IRAUDAMP16 70W/4Ω x 2 Channel Class D Audio Power Amplifier Using the IR4302 By Jun Honda, Liwei Zheng CAUTION: International Rectifier suggests the following guidelines for safe operation and handling of IRAUDAMP16 Demo board; Always wear safety glasses whenever operating Demo Board Avoid physical contact with exposed metal surfaces when operating Demo Board Turn off Demo Board when placing or removing measurement probes www.irf.com IRAUDAMP16 REV 1.0 Page 1 of 26 TABLE OF CONTENTS ........................................................ PAGE INTRODUCTION.................................................................................................................3 SPECIFICATIONS ..............................................................................................................3 CONNECTION SETUP .......................................................................................................4 CONNECTOR DESCRIPTION............................................................................................5 TEST PROCEDURES.........................................................................................................6 PERFORMANCE AND TEST GRAPHS .............................................................................7 THERMAL INFORMATION ..............................................................................................13 SCHEMATIC.....................................................................................................................17 BILL OF MATERIALS ......................................................................................................20 PCB SPECIFICATIONS....................................................................................................22 REVISION CHANGES DESCRIPTIONS ..........................................................................26 www.irf.com IRAUDAMP16 REV 1.0 Page 2 of 26 Introduction The IRAUDAMP16 reference design is a two-channel, 70W/ch (4Ω/±23V; no heatsink)/ 130W/ch (4Ω/±31V; *with heatsink) half-bridge Class D audio power amplifier. This reference design demonstrates how to use the IR4302 IC, implement protection circuits, and design an optimum PCB layout using PowIRaudio integrated Class D IC. This reference design does not require additional heatsink or fan cooling for normal operation (one-eighth of continuous rated power).The reference design provides all the required housekeeping power supplies for ease of use. The two-channel design is scalable for power and the number of channels. Applications AV receivers Home theater systems Mini component stereos Powered speakers Sub-woofers Musical Instrument amplifiers Car audio amplifiers Features Output Power: Multiple Protection Features: PWM Modulator: 70W x 2 channels (10%THD+N 4Ω load; no heatsink), 130W x 2 channels (10%THD+N 4Ω load; *with heatsink), Over-current protection (OCP), high side and low side Over-voltage protection (OVP), Under-voltage protection (UVP), high side and low side DC-protection (DCP), Over-temperature protection (OTP) Self-oscillating half-bridge topology with optional clock synchronization Specifications General Test Conditions (unless otherwise noted) ±13V~±23V Supply Voltages ±13V~±31V Load Impedance 4-2Ω Self-Oscillating Frequency 400kHz Gain Setting 23.5dB Notes / Conditions Bipolar power supply; without heatsink Bipolar