STAC9752A Datasheet, PDF (59/106 Pages) Integrated Device Technology – AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK

STAC9752A/9753A
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
PC AUDIO
Bit(s) Reset Value
7:3
0
2:0
0
Name
Reserved
SR2:SR0
Description
Bits not used, should read back 0
Right Channel Input Select
000 = Mic
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
7.1.14.
Record Gain (1Ch)
Default: 8000h (corresponding to 0 dB gain with mute on)
D15
Mute
D7
D14
D13
D12
Reserved
D6
D5
D4
Reserved
D11
GL3
D3
GR3
D10
GL2
D2
GR2
Bit(s)
15
14:12
Reset Value
1
0
11:8
0
7:4
0
3:0
0
Name
MUTE
Reserved
GL<3:0>
Reserved
GR<3:0>
Description
MUTES RECORD GAIN
Bits not used, should read back 0
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
7.1.15.
General Purpose (20h)
Default: 0000h
D15
D14
D13
POP BYP Reserved
3D
D7
D6
D5
LOOPBACK
D12
D11
D10
Reserved
D4
D3
D2
Reserved
D9
GL1
D1
GR1
D9
MIX
D1
D8
GL0
D0
GR0
D8
MS
D0
IDT™
59
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
V 1.5 1206