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RF MICRO.DEVICES RF3322 handbook

1. RF3322 Preliminary Typical Application Schematic m Ha 20HI V 2 19 IH 3 18 SHDNB H4 Control 17H 10 nF 41 VIN O 5 16 O VOUT 10 nF HE VIN O 6 Le 5 15 1 iH 7 14 100 pF cs O 8 13 220 pF Hu uA 9 ard Gerd Bus 12 O TXEN SCLK O 10 11H 3 32 Rev A2 010518 Preliminary RF3322 VCC R2 100 kQ Notes Evaluation Board Schematic 1 4 layer board 2nd layer is ground plane L2 Ferrite L1 Ferrite JP1 300 300 VCC OMA O 1 VCC J3 J4 L3 Ferrite c2 Ci J1 6 300 Fan tur H2 GND 1e 1 p lt vec VCC1 10 V 2 2 L4 Ferrite VCC2 s 3 IH 3 GND L5 Ferrite VCC3 nie gt t O VCC2 L C cs Hi 20H Totur 0 1 uF VCC1 O 2 19 Ed IH 3 18 R4 rO VCC3 mos cs Ha pee per T1 Ta BO 1nF C10 240 J2 G T 5 16 T 1
2. Optimum Technology Matching Applied Package Style QSOP 20 L Si BUT GaAs HBT GaAs MESFET V siB CMOS SiGeHBT Si CMOS Features GND 1 s 20 GND2 2 Single 5V Supply jeer ered Differential Input and Output ENTE m e 30dB to 28dB Voltage Gain Range GND 4 Power 77 NC 5MHz to 65MHz Operation VIN 5 e pere vour Sophisticated Power Management VIN 6 15 VOUT DOCSIS 1 1 RF Compliant GND 7 14 RAMP CS 8 13 NC Ordering Information SDA 9 and Serial Bus 12 SHDN i RF3322 Cable Reverse Path Programmable Gain Amplifier SCLK o 11 GND RF3322 PCBA Fully Assembled Evaluation Board Functional Block Diagram RF Micro Devices Inc Tel 336 664 1233 7625 Thorndike Road Fax 336 664 0454 Greensboro NC 27409 USA http www rfmd com Rev A2 010518 3 27 LINEAR CATV AMPLIFIERS LINEAR CATV AMPLIFIERS RF3322 Preliminary Absolute Maximum Ratings Parameter Rating Unit Supply Voltage Vcc and Veco 0 5 to 6 0 Vpc Input RF Level 12 dBm AN caution ESD sensitive device Operating Ambient Temperature 40 to 85 C Storage Temperature 40 to 150 C RF Micro Devices believes the furnished information is correct and accurate Humidity 80 at the time of this printing However RF Micro Devices reserves the right to P E ma
3. DO D1 D2 D3 D4 D5 D6 D7 D il D D a D Q D Q D Q D D Q CK CLA CK CLA CK CLA CK CLA CK CLA CK CLR CK CLA CK CLR cs o o po O POR SDA O H gt D Q D Q D qQ D q D q D q D Q D q CK CLA CK CLR CK CLR CK CLA CK CLA CK CLA CK CLR CK CLR SCLKO Do Do 3 30 Rev A2 010518 Preliminary RF3322 Table 1 Serial Interface Control Word Format Description Sleep Mode Software Shutdown Test Bit Gain Control Bit 5 Gain Control Bit 3 Gain Control Bit 2 Gain Control Bit 1 Serial Bus Timing Diagram Tes TDATAH TDATAL ee A gt i i 1 i i i i j i f i i i h a i i i i i i i i i i i h i i i ae SEER REG Table 2 Timing Data Parameter Symbol Typ Max ae SCLK Pulsewidth T SCLK Period Setup Time SDA versus S CLK Setup Time CS versus S CLK Hold Time SDA versus S CLK Hold Time CS versus S CLK SCLK Pulsewidth High SCLK Pulsewidth Low Table 3 Programming State Exit Shutdown X TX Enable H X X TX Disable L X X Rev A2 010518 H High Voltage Logic L Low Voltage Logic X Don t Care Gain Control Data Must be Re Sent 3 31 LINEAR CATV AMPLIFIERS LINEAR CATV AMPLIFIERS
4. Shutdown enable can be set to be continuous on chip enabled by placing the SHDN jumper in the right hand position and placing the associated GND VCC jumper in the VCC position Shutdown enable can be set to continuous off chip disabled by placing the associated GND VCC jumper in the GND posi tion If a computer controlled signal is used J1 place the SHDN jumper in the left hand position SHDN O GND SHDN 5 Go SHDN IJI Eno O OO o O OO p OO O Y Ol vec O Vcc Ol vec Continuous ON Continuous OFF Software Controlled A B C Figure 2 SHDN Enable Configuration Vec Settings Vcc1 should be set to 5 0Vpc Evaluation Board Setup Equipment Needed Signal Generator Spectrum Analyzer Power Supply 5 0 V 6 300mA e RF3322 PCBA Serial Cable included with kit Standard PC Three Wire Bus Software Optional Equipment Variable Low Pass or Band Pass Filters Power Meter Second Signal Generator with Modulation for ACPR and IP2 IP3 Testing Arbitrary Wave Generator Two Channel Oscilloscope Software Setup To install the software you need a computer with the following 133MHz Pentium processor 16MB RAM Hard Drive with 5MB free space Free 25 pin LPT port VGA Monitor The software may be downloaded from www rfmd com by following the