power supply; *with heatsink Resistive load No input signal, Adjustable 1Vrms input yields rated power Electrical Data IR Devices Used Modulator Typical Notes / Conditions IR4302 PowIRaudio integrated Class D IC Self-oscillating, second order sigma-delta modulation, analog input 57W 1kHz, 4Ω load, without heatsink 105W 1kHz, 4Ω load, *with heatsink 40W 1kHz, 3Ω load, without heatsink Output Power CH1-2: (1% THD+N) 80W 1kHz, 3Ω load, *with heatsink 32W 1kHz, 2Ω load, without heatsink 56W 1kHz, 2Ω load, *with heatsink www.irf.com IRAUDAMP16 REV 1.0 Page 3 of 26 70W 130W 50W 100W 40W 70W 4-2Ω ±80mA 4W 0.015% 250V 96% Output Power CH1-2: (10% THD+N) Rated Load Impedance Idling Supply Current Total Idle Power Consumption Distortion Residual Noise Channel Efficiency 1kHz, 4Ω load, without heatsink 1kHz, 4Ω load, *with heatsink 1kHz, 3Ω load, without heatsink 1kHz, 3Ω load, *with heatsink 1kHz, 2Ω load, without heatsink 1kHz, 2Ω load, *with heatsink Resistive load No input signal No input signal THD+N @ 30W, 4Ω IHF-A weighted, AES-17 filter Single-channel driven, 70W/*130W(* with heatsink), Class D stage *Heatsink’s Digikey part#:294-1085-ND with thermal pad BER161-ND Connection Setup 13V~23V*, 5A DC supply 13V~23V*, 5A DC supply * With heatsink Power supply can go up to +/-31V 250W, Non-inductive Resistors 4 Ohm 4 Ohm SW1:PWM Shutdown/MUTE G J3 CH1 Output J4 S1 CH2 Output J7 J9 IR4302 Protection J5 J6 CH1 Input J8 CH2 Input Normal S2 S3 Volume R113 Audio Signal Generator Figure 1 Typical Test Setup www.irf.com IRAUDAMP16 REV 1.0 Page 4 of 26 Connector Description CH1 IN CH2 IN POWER CH1 OUT CH2 OUT EXT CLK DCP OUT J6 J5 J7 J3 J4 J8 J9 Analog input for CH1 Analog input for CH2 Positive and negative supply (+B / -B) Output for CH1 Output for CH2 External clock sync DC protection relay output Audio Precision-Setup: IRAUDAMP16 and Audio Precision shall be connected according to the Figureure below: A B Audio Precision A B Bal inputs Gen 4 Ohms + + - - 4 Ohms Power Supply * With heatsink Power supply can go up to +/-31V +/-23V* +/35V + - + G - + CH1 - CH2 DB_209_Rev IR4302_DB2.0 CH1 CH2 Amp5 AMP16 Figure 2 www.irf.com IRAUDAMP16 REV 1.0 Page 5 of 26 Test Procedures Test Setup: 1. Connect 4-250 W dummy loads to output connectors (J3 and J4 as shown on Figure 1) and parallel it with input of Audio Precision analyzer (AP). 2. Connect Audio Signal Generator to J6 and J5 for CH1 and CH2 respectively (Ap). 3. Set up the dual power supply with voltages of ±13V~±23V (up to ±31V with heatsink); set current limit to 5A. 4. Set switch S1 to middle position (self oscillating). 5. Set volume level knob R130 fully counter-clockwise (minimum volume). 6. Connect the dual power supply to J7. as shown on Figure 1 Power up: 7. Turn ON the dual power supply. The ±B supplies must be applied and removed at the same time. 8. Red LED (Protection) should turn on almost immediately and turn off after about 3s. 9. Green LED (Normal) then turns on after red LED is extinguished and should stay on. 10. Quiescent current for the positive supply should be 60mA 10mA at +23V. 11. Quiescent current for the negative supply should be 80mA 10mA at –23V. 12. Push S3 switch (Trip and Reset push-button) to restart the sequence of LEDs indicators, which should be the same as noted above in steps 9-10. Functionality Audio Tests: 13. Apply 1V RMS at 1 kHz sinusoidal signal from the Audio Signal Generator. 