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STAC9766 Datasheet(PDF) 12 Page - Integrated Device Technology |
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STAC9766 Datasheet(HTML) 12 Page - Integrated Device Technology |
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12 / 97 page  STAC9766/9767 TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING PC AUDIO IDT™ 12 STAC9766/9767 V 7.4 12/06 TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING Note: 1. With +30 dB Boost on, 1.0Vrms with Boost off 2. Ratio of Full Scale signal to idle channel noise output is measured “A weighted” over a 20 Hz to a 20 KHz bandwidth. (AES17-1991 Idle Channel Noise or EIAJ CP-307 Signal-to-noise Ratio). 3. ± 1dB limits for Line Output & 0 dB gain 4. 20 KHz BW, 48 KHz Sample Frequency 5. ± 0.25dB limits 6. Stop Band rejection determines filter requirements. Out-of-Band rejection determines audible noise. 7. The integrated Out-of-Band noise generated by the DAC process, during normal PCM audio playback, over a bandwidth 28.8 to 100 KHz, with respect to a 1 Vrms DAC output. 8. For all inputs except PC BEEP. PCM (DAC) to LINE_OUT 0.5 Vrms MONO_OUT - 0.5 - Vrms HEADPHONE_OUT (32 Ω load) (peak) - 12.5 - mW Analog S/N: (Note 2) CD to LINE_OUT - 97 - dB Other to LINE_OUT - 97 - dB D/A to LINE_OUT - 95 - dB LINE_IN to A/D with High pass filter enabled - 85 - dB Analog Frequency Response (Note 3) 20 - 20,000 Hz Total Harmonic Distortion: (Note 4) CD to LINE_OUT - 95 - dB Other to LINE_OUT - 95 - dB D/A to LINE_OUT (full scale) - 84 - dB LINE_IN to A/D with High pass filter enabled - 84 - dB HEADPHONE_OUT 74 80 - dB A/D & D/A Digital Filter Pass Band (Note 5) 20 - 19,200 Hz A/D & D/A Digital Filter Transition Band 19,200 - 28,800 Hz A/D & D/A Digital Filter Stop Band 28,800 - - Hz A/D & D/A Digital Filter Stop Band Rejection (Note 6) 100 - - dB DAC Out-of-Band Rejection (Note 7) 55 - - dB Group Delay (48 KHz sample rate) - - 1 ms Any Analog Input to LINE_OUT Crosstalk (10 KHz Signal Frequency) 70 - - dB Any Analog Input to LINE_OUT Crosstalk (1 KHz Signal Frequency) - 100 - dB Spurious Tone Rejection - 100 - dB Attenuation, Gain Step Size - 1.5 - dB Input Impedance (Note 8) - 50 - K Ω Input Capacitance - 15 - pF VREFout - 0.5 X AVdd - V Interchannel Gain Mismatch ADC - - 0.5 dB Interchannel Gain Mismatch DAC - - 0.5 dB Gain Drift - 100 - ppm/ºC Parameter Min Typ Max Unit |
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