5. bit PRBS pseudo random bit stream 0 25 alpha root cosine filter Tones at 40MHz and 40 2MHz Vour 54dBmV tone maximum gain OIP3 is therefore 84 dBmV IIP3 is 58dBmV Maximum Gain CW Maximum Gain CW Maximum Gain Maximum Gain Rev A2 010518 Preliminary RF3322 Specificati Parameter pee Condition Mim Typ Max AC Specifications cont d Output Step Size 0 8 1 0 1 1 dB Isolation in Transmit Disable 80 95 dBc Maximum Gain 20MHz Mode Output Noise Maximum Gain 37 30 dBmV 96dBc for a 59dBmV carrier in a 160kHz 160kHz bandwidth Minimum Gain 55 50 dBmV 64dBc for an 8dBmV carrier in a 160kHz 160kHz bandwidth Transmit Disabled 75 70 dBmV TXEN 0 160kHz TX EN Enable Time 0 5 1 0 uS Time for gain to reach 99 of final value See Note 1 TX EN Transient Duration 24 3 0 uS See Note 1 Output Switching Transients 5 10 mVp p Maximum Gain 3 5 mVp p Minimum Gain Output Impedance 255 300 345 Q Chip output impedance is nominally 300 0 Differential to single ended output conver sion to 75Q is performed in a balun with a 2 1 turns ratio corresponding to a 4 1 imped ance ratio Input Impedance 75 Q Differential Thermal Thetajc 28 C W Note 1 The enable time is determined by the value of the capacitor on pin 14 RAMP A higher capacitor value will increase the enable time but will reduce the transient voltage Rev A2 010518 3 29 LINEAR CATV AMPLIFIERS LINEAR CATV AMP
6. using the power meter accounting for 75 50 conversion losses Connect RFOUT to spectrum analyzer and adjust offset of the spectrum analyzer until the channel power displayed by the spectrum analyzer is equal to the channel power recorded in the previous step Channel bandwidth 200kHz Now use the spectrum analyzer to measure relative ACP this way the uncertainties in the spec trum analyzer power measurement are immaterial The ACP is measured in 200kHz channel bandwidths at a 220kHz offset i e from 20kHz to 220kHz outside the channel As you increase the input power you will notice a degradation of the ACP upper and lower bands Datasheet performance is measured at an input level of 34dBmV Transmit Turn On and Turn Off Transients Use an Arbitrary Waveform Generator set to a 3V square wave 5 duty cycle 120 Hz as the input to the transmit enable Set a signal generator to 10MHz 13 0dbm output power OdB offset Connect output of the signal generator to J2 RFIN of the PCB Remove the TXEN jumper and connect the arbitrary wave gen erator square wave output to the center pin of the TXEN 3 pin header Connect the output of the evalua tion board to the oscilloscope channel 1 Connect the TXEN signal from the arbitrary wave generator to channel 2 of the oscilloscope and trigger off of the ris ing edge As the TXEN line is sent the oscilloscope will trigger and capture the pulsed RFOUT signal This Rev A2 010518 will be di
7. 2 18 RF3322 4 Ny RES RED MICRO DEVICES Preliminary RF3322 CABLE REVERSE PATH PROGRAMMABLE GAIN AMPLIFIER Typical Applications Euro DOCSIS DOCSIS Cable Modems Home Networks CATV Set Top Boxes Automotive Mobile Multimedia Telephony Over Cable Coaxial and Twisted Pair Line Driver Product Description tots pi 0 0040 The RF3322 is a variable gain amplifier for use in CATV eo reverse path upstream applications It is DOCSIS com Es pliant for use in cable modems The gain control covers a gay co 58dB range and is serially programmable via three wire E Ed aw digital bus for compatibility with standard baseband ET h chipsets Amplifier shutdown and transmit disable modes ES m al so are software and hardware controlled The device is 0228 c placed into sleep mode via the serial control bus The Dimensions in inches device operates over the frequency band of 5MHz to sma f Logo 65MHz for use in current U S and European systems T Es The amplifier delivers up to 60dBmV at the output of the NOTES balun Gain is controllable in accurate 1dB steps The o n0 E UE device is provided in an industry standard QSOP 20 i rove toii EE A EET package 6 End tash not o exceed ooog parade a E
