STAC9752 datasheet(55/95 Pages) IDT

55 / 95 page

STAC9752/9753

TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING

IDT™

STAC9752/9753

REV 3.3 1206

TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING

8.1.13.

Record Select (1Ah)

Default: 0000h (corresponding to Microphone in)

Used to select the record source independently for right and left.

8.1.14.

Record Gain (1Ch)

Default: 8000h (corresponding to 0 dB gain with mute on)

7:5

RESERVED

Bit not used, should read back 0

4:0

GR<4:0>

Right PCM Volume Control

00000 = 12dB gain

00001 = 10.5dB gain

.....

01000 = 0dB gain

.....

11111 = -34.5dB gain

D15

D14

D13

D12

D11

D10

RESERVED

SL2

SL1

SL0

RESERVED

SR2

SR1

SR0

Bit(s)

Reset Value

Name

Description

15:11

RESERVED

Bits not used, should read back 0

10:8

SL2:SL0

LEFT CHANNEL INPUT SELECT

000 = Microphone

001 = CD In (left)

010 = Video In (left)

011 = Aux In (left)

100 = Line In (left)

101 = Stereo Mix (left)

110 = Mono Mix

111 = Phone

7:3

RESERVED

Bits not used, should read back 0

2:0

SR2:SR0

RIGHT CHANNEL INPUT SELECT

000 = Microphone

001 = CD In (right)

010 = Video In (right)

011 = Aux In (right)

100 = Line In (right)

101 = Stereo Mix (right)

110 = Mono Mix

111 = Phone

D15

D14

D13

D12

D11

D10

Mute

RESERVED

GL3

GL2

GL1

GL0

RESERVED

GR3

GR2

GR1

GR0

Bit(s)

Reset Value

Name

Description

MUTE

Mutes RECORD GAIN

14:12

RESERVED

Bits not used, should read back 0

Bit(s)

Reset Value

Name

Description

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