14. Turn control volume up (R130 clock-wise) to obtain an output reading of 57Watts. 15. For all subsequent tests as shown on the Audio Precision graphs below (Figure 3Figure12), the measurements are taken across J3 and J4 with an AES-17 Filter. Observe that a 1 VRMS input generates an output around THD+N=1% power level. 16. Sweep the audio signal voltage from 15 mVRMS to 1 VRMS. 17. Monitor the output signals at J3/J4 with an oscilloscope. The waveform must be a non distorted sinusoidal signal with input signal below 1Vrms. www.irf.com IRAUDAMP16 REV 1.0 Page 6 of 26 Performance and Test Graphs Power vs THD+N (without heatsink) Test Conditions: VBus = ± 23V Input Signal = 1 KHz Load Impedance = 4 ohms Set Gain = 1% clipping 57W THD+N vs Power: Adjust pot level to 57W output with 1V rms level input 10 5 1 0.5 % 0.1 0.05 0.02 0.01 0.002 0.001 100m 200m 500m 1 2 5 10 20 50 100 W Sweep Trace Color Line Style Thick Data Axis Comment 1 1 1 3 Blue Magenta Solid Solid 2 2 Anlr.THD+N Ratio Anlr.THD+N Ratio Left Left CH1 - 4 Ohms CH2 - 4 Ohms Figure 3 www.irf.com IRAUDAMP16 REV 1.0 Page 7 of 26 200 Test Conditions: VBus = ± 18V Input Signal =1 KHz Load Impedance = 3 ohms Set Gain = 1% clipping 47W THD+N vs Power: Adjust pot level to 47W output with 1V rms level input 10 5 1 0.5 % 0.1 0.05 0.02 0.01 0.002 0.001 100m 200m 500m 1 2 5 10 20 50 100 W Sweep Trace Color Line Style Thick Data Axis Comment 1 1 1 3 Blue Magenta Solid Solid 2 2 Anlr.THD+N Ratio Anlr.THD+N Ratio Left Left CH1 - 3 Ohms CH2 - 3 Ohms Figure 4 Test Conditions: VBus = ± 13V Input Signal =1 KHz Load Impedance = 2 ohms Set Gain = 1% clipping 35W THD+N vs Power: Adjust pot level to 35W with 1V rms level input 10 5 1 0.5 % 0.1 0.05 0.02 0.01 0.002 0.001 100m 200m 500m 1 2 5 10 20 W Sweep Trace Color Line Style Thick Data Axis Comment 1 1 1 3 Blue Magenta Solid Solid 2 2 Anlr.THD+N Ratio Anlr.THD+N Ratio Left Left CH1 - 2 Ohms CH1 - 2 Ohms Figure 5 www.irf.com IRAUDAMP16 REV 1.0 Page 8 of 26 50 Power vs THD+N (with heatsink) Test Conditions: VBus = ± 31V Input Signal =1 KHz Load Impedance = 4 ohms Set Gain = 1% clipping 100W THD+N vs Power: Adjust pot Level to 100W output with 1V RMS level input 10 5 2 1 0.5 0.2 0.1 % 0.05 0.02 0.01 0.005 0.002 0.001 100m 200m 500m 1 2 5 10 20 50 100 200 W S weep Trac e Color Line S ty le Thic k Data A x is Com m ent 1 1 1 3 B lue M agenta S olid S olid 2 2 A nlr.THD+ N Ratio A nlr.THD+ N Ratio Left Left CH1 - 4 O hm s CH2 - 4 O hm s Figure 6 Test Conditions: VBus = ± 24.5V Input Signal =1 KHz Load Impedance = 3 ohms Set Gain = 1% clipping 85W THD+N vs Power: Adjust pot Level to 85W output with 1V RMS level input 10 5 2 1 0.5 0.2 % 0.1 0.05 0.02 0.01 0.005 0.002 0.001 100m 200m 500m 1 2 5 10 20 50 100 W S weep Trac e Color Line S ty le Thic k Data A x is Com m ent 1 1 1 3 B lue M agenta S olid S olid 2 2 A nlr.THD+ N Ratio A nlr.THD+ N Ratio Left Left CH1 - 3 Ohm s CH2 - 3 Ohm s Figure 7 www.irf.com IRAUDAMP16 REV 1.0 Page 9 of 26 Test Conditions: VBus = ± 17.5V Input Signal =1 KHz Load Impedance = 2 ohms Set Gain = 1% clipping 62W THD+N vs Power: Adjust pot Level to 62W output with 1V RMS level input 10 5 2 1 0.5 0.2 % 0.1 0.05 0.02 0.01 0.005 0.002 0.001 100m 200m 500m 1 2 5 10 20 50 100 W Sweep Trace Color Line Style Thick Data Axis Comment 1 1 1 3 Blue Magenta Solid Solid 2 2 Anlr.THD+N