8. 5pF il 3 pe RF nO i gt gt SZ F er our 6 15 C11 a R5 C4 T 15 pF 75902 inF H7 14 n Tl C7 C9 CS O 8 13 220 pF 100 pF Gain Control i iain Control SDA O 9 and Serial Bus 12 J5 J6 PELO 10 uH 1H Shan 1 lt voo 3322410 2 2 3 3 GND 2 Place C5 and C6 as close to pin as possible F IMS 3 C1 is tantalum size code Y 4 All other components are 0603 size 5 Replace R6 with 0 Q resistor if 75 Q connector is used PCB Layout Considerations The RF3322 evaluation board can be used as a guide for the layout in your application Care should be taken in laying out the RF3322 in other applications The RF3322 will have similar results if the following guidelines are taken into con sideration Make sure underside of package is soldered to a good ground on the PCB Move C2 C9 C10 and C11 as close to T1 as possible Keep input and output traces as short as possible Ensure a good ground plane by using multiple vias to the ground plane Use a low noise power supply along with decoupling capacitors Rev A2 010518 3 33 LINEAR CATV AMPLIFIERS LINEAR CATV AMPLIFIERS RF3322 Preliminary Evaluation Board Layout Board Size 2 5 x 2 5 Board Thickness 0 058 Board Material FR 4 Multi Layer 0107RF 3322410 RF 4 MICRO DEVICES RF 3322PCBA 5 EVALUATION BOARD s
9. LIFIERS RF3322 Preliminary Pin Function Description Interface Schematic 1 GND jComettgoud yyy This pin is connected to the supply voltage and should be decoupled as close to GND1 as possible Connect to ground PGA RF ground Input pin This should be externally AC coupled to signal source Complementary input pin This should be externally coupled to signal Source For single ended use this pin should be AC coupled to ground through an impedance equivalent to the impedance driving V IN Connect to ground Serial bus enable Serial bus data input Serial bus clock input Connect to ground Ship shutdown pin Forcing a logic low causes all circuits to switch off and gain settings to be lost Not connected Turn on time is controlled by an external capacitor between this pin and ground Open collector output Connect to Vcc via balun primary Open collector output Connect to Vcc via balun primary Not connected Signal path enable pin Logic high turns on signal path Logic low turns off signal path but leaves serial bus active 19 VCC2 This pin is connected to the supply voltage and should be decoupled as close to GND2 as possible 20 GND2 Power amplifier bias ground Serial Bus Block Diagram
10. W to 58 and make sure TX Enable is checked The amplified signal should be dis played on the spectrum analyzer The harmonics can also be viewed with this setup As you change the GCW from 58 to 0 in steps of one there will be a 1 dB change in the output of the PCB ACPR Test Setup To test the ACPR of the RF3322 PCBA set modulation QPSK 2Bits Sym 160ksps 0 25 e PRBS 20bit Data Rev A2 010518 Preliminary RF3322 Set signal generator to 45MHz e 13 0dBm output power e OdB offset Connect 50MHz coaxial filter to output then to output cable Zero and calibrate the power meter Connect signal generator to power meter and set offset on signal gen erator until power meter reads 13 0dBm Make sure power meter reads the same 0 2dBm with modula tion enabled and disabled to verify power meter is measuring average power rather than peak power Check positioning of the jumpers on the board Refer to the PCBA section of this application note to verify proper positions Connect the output of the signal gen erator to J2 RFIN of the PCB Connect J7 RFOUT to the power meter Connect one end of the serial cable into the computer and the other end into P1 of the PCB Connect 5 0 Vpc into Vec and ground into GND Turn on the DC power and turn on RF and modulation from the signal generator Set the GCW to 58 and make sure TX Enable is checked Measure and record channel power at RFOUT
11. ca fii 30 35 40 45 50 55 60 Frequency MHz 3 35 LINEAR CATV AMPLIFIERS LINEAR CATV AMPLIFIERS RF3322 Preliminary Evaluation Kit General Description The RF3322 PCBA is a fully assembled evaluation board of the RF3322 reverse path high output power programmable gain amplifier useful for providing a demonstration of the RF3322 s functionality The RF3322 PCBA is a digitally controlled variable gain amplifier capable of driving a 75Q source The RF3322 is designed to send cable modem data with QPSK or QAM modulated format at frequencies between 5MHz and 65MHz The gain is controlled by an 7 bit serial data word which adjusts