs ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual The Products are not designed or manufactured to be used with any equipment device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury Such as a medical instrument transportation equipment aerospace machinery nuclear reactor controller fuel controller or other safety device ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes If a Product is intended to be used for any such special purpose please contact a ROHM sales representative before purchasing If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law you will be required to obtain a license or permit under the Law Thank you for your accessing to ROHM product informat
32. reserved 11 25 Technical Note 2011 03 Rev A BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note Functional descriptions The conventional headphone amplifier composition is occupied to Fig 57 In this composition the signal is output by using the middle point bias circuit based on the middle point bias Therefore the output coupling capacitor that removes the DC voltage difference and does the AC coupling is necessary This coupling capacitor and the impedance of the headphone composes the high pass filter Therefore the signal degradation in the low frequency region learns by experience The output coupling capacitor should be a large capacity because the cutoff frequency of this high pass filter becomes the following formula 1 1 1 j 27 R Ce Cc is the coupling capacitor and RL is the impedance of the headphone Moreover POP noise by the middle point bias start up is generated and the degradation of PSRR learns by experience time s Middle Point Bias Circuit gt time s Fig 57 Conventional headphone amplifier composition The composition of the series of BD882xxGUL is occupied to Fig 58 In this composition the signal is output by using a negative voltage based on the ground level Therefore the amplifier output can be connected directly with the headphone And the output coupling capacitor becomes unnecessary Additionally the signal degradation in the low frequenc
33. ump Ocsillator Frequency kHz Charge Pump Ocsillator Frequency kHz Ta C Supply Voltage V Fig 61 Temperature characteristic and Voltage characteristic of operating frequency Reference data The flying capacitor and the hold capacitor The flying capacitor CF and the hold capacitor CH greatly influence the characteristic of the charge pump Therefore please connect the capacitor with an excellent temperature characteristic and voltage characteristic of 2 2uF as much as possible near IC Eo 14 25 2011 03 Rev 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note HEADPHONE AMP The headphone amplifier is driven by the internal positive voltage 2 4V and negative voltage SVSS 2 4V based on ground SGND Therefore the headphone can be connected without the output coupling capacitor As a result it brings the improved low frequency characteristic compared with the headphone of the conventional coupling capacitor type Power control L channel and R channel of the headphone amplifier can be independently controlled by SHDNLB and SHDNRB logic When the SVSS voltage is 1 1V ryp or more the headphone amplifier does not operate to protect from illegal operation And in addition the overcurrent protection circuit is built in The amplifier is shutdown when the overcurrent occurs because of the output short circuit etc and IC is protected from being destroyed
34. y region with the coupling capacitor is not generated and the deep bass is achieved Moreover POP noise is controlled because of no middle point bias start up And the degradation of PSRR doesn t occur by being based on the ground Input k CF Flying Capacitor CH Hold 7 Capacitor time s Fig 58 Composition of the series of BD882xxGUL www rohm com 12 25 2011 03 Rev A 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note BD882L LIGUL has the function Virtual Ground reference output Virtual Ground reference output can be canceled Noise see Fig 59 Vn between IC and headphone jack by feedback ground of headphone jack to IC gt Vout gt D D Vo 8 8 5 Vn Vg 0 timels timels Ground bias type gt Vout gt D Vo g aS Vn Vg 2 0 0 time s timels Virtual ground bias type Fig 59 Ground noise canceling function by virtual ground Connect Pin B2 COM to ground near headphone jack In case of BD88200GUL value error of external resistors makes noise rejection characteristic worse Put External resistors that have high accuracy within 5 near the LSI siete 13 25 2011 03 Rev 2011 ROHM Co Ltd All rights reserved BD88200GUL BD88210GUL BD88215GUL BD88220GUL Technical Note CHARGE PUMP CHARGE PUMP CONTROL The negative power supply circuit is composed of the regulated charge pu

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