Ratio Anlr.THD+N Ratio Left Left CH1 - 2 Ohms CH2 - 2 Ohms Figure 8 Frequency Response Test Conditions: VBus = ± 23V, 18V, 13V Set Output = 1V Load Impedance = 4, 3, 2 ohms +4 T +2 +0 d B r -2 -4 A -6 -8 -10 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k 200k Hz Sweep Trace Color Line Style Thick Data Axis Comment 1 3 4 1 1 1 Cyan Yellow Red Solid Solid Solid 2 2 2 Anlr.Level A Anlr.Level A Anlr.Level A Left Left Left Ch1 2ohm +-17.5V ±13V Ch1 4ohm +-31V ±23V ±18V Ch1 3ohm +-24.5V Figure 9 www.irf.com IRAUDAMP16 REV 1.0 Page 10 of 26 Test Conditions: VBus = ± 31V, 24.5V, 17.5V Set Output = 1V Load Impedance = 4, 3, 2 ohms Tested without Heat sink +4 T +2 +0 d B r -2 -4 A -6 -8 -10 20 50 100 200 500 1k 2k 5k 10k 20k 50k 100k 200k Hz Sweep Trace Color Line Style Thick Data Axis Comment 1 2 3 1 1 1 Cyan Green Yellow Solid Solid Solid 2 2 2 Anlr.Level A Anlr.Level A Anlr.Level A Left Left Left Ch2 2ohm +-17.5V Ch2 4ohm +-31V Ch2 3ohm +-24.5V Figure 10 Noise Floor Test Conditions: VBus = ± 23V Load Impedance = 4 ohms Set Gain = 1% clipping No Input Signal +20 +0 -20 -40 d B V -60 -80 -100 -120 -140 10 20 50 100 200 500 1k 2k 5k 10k 20k Hz Sweep Trace Color Line Style Thick Data Axis Comment 1 1 1 2 Red Blue Solid Solid 1 1 Fft.Ch.1 Ampl Fft.Ch.2 Ampl Left Left CH1 CH2 Figure 11 www.irf.com IRAUDAMP16 REV 1.0 Page 11 of 26 Noise Floor with 1Vrms Output Test Conditions: VBus = ± 23V Output = 1Vrms @ 1 KHz Load Impedance = 4 ohms Set Gain = 1% clipping +0 -20 -40 d B V -60 -80 -100 10 20 50 100 200 500 1k 2k 5k 10k 20k Hz Sweep Trace Color Line Style Thick Data Axis Comment 1 1 1 2 Magenta Red Solid Solid 1 1 Fft.Ch.1 Ampl Fft.Ch.2 Ampl Left Left Ch1 4ohm Ch2 4ohm Figure12 Efficiency 100.0% 90.0% 80.0% Efficiency 70.0% 60.0% 50.0% 40.0% Amp16 +/-31V 4ohms 30.0% 20.0% 10.0% *Tested with option heatsink 0.0% 0 20 40 60 80 100 120 140 160 Power (W) Figure13 www.irf.com IRAUDAMP16 REV 1.0 Page 12 of 26 Thermal Information 1) 1/8 Po Thermal information for IRAUDAMP16 Conditions: Tamb=25°C natural convection cooling Both Channel Driven 1/8Po continuous 30mins Temperature measured by infrared camera IR4302’s temperature saturated ≤85°C within 30minutes Figure14 load impedance 4Ω load 3Ω load 2Ω load 1/8 Power(W) THD=1% power(W) 57 70 *13.125 *105 *130 5 40 50 *10 *80 *100 6.375 32 40 *56 *70 *11.125 *With heatsink (Digikey part#:294-1085-ND) www.irf.com THD=10% power(W) 7.125 IRAUDAMP16 REV 1.0 Page 13 of 26 2) Peak Power duration (no heatsink) Test conditions: Vbus=+/-23V for 4 ohms, 18V for 3 ohms, 13V for 2 ohms 1kHz sine wave signal input ; Both channels driven Fsw=400kHz 350 IR4302 +/-23V 4-ohm BCD No Htsnk 300 D u ratio n (se c) 250 200 w/ OTP triggering 150 100 50 100 90 80 70 60 50 40 30 20 10 0 0 Output Power (W) / CH Figure15 350 IR4302 +/-18V 3-ohm BCD No Htsnk 300 D u ratio n (se c) 250 200 w/ OTP triggering 150 100 50 90 80 70 60 50 40 30 20 10 0 0 Output Power (W) / CH Figure16 www.irf.com IRAUDAMP16 REV 1.0 Page 14 of 26 350 IR4302 +/-13V 2-ohm BCD No Htsnk 300 D u ratio n (se c) 250 200 w/ OTP triggering 150 100 50 60 50 40 30 20 10 0 0 Output Power (W) / CH Figure17 3) Peak Power duration (with heatsink) Test conditions: Vbus=+/-31V for 4 ohms, 24.5V for 3 ohms, 17.5V for 2 ohms 1kHz sine wave signal input ; Both channels driven Test results: 650 +/-31V 4-ohm 8.5C/W heatsink 600 550 Duration (sec) 500 