the output gain from 30dB to 28dB The kit includes a fully functional evaluation board along with a serial data cable and software The cable connecis directly to the parallel port of a standard PC The software is used to control the serially programma ble gain through a simple easy to understand user interface Input and output to the evaluation board is provided through 500 SMA connectors The input and output of the evaluation board is matched to 500 and connected through a balun for single ended operation This allows easy connection to test equipment but the evaluation board can easily be converted to a 750 input and out put or for differential input and output The output cir cuit is matched using a 2402 series resistor which is used to bring the load imp
12. directly to a spectrum analyzer Make sure the output of the signal generator is the same as the input read by the spectrum analyzer Adjust the offset of the spectrum analyzer until the signal out is the same as the signal in on the spectrum analyzer Turn off the RF and modulation Check positioning of the jumpers on the board Refer to the PCBA section of this applica tion note to verify proper positions Connect the output of the signal generator to J2 RFIN of the PCB Con nect J7 RFOUT to the spectrum analyzer Ensure that 3 38 Programmable Gain Amplifier Contr EI EG 1 i RF3322 Settings GainWord 29 y M A v Enable T Sleep Shutdown Automatic Gain Adjustment Every 5 Seconds C Cycle Send Last Neither Preset Gain Word Values a aj e Output 10011101 Close Figure 4 On Screen Display NOM w J RFA MICRO DEVICES you are accounting correctly for the losses in the 750 to 500 conversion at the output of the device there is an output voltage loss of 3 5dB for the evaluation board in its standard configuration see output stage circuit description Connect one end of the serial cable into the computer and the other end into J1 of the PCB Connect 5 0Vpg into V and ground into GND JP1 Turn on the DC power and turn on RF from the signal generator Set the GC
13. edance up to 750 when using standard 500 test equipment This will introduce a loss which must be accounted for in all measure ments see measurement section and evaluation board schematic for more detail PCBA Details Input Circuit The input to the RF3322 is differential and the imped ance is 750 However for ease of testing the evalua tion board has been changed to single ended and the impedance has been matched to 500 If a 75Q input is required simply replace the 500 SMA connector with a 750 F style connector and remove R4 and R5 Output Circuit The output of the RF3322 is differential and the imped ance is 3000 In normal applications this is converted into a single ended 750 output using a 2 1 voltage ratio transformer with a center tap on the secondary which supplies power to the output stage The evalua tion board is configured for use with 500 test equip ment This has been achieved with a 240 resistor in series with the output to increase the load seen by the 3 36 device to 750 This introduces a voltage loss of 3 5dB which must be accounted for in all measurements Some spectrum analyzers have a setting to account for this method of 750 testing e g on a Rhode amp Schwartz spectrum analyzer the input can be set to 750 RAZ and the loss is accounted for automati cally A more accurate way of making this measure ment is to use a 75Q spectrum analyzer or use a matching transformer or minimum loss pad T
14. eliable performance The exposed copper slug on the bottom of the package improves both thermal and electrical performance Since the RFIC is mounted directly on the thermal slug and the slug is soldered directly on the PCB the thermal resistance to the PCB is minimized Also the RF ground for the amplifier is established through this copper slug as it is soldered to the ground plane on the PCB This offers the least inductance ground path available Care must be taken when soldering these packages to the PCB They are currently considered JEDEC Level 5 for moisture sensitivity Therefore the parts must be handled in a dry environment prior to soldering as is specified in the JEDEC specification Specifically RFMD recommends the following procedure prior to assembly 1 Dry bake the parts at 125 C for 24 hours minimum Note the shipping tubes cannot withstand 125 C baking temperature 2 Parts delivered on tape and reel are already dry baked and dry packed These may be stored for up to one year but must be assembled within 48 hours after opening the bag 3 Assemble the dry baked parts within two days of removal from the oven 4 During this two day period the parts must be stored in humidity less than 6096 IMPORTANT If the two day period is exceeded then this procedure must be repeated prior to assembly 3 40 Rev A2 010518
