STAC9752 Datasheet, PDF (56/95 Pages) Integrated Device Technology – TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING

STAC9752/9753
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING
Bit(s) Reset Value
11:8
0
7:4
0
3:0
0
Name
GL<3:0>
RESERVED
GR<3:0>
Description
Left Channel Volume Control
0000 = 0dB gain
0001 = 1.5dB gain
....
1111 = 22.5dB gain
Bits not used, should read back 0
Right Channel Volume Control
0000 = 0dB gain
0001 = 1.5dB gain
....
1111 = 22.5dB gain
8.1.15.
General Purpose (20h)
Default: 0000h
D15
D14
D13
D12
D11
D10
D9
D8
POP BYP RESERVED
3D
RESERVED
MIX
MS
D7
D6
D5
D4
D3
D2
D1
D0
LOOPBACK
RESERVED
Bit(s)
15
14
13
12:10
9
8
7
6:0
Reset
Value
0
0
0
0
0
0
0
0
Name
POP BYPASS
RESERVED
3D
RESERVED
MIX
MS
LOOPBACK
RESERVED
Description
0 = Normal
1 = DAC bypasses mixer and connects directly to Line Out, Headphone
Out and Mono Out.
Bit not used, should read back 0
0 = 3D EFFECT disabled
1 = 3D EFFECT enabled
Bits not used, should read back 0
Mono Output select (0 = Mix, 1 = Microphone)
Microphone select (0 = Microphone1, 1 = Microphone2)
1 = Enables ADC to DAC Loopback Test
0 = Loopback Disabled
Do not send in conflicting data on AC-Link while running this.
Bits not used, should read back 0
8.1.16.
3D Control (22h)
Default: 0000h
D15
D14
D13
D7
D6
D5
RESERVED
D12
D11
D10
RESERVED
D4
D3
D2
DP3
DP2
D9
D8
D1
D0
RESERVED
IDT™
56
STAC9752/9753
TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH HEADPHONE DRIVE, SPDIF OUTPUT MICROPHONE & JACK SENSING
REV 3.3 1206