pa7493 ETC-unknow, pa7493 Datasheet

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... X 2 CLASS AB AUDIO POWER AMPLIFIER (WITH DC_VOLUME CONTROL) DESCRIPTION UTC PA7493 provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2W into 4Ω monolithic integrated circuit. In stand-by the power consumption is very low. UTC PA7493 combines a stereo single-end (SE) mode for headphone drive into a single chip and a ...

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... +OUT1 O UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com. Vol UTC OUT PA7493 OUT 8 GND DESCRIPTION When this pin connected to the V Supply voltage input pin DC Volume control input Output of Channel 1 for external feedback circuit ...

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... PA7493 BLOCK DIAGRAM V 1 OUT Voltage Bypass and BYPASS De-Pop Noise OUT V CC Power Management GND UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com. 20K R I 20K AMP1N 32 steps DC Control Volume R f 20K R I 20K AMP2N DC Vol CMOS IC -OUT1 +OUT1 AMP1P ...

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... PA7493 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Input Voltage Input Current Operating Temperature Storage Temperature Note: 1. 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. ...

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... Normal INPUT GAIN ADJUST The output gain of the UTC PA7493 can be adjusted by the external resistor. 0dB gain setting is recommended in normal operation, please refer the application circuit. If the source output level is not so high (ex :< 2V can be increased to get the proper volume. The minimum value of the input series resistance is 10KΩ for the modest input impedance ...

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... PA7493 VOLUME CONTROL TABLE Gain Voltage Range (% of V (dB) Low High Recommended 0 77.5% 100.00% 100.000% -1 75.0% 78.5% 76.875% -2 72.5% 76.25% 74.375% -3 70.0% 73.75% 71.875% -4 67.5% 71.25% 69.375% -5 65.0% 68.75% 66.875% -6 62.5% 66.25% 64.375% -8 60.0% 63.75% 61.875% -10 57.5% 61.25% 59.375% -12 55.0% 58.75% 56.875% -14 52.5% 56.25% 54.375% -16 50.0% 53.75% 51.875% -18 47.5% 51.25% 49.375% -20 45.0% 48.75% 46.875% -22 42.5% 46.25% 44.375% -24 40.0% 43.75% 41..875% -26 37.5% 41.25% 39.375% -28 35.0% 38.75% 36.875% -30 32.5% 36.25% 34.375% -32 30.0% 33.75% 31.875% -34 27.5% 31.25% 29.375% -36 25.0% 28.75% 26.875% -39 22.5% 26.25% 24.375% -42 20.0% 23.75% 21.875% -45 17.5% 21.25% 19.375% -47 15.0% 18.75% 16.875% -51 12.5% 16.25% 14.375% -56 10.0% 13.75% 11.875% -61 7 ...

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... PA7493 TYPICAL APPLICATION CIRCUIT 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 ...