15. his ensures that the source impedance seen by the equip ment is also 750 If a 759 output is required simply replace the 500 SMA connector J7 with a 75 F style connector and replace R5 with a 0O jumper The evaluation board is tested with a Coilcraft balun how ever additional baluns may be used as long as care is taken in modifying the decoupling capacitors around the balun These capacitors can greatly affect the har monic suppression Other baluns may be used but should be tested for second and third order harmonic suppression Transmit Enable The transmit enable can be set to continuous on by placing the TXEN jumper in the right hand position right hand position when viewing the top of the evalu ation board with the 25 pin connector closest to the viewer and placing the associated GND VCC jumper in the VCC position The transmit enable can be set to continuous off by placing the GND VCC jumper in the GNP position If a computer controlled signal is used J1 place the TXEN jumper in the left hand posi tion TX EN E VCC TXEN O vec TXEN 3 voc Pm FER ry PP oye elie onda agoi g O GND Q GND GND Continuous ON Continuous OFF Software Controlled A B C Figure 1 TX Enable Configuration Rev A2 010518 Preliminary RF3322 Shutdown Enable
16. ke changes to its products without notice RF Micro Devices does not Maximum Power Dissipation 0 5 W assume responsibility for the use of the described product s Maximum Ty 150 C Specification m Parameter P Unit Condition Min Typ Max Overall Vec 4 75V to 5 25V TXEN SHDN f V N 30dBmV rms differential output impedance 75O through a 2 1 transformer Typical performance is at Ta 25 C DC Specifications Supply Voltage Supply Current Maximum Gain Low Gain Transmit Disable Software Shutdown Sleep Logic High Voltage Logic Low Voltage Logic Leakage Current AC Specifications Voltage Gain Maximum Minimum 3dB Bandwidth Gain Control Word 58 Gain Control Word 35 TXEN 0 Bit 7 of gain control word FALSE SHDN 0 dB 5MHz to 42MHz Gain Control Word 58 dB 42MHz to 65MHz Gain Control Word 58 dB 5MHz to 42MHz Gain Control Word 0 dB 42MHz to 65MHz Gain Control Word 0 MHz Intended operating range is 5MHz to 65 MHZ 1dB Compression Point dBmV Maximum Input Level dBmV rms Modulated To meet distortion specifications Maximum Output Level dBmV rms Modulated Into 750 load at balun output all ACPR Output IM3 Output Third Harmonic Distortion F 20MHz Vour 59dBmV F 65MHz Voyr 59dBmV Output Second Harmonic Distortion F 20MHz Vour 59dBmV F 65MHz Vour 59dBmV 3 28 distortion tones lt 50dBc dBc Vin 34dBmV rms QPSK modulation Symbol rate 160ksps 2 bits per symbol 20
17. n The Automatic Gain Adjustment when set to Cycle will automatically cycle through all of the gain steps 0 58 in seconds at the rate set by the user The user may place the unit in sleep shut down and transmit enable disable modes by checking the corresponding box The bit pattern being sent to the PCBA is shown at the bottom of the screen See README_3322 txt file for proper pin signal mapping for the 25 pin interface 3 37 LINEAR CATV AMPLIFIERS LINEAR CATV AMPLIFIERS RF3322 Preliminary RF3322 PCBA Cable 6 TX Enable Line Ground 18 A 5 SHUTDOWN Line 14 CLK Line vu 13 Data Line e ae H Io CS Line 25 Pin D Connector Back View Figure 3 Cable Configuration Hardware Setup Gain and Harmonic Distortion Test Setup To test the gain of the RF3322 PCBA connect a low pass or band pass filter to the output of the signal gen erator Use a filter just above the frequency you want to test The filter is used to attenuate any harmonics out put by the signal generator Connect the signal genera tor to the power meter and measure the power Compare with modulation enabled and disabled to make sure the meter was measuring average rather than peak power No more than 0 2dB difference in power should be observed An offset on the signal gen erator may be needed to match the level shown on the power meter The signal generator should then be con nected