450 400 350 300 w/ OTP triggering 250 w/ OCP triggering 200 150 100 50 200 180 160 140 120 100 80 60 40 20 0 0 Power (W) Figure18 www.irf.com IRAUDAMP16 REV 1.0 Page 15 of 26 +/-24.5V 3-ohm 8.5C/W heatsink 200 180 160 140 120 w/ OCP triggering 100 80 60 40 20 w/ OTP triggering 0 D uration (sec) 650 600 550 500 450 400 350 300 250 200 150 100 50 0 Power (W) Duration (sec) Figure19 650 600 550 500 450 400 350 300 250 200 150 100 +/-17.5V 2-ohm 8.5C/W heatsink w / OTP triggering w/ OCP triggering 200 180 160 140 120 100 80 60 40 20 0 50 0 Power (W) Figure20 www.irf.com IRAUDAMP16 REV 1.0 Page 16 of 26 4) Heatsink installation Heatsink Thermal pad Digikey part# 294-1085-ND BER161-ND 294-1085-ND BER161-ND Figure21 www.irf.com IRAUDAMP16 REV 1.0 Page 17 of 26 Schematic Class D, Daughter Board IR4302 Module Schematic -B AMP16 SCH_DB_4302 Rev1.3 C17 NC D4 Positive Bus 1N4148 D2 CH2 GND1 1 10uF,10V 8 C7 2.2nF,50V 1nF 10 C1 R5 C5 SD 100R D5 24 VP2 25 VS2 CSH2 VB2 26 27 29 O R15 1R CH1 FAULT NC 13 10K D1 7 8 9 VCC 10 11 12 1N4148 SD A26568-ND CH1 IN-2 -B 20 VS1 CSD 12 VAA J1B VSS GND2 Negative Bus 21 VN1 R9 DS2 -B -B COMP1 11 C9 10uF,16V SD 22 IN-1 O 2.2nF,50V VS2 IN+1 9 2.7k 1% A26570-ND VCC VS1 620R R7 -B Negative Bus VAA VB1 10R R3 5 6 7 8 23 31 -B 7 IN-1 1 2 3 4 IC1 IR4302 VN2 VSS 18 +5V CH2 CH2 O J2B GND 6 C3 VAA R1 C4 10uF,10V -5V VCC R2 10R 0.1uF,100V IN+2 5 VSS C16 CH2 Output to LPF2 IN-2 4 620R 0.1uF R16 1R 17 R6 33K C12 4.7R COMP2 3 1nF 14 2.7k 1% 2.2nF,50V C8 R12 CLIP 2 C6 2.2nF,50V CSH1 IN-2 10K C2 16 VAA R4 COM R8 15 DS1 COM NC 30 A26568-ND VAA 28 1N4148 CH1 O J2A VP1 4 5 6 NC 1 2 3 C14 0.1uF 19 IN-1 J1A VSS +B R14 9 13 10 14 11 15 12 16 C15 0.1uF,100V R11 C11 4.7R 0.1uF R13 +B A26570-ND C13 0.1uF CH1 Output to LPF1 33K D3 +B R10 C10 Positive Bus 1N4148 4.7R R17 10uF,16V 10K -B DS3 Liz Zheng Figure22 Class D, Mother Board Control Volume and Power Supplies Schematic C19 R39 +5V 470 2.2uF,16V C15 R27 R17 +B CLK 47R 33pF 74AHC1G04 Control Volume U3 22k CH1 Feedback C5 10uF, 50V R13 IN-1 3.3K R55 0.0 C109 +5V C107 4.7uF, 16V R108 8 7 6 C108 10nF, 50V 5 VSS VDD VR0 CS VR1 1 3 SDATAI 47R R8 47R R9 4 SIMUL R7 5 6 47R R11 7 47R VA- DGRD VA+ SCLK AOUTR SDATAO AGNDR 8 MUTE AOUTL VD+ C1 SCLK R10 AGNDL SDATAI 4 10uF, 50V 3310S06S AINL CS 3 10R +5V ZCEN 2 R3 100R 100K U_? 1 2 CS SDATA CLK R1 J5 4.7uF, 16V U_2 MUTE CS3310 AINR R33 47k 1% Audio in +5V R71 OPEN 4 5 6 16 15 1 2 3 C17 150pF, 500V -5V 10 9 R14 R4 100R R2 R58 100K 7 8 9 -5V C6 10uF, 50V 3.3K 10 11 12 CH2 IN R72 VCC SD R56 0.0 1 2 3 4 -B C16 -B +B R32 R34 47k 1% 1K 22uH 47R 4.7K 33pF 74AHC1G04 CH2 OUT D6 CH2 O C24 C28 D8 R48 0.47uF, 400V R50 2.2k 10, 1W C18 150pF, 500V 470 R28 C32 1000uF,50V L2 R40 2.2uF,16V +B C34 OPEN Chassis Gnd VCC CH2 Feedback IN-2 5 6 7 8 R57 100K J4 1 2 OPEN -B R18 C26 CLK R107 C31 1000uF,50V 22k 0.1uF, 400V U4 R106 47K R105 10R VCC Heat Sink HS1 GND Z104 15V +5V Power Supply VCC Power Supply Vout Z101 R101 R102 +B U_4 4.7V 47R, 1W ZM4732ADICT 47R, 1W Vout C101 C106 10uF, 50V C105 10uF, 50V -5V Power Supply +5V MC78M05 Vin 10uF, 50V Z102 R103 U_5 R104 -B 4.7V 47R, 1W ZM4732ADICT D101 MA2YD2300 C102 10uF, 50V 47R, 1W -5V MC79M05 IN OUT D102 MA2YD2300 GND U_6 MC78M12 Vin GND Q101 FX941 C103 10uF, 50V C104 10uF, 50V -B Figure23 www.irf.com +35V Gnd -35V J2B J1B OPEN 2 1 3 C33 OPEN Trace under J7 +5V R6 C3 10uF, 50V +5V MMBT5401 J7 J2A 4.7R 4.7R 11 