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| UNISONIC TECHNOLOGIES CO., LTD PA6112 DUAL 150MW AUDIO POWER AMPLIFIER DESCRIPTION The UTC PA6112 is a dual audio power amplifier with differential inputs capable of delivering typically 150mW per channel of continuous average power to an 16 load with less than 0.1% THD+N using a 5V power supply. The unity-gain stable UTC PA6112 can be configured by external gain-setting resistors. The UTC PA6112 features an externally controlled, low-power consumption shutdown mode. The UTC PA6112 exhibit a low quiescent current of typically 1.5mA, allowing usage in portable applications. CMOS IC MSOP-10 FEATURES * Operating voltage range VDD=2.5V~5.5V * Output power: -150mW @5V into 16 * Differential inputs * Shutdown mode available * Low current consumption:3mA max * click and pop reduction circuitry * Unity-gain stable * Thermal and over-current protection *Pb-free plating product number: PA6112L ORDERING INFORMATION Order Number Normal Lead Free Plating PA6112-SM2-R PA6112L-SM2-R PA6112-SM2-T PA6112L-SM2-T Package MSOP-10 MSOP-10 Packing Tape Reel Tube PA6112L-SM2-R (1)Packing Type (2)Package Type (3)Lead Plating (1) R: Tape Reel, T: Tube (2) SM2: MSOP-10 (3) L: Lead Free Plating, Blank: Pb/Sn www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd 1 of 8 QW-R502-100,A PA6112 PIN CONFIGURATION VOUT1 1 IN1IN1+ BYPASS GND 2 3 4 5 10 VDD 9 VOUT2 8 IN27 IN2+ 6 SHUTDOWN CMOS IC PIN DESCRIPTION PIN NO 4 5 2 3 8 7 6 10 1 9 PIN NAME BYPASS GND IN1IN1+ IN2IN2+ SHUTDOWN VDD VOUT1 VOUT2 I/O I I I I I I I I O O DESCRIPTION Connect to internal voltage divider. For best performance, a 0.1 F ~ 1 F low ESR capacitor used. Ground Channel 1 negative input. Channel 1 positive input. Channel 2 negative input. Channel 2 positive input. Low quiescent current mode enable. High active. Supply voltage. Channel 1 audio output. Channel 2 audio output. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R502-100,A PA6112 ABSOLUTE MAXIMUM RATINGS CMOS IC PARAMETER SYMBOL RATINGS UNIT Supply Voltage VDD 6 V Input Voltage VIN -0.3~VDD~+0.3 V Continuous Total Power Dissipation internally limited Operating Junction Temperature TJ -40 ~ +150 Storage Temperature TSTG -65 ~ +150 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 CONDITIONS PARAMETER Supply Voltage High-level Input Voltage Low-level Input Voltage SYMBOL VDD VIH, (SHUTDOWN) VIL, (SHUTDOWN) MIN 2.5 0.6xVDD TYP MAX 5.5 0.25xVDD UNIT V V V ELECTRICAL CHARACTERISTICS (TA = 25 ) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT DC ELECTRICAL CHARACTERISTICS Output ffset Voltage Power Supply Rejection Ratio Supply Current Supply Current in SHUTDOWN Mode Input Impedance VO(OFF) PSRR IDD IDD(SD) ZIN AV = 2 V/V, VDD = 3.2 V ~ 3.4 V VDD = 4.9 V ~ 5.1 V SHUTDOWN = 0 V, VDD = 2.5 ~ 5.5 V SHUTDOWN = VDD VDD = 2.5 ~ 5.5 V 15 83 76 1.5 10 >1 3 50 mV dB mA A M AC OPERATING CHARACTERISTICS (VDD = 3.3V, RL = 16) Output Power (Each Channel) Total Harmonic Distortion + Noise Maximum Output Power BW Phase Margin Supply Ripple Rejection Ratio Channel/Channel Output Separation Signal-to-Noise Ratio Noise Output Voltage THD 0.1%, f = 1 kHz POUT THD+N POUT = 40 mW, 20 - 20 kHz BOM G = 10, THD < 5% Open loop RR f = 1 kHz f = 1 kHz SNR POUT = 50 mW, AV = 1 eN AV = 1 60 0.4% >20 96 71 89 100 11 mW KHz dB dB dB V(rms) AC OPERATING CHARACTERISTICS (VDD = 5V, RL = 16) Output Power (each channel) Total Harmonic Distortion + Noise Maximum Output Power BW Phase Margin Supply Ripple Rejection Ratio Channel/Channel Output Separation Signal-to-Noise Ratio Noise Output Voltage POUT THD0.1%, f = 1 kHz THD+N POUT = 100 mW, 20 - 20 kHz BOM G = 10, THD < 5% Open loop RR f = 1 kHz f = 1 kHz SNR POUT = 100 mW, AV = 1 eN AV = 1 150 0.6% >20 96 61 90 100 11.7 mW KHz dB dB dB V(rms) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW-R502-100,A PA6112 ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP CMOS IC MAX UNIT AC OPERATING CHARACTERISTICS (VDD = 3.3V, RL = 32) Output Power (Each Channel) Total Harmonic Distortion + Noise Maximum Output Power BW Phase Margin Supply Ripple Rejection Ratio Channel/Channel Output Separation Signal-to-Noise Ratio Noise Output Voltage