18. olis 000000000000 0000000000000 000000000 9 000000000000 000000000000 3 34 Rev A2 010518 Preliminary RF3322 Gain versus Frequency 30 0 AT nan RN ooo 20 0 e Gain Control Word 58 10 0 m Gain Control Word 29 a amp Gain Control Word 0 E q eo 0 0 7 NE Z E E R m m m m Hm EH E mm mi o 8 8 8 H m m o 8 E 10 0 20 0 La Lea AAA a A A 30 0 Anat 0 50 100 150 200 250 Frequency MHz Current versus Gain Control Word 135 125 T L E 115 E L S L 5 L 3 E 105 95 0 10 20 30 40 50 60 Gain Control Word Third Harmonic versus Frequency 0 e 65 MHz 40 m 42 MHz a 5 MHz 20 Third Harmonic dBc 8 i ETT Los 60 70 80 1 34 L3 ik j d 3 3 tr y bs 4 30 35 40 45 50 55 Frequency MHz Rev A2 010518 Voltage Gain dB Second Harmonic dBc Gain versus Gain Control Word 28 0 18 0 o S o 12 0 soda iso E aaa Ea da aaa d aia 0 10 20 30 40 50 60 Gain Control Word Second Harmonic versus Frequency 0 E L e 65 MHz 40 42 MHz L amp 5 MHz 20 30 40 50 60 70 T 1 pof oire fie e aaa ac aaa
19. se steps Select the Product Support tab Select Evaluation Board Information Select RF3322 Rev A2 010518 Unzip the file using WinZip 7 0 or higher http www winzip com Unzip to a temporary directory and run RF3322 exe The 7 bit Gain Control Word GCW in the data latch determines the gain setting in the RF3322 The gain control data SDA load sequence is initiated by a fall ing edge on CS The SDA is serially loaded MSB first into the 7 bit shift register at each rising edge of the clock While CS is low the data latch holds the previ ous data word allowing the gain level to remain unchanged After seven clock cycles the new data word is fully loaded and CS is switched high This enables the data latch and the loaded register data is passed to the gain control block with the updated gain value Also at this CS transition the internal clock is disabled thus inhibiting new serial input data Software and Cable Figure 3 shows the cable configuration Connect the cable into the LPT1 port of the computer running the software Connect the other end of the cable to the 25 pin connector of the evaluation board Executing the software RF3322 exe will produce the screen shown in Figure 4 The user may set the gain of the evaluation board by sliding the gain control switch to the desired gain setting Pressing the Preset Gain Value buttons automatically sets the gain of the unit to the value shown on the butto
20. splayed on the oscilloscope Measure the amount of time between 9096 of the TXEN turn on to where the output signal reaches 90 of full turn on This is defined as the transmit turn on time To measure the transient pulse replace the signal gen erator input with a 50 terminator and repeat the steps above Measure the size of the transient This can be affected by the Cramp capacitor C7 and the output balun and capacitor values around the balun Larger values of Cramp will decrease the transient voltage and increase the TX enable time PCB Layout Considerations The RF3322 Evaluation board can be used as a guide for the layout in your application Care should be taken in laying out the RF3322 in other applications The RF3322 will have similar results if the following guide lines are taken into consideration Make sure underside of package is soldered to a good ground on the PCB Move C2 C9 C10 and C11 as close to T1 as pos sible Keep input and output traces as short as possible Ensure a good ground plane by using multiple vias to the ground plane Use a low noise power supply along with decou pling capacitors 3 39 LINEAR CATV AMPLIFIERS LINEAR CATV AMPLIFIERS RF3322 Preliminary Special Handling Information for Shrunk Small Outline Package SSOP1 EPP Products These packages are considered JEDEC Level 5 for moisture sensitivity and require special handling to assure r

RF MICRO.DEVICES RF3322 handbook

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