pa7469 ETC-unknow, pa7469 Datasheet
pa7469
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pa7469 Summary of contents
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... 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 ...
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... R O OUT- UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com. BYPASS 3 R IN- 4 GND UTC PA7469 GND IN- 7 SE/BTL 8 DESCRIPTION When this pin is pulled low the chip will be into shutdown mode. I 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 ...
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... PA7469 BLOCK DIAGRAM L IN- R IN- VOLUME SE/BTL SHUTDOWN UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw Volume Control BYPASS SE/BTL Shutdown ckt Power and Depop circuit CMOS IC L OUT+ L OUT- BYPASS R OUT+ R OUT GND QW-R502-201.A ...
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... PA7469 ABSOLUTE MAXIMUM RATINGS (Over operating free-air temperature range unless otherwise specified) PARAMETER Supply Voltage Input Voltage , SE/BTL, SHUTDOWN Power Dissipation Junction Temperature Operating Temperature Storage Temperature Note: 1. That integrated internal thermal shutdown protection when junction temperature ramp up to 150℃ ...
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... PA7469 ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SE Mode V =5V,T =25℃, Gain=1dB DD A Maximum Output Power Total Harmonic Distortion Plus Noise Power Ripple Rejection Ratio Channel Separation Signal to Noise Ratio UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw SYMBOL TEST CONDITIONS THD=10%, R =16Ω, F =1kHz L IN THD=10%, R =32Ω, F ...
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... PA7469 TYPICAL APPLICATION CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw CMOS QW-R502-201.A ...
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... PA7469 VOLUME CONTROL TABLE_BTL MODE GAIN(DB) HIGH(V) LOW(V) 20 0.12 0.00 18 0.23 0.17 16 0.34 0.28 14 0.46 0.39 12 0.57 0.51 10 0.69 0.62 8 0.80 0.73 6 0.91 0.84 4 1.03 0.96 2 1.14 1.07 0 1.25 1.18 -2 1.37 1.29 -4 1.48 1.41 -6 1.59 1.52 -8 1.71 1.63 -10 1.82 1.74 -12 1.93 1.85 -14 2.05 1.97 -16 2.16 2.08 -18 2.28 2.19 -20 2.39 2.30 -22 2.50 2.42 -24 2.62 2.53 -26 2.73 2.64 -28 2.84 2.75 -30 2.96 2.87 -32 3.07 2.98 -34 3.18 3.09 -36 3.30 3.20 -38 3.41 3.32 -40 3.52 3.43 -80 5.00 3.54 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw (Supply Voltage V =5V) DD HYSTERESIS(MV) RECOMMENDED VOLTAGE( ...
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... PA7469 TYPICAL CHARACTERISTICS THD+N vs. Frequency =3Ω =1.8W OUT 1 BTL A =20dB VD 0.1 A =6dB VD 0.01 100 1k 20 Frequency (Hz) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw THD+N vs. Frequency =6dB V RL=3Ω 1 BTL P OUT 0.1 P 0.01 100 10k 20k 20 Frequency (Hz) CMOS IC =0.9W =1.8W OUT 1k 10k 20k QW-R502-201.A ...
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... PA7469 TYPICAL CHARACTERISTICS Frequency Response +20 Amplitude(20dB) +16 Phase(20dB) +12 Phase(6dB Amplitude(6dB 100 1k Frequency (Hz) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw +14 +330 Amplitude(14dB) +320 +10 V =5V DD +310 R =4Ω =0.8W Phase(14dB) OUT +300 BTL +2 +190 -2 +180 +170 -6 +160 -10 20k 100k 200k 20 100 CMOS IC Frequency Response ...
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... PA7469 TYPICAL CHARACTERISTICS(Cont.) Crosstalk vs. Frequency 0 V =5V - =4Ω - =1.5W OUT -30 BTL -40 -50 -60 -70 Right to Left -80 -90 -100 Left to Right -110 -120 20 100 1k Frequency (Hz) Output Noise Voltage vs. Frequency 100u Filter BW<22KHz 20u A-Weight 10u V = =6dB V R =4Ω L BTL 1u 20 ...
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... PA7469 TYPICAL CHARACTERISTICS(Cont.) Power Dissipation vs. Output Power 200 R =8Ω L 180 160 140 120 R =16Ω L 100 =32Ω 100 Output Power(W) UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 150 200 250 CMOS QW-R502-201.A ...
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... PA7469 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 ...