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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STAC9752 датащи(PDF) 87 Page - Integrated Device Technology |
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STAC9752 датащи(HTML) 87 Page - Integrated Device Technology |
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87 / 95 page  STAC9752/9753 TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING IDT™ 87 STAC9752/9753 REV 3.3 1206 TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING 12.2. Analog I/O These signals connect the STAC9752/9753 to analog sources and sinks, including microphones and speakers. Note: * Unused input pins should be tied together and connected to ground through a capacitor (0.1 µF suggested), except the MIC inputs which should have a separate capacitor to ground. Note: †The CD_GND signal is an AC signal return for the two CD input channels. It is normally biased at about 2.5V. The name of the pin in the AC97 specification is CD_GND, and this has confused many designers. It should not have any DC path to GND. Connecting the CD_GND signal directly to ground will change the internal bias of the entire CODEC, and cause serious distortion. If there is no analog CD input, then this pin can be No-Connect. Table 33. Analog Connection Signals Pin Name Pin # Type Description PC_BEEP 12 I* PC Speaker beep pass-through PHONE 13 I* From telephony subsystem speakerphone AUX_L 14 I* Aux Left Channel AUX_R 15 I* Aux Right Channel VIDEO_L 16 I* Video Audio Left Channel VIDEO_R 17 I* Video Audio Right Channel CD_L 18 I* CD Audio Left Channel CD_GND † 19 I* CD Audio analog signal return (Do NOT ground. See note. †) CD_R 20 I* CD Audio Right Channel MIC1 21 I* Desktop Microphone Input MIC2 22 I* Second Microphone Input LINE_IN_L 23 I* Line In Left Channel LINE_IN_R 24 I* Line In Right Channel LINE_OUT_L 35 O Line Out Left Channel LINE_OUT_R 36 O Line Out Right Channel MONO_OUT 37 O To telephony subsystem speakerphone HP_OUT_L 39 O Headphone Out Left Channel HP_COMM 40 O Headphone Ground Return HP_OUT_R 41 O Headphone Out Right Channel |
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