J6 12V C25 0.1uF, 400V IR430X_ MODULE -5V 12 C20 Q102 +B +B 13 + CH1 - OPEN R49 2.2k 10, 1W J3 1 2 C27 D7 R47 -B 9 13 10 14 11 15 12 16 OC CH1 OUT D5 C23 0.47uF, 400V J1A C2 10uF, 50V R5 14 Audio in Z103 22uH CH1 O 1K CH1 IN +5V 100K VCC UVP L1 R31 IRAUDAMP16 REV 1.0 Page 18 of 26 + CH2 - Class D, Mother Board Clock and House Keeping Schematic +B SD R143 10K SW-3WAY_A-B S3A R147 47k +5V I E S Q111 SW S2 1N4148 R110 100k C112 1200pF, 50V 100pF, 50V C111 +5V 47k D105 R138 R111 10K R112 820R 4.7k CStart 1N4148 D107 C117 1N4148 100uF, 16V VCC 1Y 6A 2A 6Y 2Y 5A 3A 5Y 3Y 4A GND 4Y DCP R145 47K R144 UVP 10k Q109 Q110 MMBT5551 R141 47k MMBT5551 U_3 1A R146 47K Q103 -B SW R136 68k R116 47R R114 100R Z108 8.2V 10nF, 50V 74HC14 Q108 +5V J8 BNC A24497 R118 1k EXT. CLK NORMAL MUTE R125 10K Q106 R134 10k R126 100K MMBT5401 Q105 R137 MMBT5551 R130 47K 47k R119 1k Trip and restart R135 82k MMBT5551 R115 47R 10uF, 50V C114 CLK CLK OVP +B C115 S E I S3B 100pF, 50V 5K POT S1 C119 SW-PB 0.1uF, 50V DC protection PROTECTION CH2 O SW-3WAY_A-B R113 CH1 O C113 MMBT5551 Z107 11V R149 47K Z105 36V OT R148 10k R120 100R R140 10k R139 Z106 18V OT SP MUTE D103 1nF, 50V R142 68k D106 1N4148 MMBT5401 SW_H-L R109 1K C110 1 2 DCP D104 1N4148 MUTE R117 R131 47K -5V R128 6.8k R124 10k Q104 47R R122 47k C116 100uF, 16V R121 47k R123 DC_PS 1K R150 +B 47k MMBT5401 R151 47k R129 6.8k R133 47k Q112 MMBT5551 R127 6.8k Q107 1 2 3 Z109 8.2V -5V +5V MMBT5551 R132 47k 6 5 4 J9 2 1 PVT412 P1 -B . Figure24 www.irf.com IRAUDAMP16 REV 1.0 Page 19 of 26 IRAUDAMP16 Bill of Materials IRAUDAMP16 Daughter Board BOM No Quantity Vendor 1 490-1500-1-ND Part Number C1, C2, C5, C6 Designator CAP CER 2200PF 50V 10% X7R 0603 Description 4 Digikey 2 587-2668-1-ND C3, C4 CAP CER 10UF 10V X7R 10% 0805 2 Digikey 3 399-1082-1-ND C7, C8 CAP 1000PF 50V CERAMICX7R 0603 2 Digikey 4 490-5519-1-ND C9, C10 CAP CER 10UF 16V X6S 0805 2 Digikey 5 445-1418-1-ND C13, C14, C11, C12 CAP CER .10UF 100V X7R 10% 0805 4 Digikey 6 445-1377-1-ND C15, C16 CAP CER .1UF 100V X7R 10% 1206 2 Digikey 7 1N4148W-FDICT-ND D1, D2, D3, D4, D5 DIODE SWITCH 100V 400MW SOD123 5 Digikey 8 160-1183-1-ND DS1(CLIP) LED GREEN CLEAR 0603 SMD 1 Digikey 9 160-1181-1-ND DS2(FAULT) LED RED CLEAR 0603 SMD 1 Digikey 10 160-1646-1-ND DS3(ON) LED 468NM BLUE CLEAR 0603 SMD 1 Digikey 11 IR4302 IC1 2 CH PowIRaudio integrated Class D IC 1 IR 12 A26568-ND J1A, J1B CONN HEADER VERT 6POS .100 30AU 2 Digikey 13 A26570-ND J2A, J2B CONN HEADER VERT .100 8POS 30AU 2 Digikey 14 RMCF0603JT10R0CT-ND R1, R2 RES 10 OHM 1/10W 5% 0603 SMD 2 Digikey 15 RMCF0603FT2K70CT-ND R3, R4 RES 2.7K OHM 1/10W 1% 0603 SMD 2 Digikey 16 RMCF0603JT100RCT-ND R5 RES 100 OHM 1/10W 5% 0603 SMD 1 Digikey 17 RHM620GCT-ND R6, R7 RES 620 OHM 1/10W 5% 0603 SMD 2 Digikey 18 RHM10KGCT-ND R8, R9, R17 RES 10K OHM 1/10W 5% 0603 SMD 3 Digikey 19 RMCF0603JT4R70CT-ND R10, R11, R12 RES TF 1/10W 4.7 OHM 5% 0603 3 Digikey 20 RHM33KGCT-ND R13, R14 RES 33K OHM 1/10W 5% 0603 SMD 2 Digikey 21 311-1.0ARCT-ND R15, R16 RES 1.0 OHM 1/8W 5% 0805 SMD 2 Digikey 294-1085-ND Heatsink HEATSINK TRIPLE BLACK TO-220 1 Digikey 1/6 Digikey *22 *23 BER161-ND Thermal Pad THERMAL PAD .020" 4X4" GAPPAD *Heatsink is an option for IRAUDAMP16 to deliver high power up to 130W/4Ω IRAUDAMP16 Mother Board BOM No Part No 1 565-1106-ND 2 565-1103-ND 3 478-1281-1-ND 4 338-2598-ND 5 6 Designator