92HD65C Datasheet, PDF (16/268 Pages) Integrated Device Technology – SIX CHANNEL HD AUDIO CODECS

92HD65C
SIX CHANNEL HD AUDIO CODEC WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
2.7. Analog Mixer
The mixer supports independent gain (-34.5 to +12dB in 1.5dB steps) on each input as well as inde-
pendent mutes on each input. The following inputs are available: The output of the mixer may be
sent to the ADC where the ADC record gain can adjust the volume. If the output of the mixer is sent
to an analog port, then a separate volume control is provided to adjust the output volume. This mixer
output volume control supports a gain range of -46.5dB to 0dB in 1.5dB steps. (Selecting -46.5dB
will automatically mute the output.)
• Port A
• Port B
• Port C
• Port E
• Port F
• DAC0
• DAC1
• DAC2
2.8. ADC Multiplexers
The codec implements 2 ADC input multiplexers. These multiplexers incorporate the ADC record
gain function (-16 to +30dB gain in 1dB steps) as an output amp and allow a preselection of one of
these possible inputs:
• Port A
• Port B
• Port C
• Port E
• Port F
• Mixer Output
• DMIC 0
• DMIC 1
IDT CONFIDENTIAL
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92HD65C