VT1616 데이터 시트보기 (PDF) - Unspecified

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VT1616

6-Channel AC97 Codec with S/PDIF

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VT1616 6-Channel AC97 Codec with S/PDIF

Phone Input Volume Control Register (Index 0Ch)

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default

Mute –

–

–

–

–

–

–

–

–

– GN4 GN3 GN2 GN1 GN0 8008h

Mute

GN[4:0]

Phone Input Mute Control

“1” : Mute enabled

“0” : Mute disabled

Phone Input Volume Control

These five bits select the gain applied to the Phone Input signal. The gain is programmable from -

34.5dB to 12dB in 1.5dB increments, providing a total of 32 programmable levels. Please refer to

Table 3 on page 14 for details.

Mic Input Volume Control Register (Index 0Eh)

D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default

Mute –

–

–

–

–

–

–

– 20dB – GN4 GN3 GN2 GN1 GN0 8008h

Mute

Mic Input Mute Control

“1” : Mute enabled

“0” : Mute disabled

20dB

Mic Boost Control

“1” : Fixed 20dB gain enabled

“0” : Fixed 20dB gain disabled

GN[4:0]

Mic Input Volume Control

These five bits select the gain applied to the Mic Input signal. The gain is programmable from -

34.5dB to 12dB in 1.5dB increments, providing a total of 32 programmable levels. Please refer to

Table 3 on page 14 for details.

Revision 1.5, October 11, 2002

11

Data Sheet

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