C1, C5, C6, C101, C102, C103, C104, C105, C106, C115 Description # Vender CAP ALUM 10UF 50V 20% RADIAL 10 Digikey C2, C3 CAP ALUM 2.2UF 50V 20% RADIAL 2 Digikey C15, C16 CAP CER 33PF 100V 5% NP0 0805 2 Digikey C17, C18 CAP MICA 150PF 500V 5% RADIAL 2 Digikey PCC1931CT-ND C19, C20 CAP CER 2.2UF 16V 10% X7R 1206 2 Digikey PCC104BCT-ND C119 CAP CER 0.1UF 50V 10% X7R 1206 1 Digikey 7 495-1315-ND C23, C24 CAP FILM 0.47UF 400VDC RADIAL 2 Digikey 8 495-1311-ND C25, C26 CAP FILM 0.1UF 400VDC RADIAL 2 Digikey 9 565-1114-ND C31, C32 CAP ALUM 1000UF 50V 20% RADIAL 2 Digikey 10 PCC2323CT-ND C107, C109 CAP CER 4.7UF 16V 10% X5R 0805 2 Digikey 11 PCC103BNCT-ND C108, C114 CAP CER 10000PF 50V 10% X7R 0805 2 Digikey 12 PCC102CGCT-ND C110 CAP CER 1000PF 50V 5% NP0 0805 1 Digikey 13 PCC101CGCT-ND C111, C113 CAP CER 100PF 50V 5% NP0 0805 2 Digikey 14 478-1372-1-ND C112 CAP CER 1200PF 50V 10% X7R 0805 1 Digikey 15 565-1037-ND C116, C117 CAP ALUM 100UF 16V 20% RADIAL 2 Digikey www.irf.com IRAUDAMP16 REV 1.0 Page 20 of 26 16 1N4148W-FDICT-ND D103, D104, D105, D106, D107 DIODE SWITCH 100V 400MW SOD123 5 Digikey 17 MURA120T3GOSCT-ND D5, D6, D7, D8 DIODE ULTRA FAST 1A 200V SMA 4 Digikey 18 MA2YD2300LCT-ND D101, D102 DIODE SCHOTTKY 25V 1.0A MINI-2P 2 Digikey 19 294-1086-ND HS1 HEATSINK HORZ SIX BLACK TO-220 1 Digikey 20 A32934-ND J1A, J1B CONN RECEPT 6POS .100 VERT DUAL 2 Digikey 21 A32935-ND 277-1271-ND or 6511714971 J2A, J2B CONN RECEPT 8POS .100 VERT DUAL 2 J3, J4 Digikey Digikey or Mouser 22 CONN TERM BLOCK 2POS 9.52MM PCB 2 J5, J6 CONN RCA JACK R/A BLUE PCB 2 24 CP-1422-ND 277-1272-ND or 6511714984 J7 CONN TERM BLOCK 3POS 9.52MM PCB 1 Digikey Digikey or Mouser 25 A32248-ND J8 CONN JACK BNC R/A 50 OHM PCB TIN 1 Digikey 26 ED1567 J9 TERMINAL BLOCK 7.50MM VERT 2POS 1 Digikey 27 7G14A-220M-B L1, L2 Class D inductor, 22uH 2 Inductors, Inc 23 911-1D14A-220M 28 Mouser 7G17A-220M-B Inductors, Inc 911-1D17A-220M Mouser 160-1143-ND NORMAL LED 3MM GREEN TRANSPARENT 1 Digikey 29 PVT412PBF-ND P1 IC RELAY PHOTOVO 400V 140MA 6DIP 1 Digikey 30 160-1140-ND PROTECTION LED 3MM HI-EFF RED TRANSPARENT 1 Digikey 31 FCX491CT-ND TRANSISTOR NPN 60V 1A SOT-89 1 Digikey 32 MMBT5401-FDICT-ND TRANS PNP 150V 350MW SMD SOT23-3 4 Digikey 33 MMBT5551-FDICT-ND TRANS NPN 160V 350MW SMD SOT23-3 7 Digikey 34 P100KACT-ND Q101 Q102, Q104, Q106, Q111 Q103, Q105, Q107, Q108, Q109, Q110, Q112 R1, R2, R57, R58, R110, R126 RES 100K OHM 1/8W 5% 0805 SMD 6 Digikey 35 P100ACT-ND R3, R4, R114 RES 100 OHM 1/8W 5% 0805 SMD 3 Digikey 36 P4.7ECT-ND RESISTOR 4.7 OHM 1/4W 5% 1206 2 Digikey 37 P47ACT-ND R5, R6 R7, R8, R10, R11, R27, R28, R115, R116, R117 RES 47 OHM 1/8W 5% 0805 SMD 9 Digikey 38 P10ACT-ND R9, R105 RES 10 OHM 1/8W 5% 0805 SMD 2 Digikey 39 P3.3KACT-ND R13, R14 RES 3.3K OHM 1/8W 5% 0805 SMD 2 Digikey 40 P22KACT-ND RES 22K OHM 1/8W 5% 0805 SMD 2 Digikey 41 P47KACT-ND R17, R18 R106, R121, R122, R130, R131, R132, R133, R137, R139, R141, R145, R146, R147, R149, R150, R151 RES 47K OHM 1/8W 5% 0805 SMD 16 Digikey 42 P0.0ACT-ND R55, R56 RES 0.0 OHM 1/8W 0805 SMD 2 Digikey 43 P470ACT-ND R39, R40 RES 470 OHM 1/8W 5% 0805 SMD 2 Digikey 44 P100ECT-ND R120 RES 100 OHM 1/4W 5% 1206 SMD 1 Digikey 45 PT47KAFCT-ND R31, R32 RES 47.0K OHM 1W 1% 2512 SMD 2 Digikey 46 P1.0KECT-ND RES 1.0K OHM 1/4W 5% 1206 SMD 2 Digikey 47 P1.0KACT-ND R33, R34 R109, R118, R119, R123 RES 1.0K OHM 1/8W 5% 0805 SMD 4 Digikey 48 PT10XCT