UNISONIC TECHNOLOGIES CO., LTD PA7522 LINEAR INTEGRATED CIRCUIT DUAL 3-W BTL AUDIO POWER AMPLIFIER DESCRIPTION The UTC PA7522 is an audio power amplifier IC for the stereo system. In the BTL (balanced transformer less) method, fewer external parts and easier design for applications are required. FEATURES * 3-W output (8Ω) with supply voltage of 8V * On-chip standby function * On-chip volume function Lead-free: PA7522L Halogen-free: PA7522G ORDERING INFORMATION Normal PA7522-H12-A-T PA7522-H14-B-T Ordering Number Lead Free Plating PA7522L-H12-A-T PA7522L-H14-B-T www.unisonic.com.tw Copyright © 2009 Unisonic Technologies Co., Ltd Halogen Free PA7522G-H12-A-T PA7522G-H14-B-T Package Packing HSIP-12A HSIP-14B Tube Tube 1 of 8 QW-R107-059.A PA7522 LINEAR INTEGRATED CIRCUIT PIN DESCRIPTION PIN NO. HSIP-12A HSIP-14B 1 1 2 3 4 5 6 7 8 9 10 11 12 - 2 3 4 5 6 7 8 9 10 11 12 13 14 PIN NAME NC VCC Ch.1+ output GND Ch.1- output Standby Ch.1 input GND Ch.2 input Volume Ch.2- output GND Ch.2+ output NC DESCRIPTION No connect Supply voltage Ch.1+ output Ground (output ch.1) Ch.1 - output Standby (standby state if this pin is open) Ch.1 input Ground (input) Ch.2 input Volume (max. volume if this pin is open.) Ch.2 - output Ground (output ch.2) Ch.2 + output No connect UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R107-059.A PA7522 BLOCK DIAGRAM 7 6 + 5 4 - 3 + 2 1 + + Ch.2 input 10 GND 9 Ch.1 input 8 Standby 7 Ch.1- output GND (Ch.1 output) 6 Ch.1+ output Vcc 11 + 8 Volume 12 5 4 + + 9 Ch.2- output 13 - 10 GND (Ch.2 output) 14 - 11 Ch.2+ output - 12 HSIP-14B - + HSIP-12A - LINEAR INTEGRATED CIRCUIT 3 2 Ch.2+ output GND (Ch.2 output) Ch.2- output Volume Ch.2 input GND Ch.1 input Standby Ch.1- output GND (Ch.1 output) Ch.1+ output Vcc 1 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW-R107-059.A PA7522 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta = 25°C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage (At no signal) VCC 14 V Supply Current ICC 2.0 A Power Dissipation(Ta = 70°C) PD 1.92 W Operating Temperature TOPR -20 ~ +85 °C Storage Temperature TSTG -40 ~ +150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. RECOMMENDED OPERATING RATINGS PARAMETER Supply voltage SYMBOL VCC RATINGS 3.5 ~ 13.5 UNIT V ELECTRICAL CHARACTERISTICS (VCC=8.0V, RL=8Ω, f=1kHz, Ta=25°C±2°C, unless otherwise specified.) PARAMETER SYMBOL TEST CONDITIONS Quiescent Circuit Current ID VIN=0mV, Vo1.=0V Standby Current ISTN-BY VIN=0mV, Vo1.=0V Output Noise Voltage (Note) VNO RG=10KΩ, Vo1.=0V Output Offset Voltage VOFF RG=10KΩ, Vo1.=0V Total Harmonic Distortion THD POUT=0.5W, Vo1.=1.25V Maximum Output Power POUT1 THD=10%, Vo1.=1.25V RG=10KΩ, Vo1.=0V Ripple Rejection (Note) RR VR=1V(rms), fR=120Hz Voltage Gain Gv POUT=0.5W, Vo1.=1.25V Volume Attenuation Rate* Att POUT=0.5W, Vo1.=0V Channel Balance 1 CB1 POUT=0.5W, Vo1.=1.25V Channel Balance 2 CB2 POUT=0.5W, Vo1.=0.6V Intermediate Voltage Gain GVM POUT=0.5W, Vo1.=0.6V Channel Crosstalk CT POUT=0.5W, Vo1.=1.25V Note: In measuring, the filter for the range of 15 Hz ~ 30 kHz (12 dB/OCT) is used. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw MIN 2.4 TYP 45 1 0.10 0 0.10 3.0 30 50 31 70 -1 -3 20.5 40 33 85 0 0 23.5 55 -250 MAX UNIT 100 mA 10 µA 0.4 mV(rms) 250 mV 0.5 % W dB 35 1 3 26.5 dB dB dB dB dB dB 4 of 8 QW-R107-059.A PA7522 LINEAR INTEGRATED CIRCUIT TERMINAL EQUIVALENT CIRCUITS AT VCC=8V PIN NO. HSIP-12A HSIP-14B 1 2 2 3 3 4 4 5 PIN NAME VCC Ch.1 + output pin GND Ch.1 - output pin 5 6 Standby pin 6 7 8 9 10 11 12 7 8 9 10 11 12 13 Ch.1 input pin GND Ch.2 input pin Volume pin Ch.2-output pin GND Ch.2+ output pin VOLTAGE 8V 3.6V (at no signal) 0V 3.9V (at no signal) 0V or 5V (Standby off at supply 5V. Standby at 0.4V less or open. ) 1.4V (Input circuit bias voltage is output) 0V 1.4V (Input circuit bias voltage is output) Supply to 0V ~ 1.25V 3.9V (at no signal) 0V 3.6V (at no signal) USAGE NOTES * Please avoid the short-circuits to VCC, ground, or load short-circuit. * Please connect the cooling fin with the GND potential. * The thermal shutdown circuit operates at about TJ=150°C. However, the thermal shutdown circuit is reset automatically if the temperature drops. * Please carefully design the heat radiation especially when you take out high power at high VCC . * Please connect only the ground of signal with the signal GND of the amplifier in the previous stage. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R107-059.A PA7522 + APPLICATION CIRCUIT EXAMPLE - 12 8Ω Out 2 11 + 10 Volume + 9 8 10kΩ VIN2 1.0μF 7 + 1.0μF 10kΩ 6 270kΩ 68kΩ VIN1 Standby + + 5 - 4 3 10μF 8Ω Out 1 + 2 VCC + LINEAR INTEGRATED CIRCUIT 1 470μF UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW-R107-059.A PA7522 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS ICQ, ISTB vs. VCC ICQ vs. VSTB 0.10 9.0 0.09 VCC=8V, VSTB=0V VOL=0V, RL=8Ω, Rg=10kΩ 60 8.0 50 7.0 ICQ 6.0 40 5.0 30 4.0 3.0 20 ISTB 2.0 10 0 1.0 0 2 4 8 6 10 12 14 Quiescent Circuit Current, ICQ (mA) 10.0 Standby Current, ISTB (µA) Quiescent Circuit Current, ICQ (mA) 70 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 0.0 VCC=8V, VSTB=5V VOL=0V, RL=8Ω, Rg=10kΩ 0 1 Supply Voltage, VCC (V) 2 3 4 5 Standby Voltage, VSTB (V) GV vs. VCC GV vs. VIN 100 35 GV(ch1) 34 GV(ch2) 32 Voltage Gain, GV (dB) Voltage Gain, GV (dB) 33 31 30 29 28 10 27 VCC=8V, VSTB=0V, VOL=0V f=1kHz, RL=8Ω, Rg=10kΩ 26 25 4 6 8 10 12 1 14 Vcc=8V, VSTB=0V, VOL=0V f=1kHz, RL=8Ω, Rg=10kΩ 100 10 Supply Voltage, VCC (V) GV, PO vs. f GV(ch1) 1.8 GV(ch2) 32 1.6 1.4 PO(ch1) 1.2 31 1.0 30 PO(ch1) 29 0.8 28 0.6 27 0.4 26 VCC=8V, VSTB=0V, VOL=0V f=1kHz, RL=8Ω, Rg=10kΩ 25 0.01 0.1 1 1 0.1 0.2 0.0 10 100 Frequency, f (Hz) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Output Power, PO (W) 33 Output Power, PO (W) 34 Voltage Gain, GV (dB) PO vs. VIN 10 2.0 35 1000 In-put Voltage, VIN (mV[rms]) 0.01 VCC=8V, VSTB=0V, VOL=0V f=1kHz, RL=8Ω, Rg=10kΩ 10 100 1000 In-put Voltage, VIN (mV[rms]) 7 of 8 QW-R107-059.A PA7522 LINEAR INTEGRATED CIRCUIT TYPICAL CHARACTERISTICS(Cont.) PO vs. VCC 8 Output Power, PO (W) 7 Vcc=8V, VSTB=0V, VOL=0V, RL=8\16Ω, Rg=10kΩ f=1kHz, THD=10% 6 5 4 RL=8Ω 3 2 1 0 0 RL=16Ω 2 4 6 8 10 12 Supply Voltage, VCC (V) 14 UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 8 QW-R107-059.A