UNISONIC TECHNOLOGIES CO., LTD PA7469 CMOS IC STEREO 2.6W AUDIO POWER AMPLIFIER (WITH DC_VOLUME CONTROL) DIP-16 DESCRIPTION As an audio power amplifier, UTC PA7469 can provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.6Ω(1.8W) into 4W with less than 10% (1.0%)THD+N. In UTC PA7469, the attenuator range of the volume control is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V) with 32 steps. It also includes both of the depop circuitry and the thermal shutdown protection circuitry which can reduce pops and clicks noise during power up or shutdown mode operation. It also improves the power off pop noise and has the parts to not been destroyed by over temperature and short current failure. Into a single UTC PA7469 chip, there are a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, which built to simplify the audio system design. And both modes are easily switched by the SE/BTL input control pin signal. SOP-16 * Product number: Lead-free: PA7469L Halogen-free: PA7469G FEATURES * Low operating current: 9mA * Two output modes allowable with BTL and SE modes selected by SE/BTL pin * Low current consumption in shutdown mode :1μA * Short circuit protection * Thermal shutdown protection and over current protection circuitry * Improved depop circuitry to eliminate turn-on and turn-off transients in outputs * Very high PSRR * 32 Steps volume adjustable * BTL mode: 2.6W per channel output power into 4Ω Load at 5V RDERING INFORMATION Normal PA7469-D16-T PA7469-S16-T PA7469-S16-R Ordering Number Lead Free Plating PA7469L-D16-T PA7469L-S16-T PA7469L-S16-R Halogen-Free Plating PA7469G-D16-T PA7469G-S16-T PA7469G-S16-R www.unisonic.com.tw Copyright © 2008 Unisonic Technologies Co., Ltd Package Packing DIP-16 SOP-16 SOP-16 Tube Tube Tape Reel 1 of 12 QW-R502-201.A PA7469 CMOS IC PIN CONFIGURATION SHUTDOWN 1 16 ROUT- BYPASS 2 15 VDD RIN- 3 14 ROUT+ GND 4 13 GND GND 5 12 GND LIN- 6 11 LOUT+ VOLUME 7 10 VDD SE/BTL 8 9 UTC PA7469 LOUT- PIN DESCRIPTION PIN NO 1 2 3 4,5,12,13 6 7 PIN NAME SHUTDOWN BYPASS RINGND LINVOLUME I/O I I I 8 SE/ BTL I 9 10,15 LOUTVDD O 11 LOUT+ O 14 ROUT+ O 16 ROUT- O I I DESCRIPTION When this pin is pulled low the chip will be into shutdown mode. ISD= 1μA Bias voltage generator Right channel input Ground Left channel input Volume gain setting input signal Output mode control input, High: SE output mode, Low: for BTL mode. Left channel positive output in BTL mode and SE mode. Supply voltage Left channel negative output in BTL mode High impedance in SE mode. Right channel negative output in BTL mode High impedance in SE mode. Right channel positive output in BTL mode and SE mode. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 12 QW-R502-201.A PA7469 CMOS IC BLOCK DIAGRAM LINRIN- LOUT+ Volume Control VOLUME LOUT- BYPASS BYPASS ROUT+ SE/BTL SE/BTL SHUTDOWN Shutdown ckt UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw ROUT- Power and Depop circuit VDD GND 3 of 12 QW-R502-201.A PA7469 CMOS IC ABSOLUTE MAXIMUM RATINGS (Over operating free-air temperature range unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VDD -0.3 ~ 6 V Input Voltage , SE/BTL, SHUTDOWN VIN -0.3 ~ VDD+0.3 V Power Dissipation PD Internal Limited Junction Temperature TJ Internal Limited(Note1) ℃ Operating Temperature TOPR -40 ~ 85 ℃ Storage Temperature TSTG -65~ +150 ℃ Note: 1. That integrated internal thermal shutdown protection when junction temperature ramp up to 150℃ 2. 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. THERMAL DATA PARAMETER Junction to Ambient in Free Air SYMBOL θJA UNIT ℃/W OPERATING CONDITIONS RECOMMENDED PARAMETER SYMBOL VDD Supply Voltage High Level Threshold Voltage Low Level Threshold Voltage SHUTDOWN SE/BTL SHUTDOWN SE/BTL MIN 4.5 2 4 VIH TYP MAX 5.5 VI(CM) UNI V V V V V V 1.0 3 VIL Common Mode Input Voltage RATINGS 45 VDD -1.0 ELECTRICAL CHARACTERISTICS VDD=5V, -20℃<TA<85℃ (unless otherwise specified) PARAMETER Supply Voltage SYMBOL VDD Supply Current IDD Supply Current in Shutdown Mode ISD TEST CONDITIONS MIN 4.5 SE/BTL=0V SE/BTL=5V SE/BTL=0V SHUTDOWN=0V 9 4 IIH IIL Output Differential Voltage VOS BTL Mode VDD=5V, TA=25℃,RL=4Ω, Gain=2dB input Current High Low Maximum Output Power Total Harmonic Distortion Plus Noise Power Ripple Rejection Ratio(Note1) Channel Separation Signal to Noise Ratio THD=10%, RL=3Ω, FIN=1kHz THD=10%, RL=4Ω, FIN=1kHz THD=10%, RL=8Ω, FIN=1kHz POUT THD=1%, RL=3Ω, FIN=1kHz THD=1%, RL=4Ω, FIN=1kHz THD=0.5%, RL=8Ω, FIN=1kHz POUT=1.2W, RL=4Ω, FIN=1kHz THD+N POUT=0.9W, RL=8Ω, FIN=1kHz VIN=0.1Vrms,RL=8Ω,CB=1μF, PSRR Fin=120Hz Xtalk CB=1mF, RL=8Ω, FIN=1kHz S/N POUT =1.1W, RL=8Ω, A_wieght UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TYP 1 MAX 5.5 20 10 UNIT V mA mA 1 μA 900 900 5 nA nA mV 2.9 2.6 1.6 2.4 1.8 1.3 0.07 0.08 W W W W W W % % 60 dB 90 95 dB dB 4 of 12 QW-R502-201.A PA7469 CMOS IC ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL SE Mode VDD=5V,TA=25℃, Gain=1dB Maximum Output Power Total Harmonic Distortion Plus Noise Power Ripple Rejection Ratio Channel Separation Signal to Noise Ratio THD=10%, RL=16Ω, FIN=1kHz THD=10%, RL=32Ω, FIN=1kHz POUT THD=1%, RL=16Ω, FIN=1kHz THD=1%, RL=32Ω, FIN=1kHz POUT=125mW,RL=16Ω, FIN=1kHz THD+N POUT=65mW, RL=32Ω, FIN=1kHz VIN=0.1Vrms, RL=8Ω, CB=1μF, PSRR FIN=120Hz Xtalk CB=1mF, RL=32Ω, FIN=1kHz S/N POUT=75mΩ,SE,RL=32Ω,A_wieght UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw TEST CONDITIONS MIN TYP MAX UNIT 220 120 160 95 0.09 0.09 mW mW mW mW 60 dB 60 100 dB dB % 5 of 12 QW-R502-201.A PA7469 CMOS IC TYPICAL APPLICATION CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 12 QW-R502-201.A PA7469 CMOS IC VOLUME CONTROL TABLE_BTL MODE (Supply Voltage VDD=5V) GAIN(DB) HIGH(V) LOW(V) HYSTERESIS(MV) RECOMMENDED VOLTAGE(V) 20 18 16 14 12 10 8 6 4 2 0 -2 -4 -6 0.12 0.23 0.34 0.46 0.57 0.69 0.80 0.91 1.03 1.14 1.25 1.37 1.48 1.59 0.00 0.17 0.28 0.39 0.51 0.62 0.73 0.84 0.96 1.07 1.18 1.29 1.41 1.52 52 51 50 49 47 46 45 44 43 41 