R47, R48 RES 10 OHM 1W 5% 2512 SMD 2 Digikey 49 P2.2KECT-ND RES 2.2K OHM 1/4W 5% 1206 SMD 2 Digikey 50 PT47XCT-ND R49, R50 R101, R102, R103, R104 RES 47 OHM 1W 5% 2512 SMD 4 Digikey 51 P4.7KACT-ND R107, R138 RES 4.7K OHM 1/8W 5% 0805 SMD 2 Digikey 52 CT2265-ND R108 POT 10K OHM 1/8W CARB VERTICAL 1 Digikey 53 P10KACT-ND R111, R124, R125, RES 10K OHM 1/8W 5% 0805 SMD 8 Digikey www.irf.com IRAUDAMP16 REV 1.0 Page 21 of 26 R134, R140, R143, R144, R148 54 P820ACT-ND R112 RES 820 OHM 1/8W 5% 0805 SMD 1 Digikey 55 3362H-502LF-ND R113 TRIMMER 5K OHM 0.5W TH 1 Digikey 56 P6.8KECT-ND R127, R128, R129 RES 6.8K OHM 1/4W 5% 1206 SMD 3 Digikey 57 P82KACT-ND R135 RES 82K OHM 1/8W 5% 0805 SMD 1 Digikey 58 P68KACT-ND R136, R142 RES 68K OHM 1/8W 5% 0805 SMD 2 Digikey 59 P8010S-ND S1 SWITCH TACTILE SPST-NO 0.02A 15V 1 Digikey 60 EG1908-ND S2 SWITCH SLIDE DPDT 12V .1A L=4 1 Digikey 61 EG1944-ND S3 SWITCH SLIDE DP3T .2A L=6MM 1 Digikey 62 296-1089-1-ND U3, U4 IC SNGL INVERTER GATE SOT23-5 2 Digikey 63 73C8016 or 72J5420 U_1 IC, DIGITAL VOLUME CONTROL, SOIC-16 1 Newark 64 3310-IR01 U_2 CS3310 Stand-alone Controller 1 *Tachyonix 65 296-1194-1-ND U_3 IC HEX SCHMITT-TRIG INV 14-SOIC 1 Digikey 66 MC78M05CTGOS-ND U_4 IC REG VOLT POS 500MA 5V TO220AB 1 Digikey 67 LM79M05CT-ND U_5 IC VOLT REG NEG 5V 500MA TO220-3 1 Digikey 68 U_6 IC VOLT REG 12V 500MA TO220-3 1 Digikey 69 LM78M12CT-ND 1SMA5917BT3GOSCTND Z101, Z102 DIODE ZENER 4.7V 1.5W SMA 2 Digikey 70 BZT52C12-FDICT-ND Z103 DIODE ZENER 12V 500MW SOD-123 71 BZT52C15-FDICT-ND Z104 DIODE ZENER 15V 500MW SOD-123 1 Digikey 72 BZT52C36-FDICT-ND Z105 DIODE ZENER 36V 500MW SOD-123 1 Digikey 73 BZT52C18-FDICT-ND Z106 DIODE ZENER 18V 500MW SOD-123 1 Digikey Digikey 74 BZT52C11-FDICT-ND Z107 DIODE ZENER 11V 500MW SOD-123 1 Digikey 75 BZT52C8V2-FDICT-ND Z108, Z109 DIODE ZENER 8.2V 500MW SOD-123 2 Digikey 76 10M7578 ROUND KNURLED KNOB, 6MM 1 Newark 77 82K6096 Volume Knob Thermally TO-220 mounting kit with screw THERMALLOY - 4880G - Mounting Kit 3 Newark 78 8401K-ND 1/2" Standoffs 4-40 STDOFF HEX M/F 4-40 .500"L ALUM 5 Digikey 79 H724-ND 4-40 Nut 80 H729-ND No. 4 Lock Washer *Tachyonix Corporation, http://www.tachyonix.co.jp NUT HEX 4-40 STAINLESS STEEL 5 Digikey WASHER LOCK INTERNAL #4 SS 5 Digikey PCB Specifications 1. 2. 3. 4. 5. 6. Two Layers SMT PCB with through holes 1/16 thickness 2/0 OZ Cu FR4 material 10 mil lines and spaces Solder Mask to be Green enamel EMP110 DBG (CARAPACE) or Enthone Endplate DSR-3241or equivalent. 7. Silk Screen to be white epoxy non conductive per IPC–RB 276 Standard. 8. All exposed copper must finished with TIN-LEAD Sn 60 or 63 for 100u inches thick. 9. Tolerance of PCB size shall be 0.010 –0.000 inches 10. Tolerance of all Holes is -.000 + 0.003” 11. PCB acceptance criteria as defined for class II PCB’S standards. www.irf.com IRAUDAMP16 REV 1.0 Page 22 of 26 Daughter Board Figure25 Figure26 Note: Refer to AN1170 for footprint and board mounting details. www.irf.com IRAUDAMP16 REV 1.0 Page 23 of 26 Mother Board Figure27 www.irf.com IRAUDAMP16 REV 1.0 Page 24 of 26 Figure28 www.irf.com IRAUDAMP16 REV 1.0 Page 25 of 26 Revision changes descriptions Revision Rev 1.0 Changes description Released Date May, 1 2012 WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 Data and specifications subject to change without notice. 01/29/2009 www.irf.com IRAUDAMP16 REV 1.0 Page 26 of 26