POUT THD 0.1%, f = 1 kHz THD+N POUT = 30 mW, 20 - 20 kHz BOM AV = 10, THD < 2% Open loop RR f = 1 kHz f = 1 kHz SNR POUT = 40 mW, AV = 1 eN AV = 1 40 0.4% >20 96 71 95 100 11 mW KHz dB dB dB V(rms) AC OPERATING CHARACTERISTICS (VDD = 5V, RL = 32) Output Power (Each Channel) Total Harmonic Distortion + Noise Maximum Output Power BW Phase Margin Supply Ripple Rejection Ratio Channel/Channel Output Separation Signal-to-Noise Ratio Noise Output Voltage POUT THD 0.1%, f = 1 kHz THD+N POUT = 60 mW, 20 - 20 kHz BOM AV = 10, THD < 2% Open loop RR f = 1 kHz f = 1 kHz SNR POUT = 90 mW, AV = 1 eN AV = 1 90 0.4% >20 97 61 98 100 11.7 mW KHz dB dB dB V(rms) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW-R502-100,A PA6112 TYPICAL APPLICATION CIRCUIT CMOS IC Rb Rf RI Right In CI RI CI Rf 4 BYPASS Cb RI CI Left In CI RI Rf 8 IN2Rf 7 IN2+ 3 IN1+ 2 IN1- Rb VDD/2 VDD 10 VDD CS VOUT1 1 Co Bias SHUTDOWN 6 control RL 16 or 32 VOUT2 9 5 Co RL 16 or 32 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R502-100,A PA6112 TYPICAL CHARACTERISTICS CMOS IC THD+N - Total Harmonic Distortion + Noise - % THD+N - Total Harmonic Distortion + Noise - % Figure 1. Total Harmonic Distortion + Noise vs Frequency 10 VDD =5 V, PO = 150 mW, C B = 1 F, /V 1 RL = 8 , 0V =- 1 AV V/V =- 5 0.1 AV /V 1V =AV 0.01 Figure 2. Total Harmonic Distortion + Noise vs Output Power 10 VDD = 5 V, RL = 8 , 1KHz AV = -1 V/V 1 CB = 1 F 20KHz 0.1 20Hz 0.01 0.001 20 100 1K Frequency, f (Hz) 10K 20K 0.001 10 100 Output Power, PO (mW) 500 THD+N - Total Harmonic Distortion + Noise - % THD+N - Total Harmonic Distortion + Noise - % Figure 3. Total Harmonic Distortion + Noise vs Frequency 10 VDD = 5 V, PO = 100 mW, CB = 1 F, 1 RL = 16 /V 0V -1 = V AV V/ =- 5 0.1 V A /V 1V =V A 0.01 Figure 4. Total Harmonic Distortion + Noise vs Output Power 10 VDD = 5 V, R L = 16 , 20Hz AV = -1 V/V 1 C B = 1 F 0.1 20KHz 1KHz 0.01 0.001 20 100 1K Frequency, f (Hz) 10K 20K 0.001 10 100 Output Power, POUT (mW) 500 Supply Ripple Rejection Ratio, KSVR (dB) 0 VDD = 5 V, -10 0.1F RL = 16 , -20 0 .4 7F AV =-1V/V -30 -40 1F -50 -60 -70 Bypass=2.5V -80 -90 -100 -110 -120 20 1K 10K 20K 100 Frequency, f (Hz) Figure 5. Supply Ripple Rejection Ratio Vs Frequency Output Noise Voltage, Vn V(RMS) 100 Figure 6. Output Noise Voltage vs Frequency AV=-10V/V AV =-1V/V 10 1 20 VDD = 5 V, BW = 10 Hz ~ 22KHz RL = 16 , 1K 100 Frequency, f (Hz) 10K 20K UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW-R502-100,A PA6112 TYPICAL CHARACTERISTICS(Cont.) Figure 7. Crosstalk vs Frequency VDD = 5 V, PO = 150 mW, C B = 1 F, RL = 8 A =- 1 V CMOS IC 10 THD+N - Total Harmonic Distortion + Noise - % 1 0.1 0.01 /V 1V =AV AV= / - 5V V Crosstalk (dB) / 0V V 0.001 20 100 1K Frequency, f (Hz) 10K 20K 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 20 Figure 8. Crosstalk vs Frequency VDD = 5 V, PO=150mW CB=1F, RL = 8 , AV=-1V/V IN2-~VOUT1 IN1-~VOUT2 100 1K Frequency, f (Hz) 10K 20K Shutdown Attenuation (dB) -40 -50 -60 -70 -80 THD + N (%) Figure 9. Shutdown Attenuation vs Frequency 0 VDD = 5 V, -10 RL = 8 -20 C B=1F -30 Figure 10. THD + N vs Output Power 10 RL =16 F = 20kHz GV = -1 CB = 1F 1 BW < 125kHz Ta = 25 VCC=2V VCC=2.5V VCC=3.3V VCC=5V 0.1 -90 -100 20 100 1K Frequency, f (Hz) 10K 20K 1 10 Output Power (mW) 100 250 Figure 11. Output Power vs Load Resistance 2.5 Figure 12. Supply Current vs Supply Voltage 200 150 100 50 0 Supply Current, IDD (mA) Output Power, PO (mW) VDD = 5 V, THD+N=1% AV=-1V/V 2 1.5 1 0.5 0 8 12 1620 24 28 3236 40444852 56 60 64 Load Resistance RL () , 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 Supply Voltage, VDD (V) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 8 QW-R502-100,A PA6112 TYPICAL CHARACTERISTICS(Cont.) Figure 13. Signal-to-Noise Ratio vs Voltage Gain VDD=5V 100 80 60 40 20 0 1 2 34 5 67 8 Voltage Gain, AV (V/V) 9 10 CMOS IC Power Dissipation/Amplifier (mW) Signal-to-Noise Ratio, SNR (dB) 120 Figure 14. Power Disssipation /Amplifier vs Load Power 180 VDD=5V 160 140 120 100 80 60 40 32 64 16 20 0 0 20 40 60 80100 120140160180200 Load Power (mW) 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-R502-100,A |
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