40 39 38 0 0.20 0.31 0.43 0.54 0.65 0.77 0.88 0.99 1.10 1.22 1.33 1.44 1.56 -8 1.71 1.63 37 1.67 -10 -12 -14 -16 -18 -20 -22 -24 -26 -28 -30 -32 -34 -36 -38 -40 1.82 1.93 2.05 2.16 2.28 2.39 2.50 2.62 2.73 2.84 2.96 3.07 3.18 3.30 3.41 3.52 1.74 1.85 1.97 2.08 2.19 2.30 2.42 2.53 2.64 2.75 2.87 2.98 3.09 3.20 3.32 3.43 35 34 33 32 30 29 28 27 26 24 23 22 21 20 18 17 1.78 1.89 2.01 2.12 2.23 2.35 2.46 2.57 2.69 2.80 2.91 3.02 3.14 3.25 3.36 3.48 -80 5.00 3.54 16 5 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 12 QW-R502-201.A PA7469 THD+N (%) THD+N (%) THD+N (%) THD+N (%) TYPICAL CHARACTERISTICS 1 0.1 THD+N vs. Frequency 5 VDD=5V RL=3Ω POUT=1.8W BTL THD+N (%) 5 THD+N (%) CMOS IC AVD=20dB 1 0.1 THD+N vs. Frequency VDD=5V AV=6dB RL=3Ω BTL POUT=0.9W AVD=6dB 0.01 20 100 1k Frequency (Hz) 10k 20k UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 0.01 20 POUT=1.8W 100 1k Frequency (Hz) 10k 20k 8 of 12 QW-R502-201.A PA7469 THD+N (%) THD+N (%) THD+N (%) TYPICAL CHARACTERISTICS THD+N (%) CMOS IC +20 +16 +12 Frequency Response Amplitude(20dB) Phase(20dB) +0 10 +14 +320 VDD=5V +310 RL=4Ω POUT=0.8W +300 BTL +10 +190 +2 +180 -2 +170 -6 Phase(6dB) +8 +4 +330 Amplitude(6dB) +160 100 1k 20k 100k 200k Frequency (Hz) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw +6 Frequency Response +220 VDD=5V Amplitude(14dB) +210 RL=32Ω CO=1000µF POUT=300mW Phase(14dB) +200 SE Amplitude(0dB) +190 Phase(0dB) +180 +170 -10 20 100 10k 1k Frequency (Hz) +165 100k 200k 9 of 12 QW-R502-201.A PA7469 TYPICAL CHARACTERISTICS(Cont.) Crosstalk vs. Frequency 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 20 VDD=5V RL=4Ω POUT=1.5W BTL -20 -30 -40 -50 1k Frequency (Hz) 10k 20k Filter BW<22KHz 20u A-Weight VDD=5V AV=6dB RL=4Ω BTL 0 100 1k Frequency (Hz) 10k 20k PSRR vs. Frequency -90 -100 20 100u 1u 20 -30 -40 -50 -40 -50 -100 20 100 1k Frequency (Hz) 10k 20k UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Filter BW<22KHz VDD=5V AV=0dB RL=32Ω SE -30 -90 10k 20k A-Weight 0 VDD=5V RL=4Ω VIN=200mV AV=20dB BTL 1k Frequency (Hz) 10u -10 -20 -70 -80 100 Output Noise Voltage vs. Frequency 20u -10 -20 -60 Left to Right -80 Output Noise Voltage vs. Frequency 1u 20 Right to Left -60 -70 Left to Right 10u VDD=5V RL=32Ω CO=1000µF POUT=65mW SE -10 Right to Left 100 Crosstalk vs. Frequency 0 Output Noise Voltage(V) 100u Output Noise Voltage(V) CMOS IC 100 10k 20k PSRR vs. Frequency -60 VDD=5V RL=32Ω VIN=200mV AV=14dB SE -70 -80 -90 -100 20 1k Frequency (Hz) 100 1k Frequency (Hz) 10k 20k 10 of 12 QW-R502-201.A PA7469 Power Dissipation (W) Supply Current(mA) Gain (dB) Shutdown Attenuation(dB) TYPICAL CHARACTERISTICS(Cont.) 200 Power Dissipation vs. Output Power RL=8Ω 180 160 Power Dissipation (W) CMOS IC 140 120 100 RL=16Ω 80 60 40 RL=32Ω 20 0 0 50 100 150 200 Output Power(W) 250 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 11 of 12 QW-R502-201.A PA7469 CMOS IC 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 12 of 12 QW-R502-201.A