STAC9752A Datasheet, PDF (55/106 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
6
0
5
0
4:0
0
Name
BOOSTEN
Reserved
GN<4:0>
Description
Works with MICGAINVAL (Register 6Eh Bit D2)
BOOSTEN
MICGAINVAL =
Mic Gain Boost
0
0
=
0 dB
0
1
=
10 dB
1
0
=
20 dB
1
1
=
30 dB
Phone Volume Control
00000 = 12dB gain
00001 = 10.5dB gain
.....
01000 = 0dB gain
.....
11111 = -34.5dB gain
7.1.8.
LineIn Volume (Index 10h)
Default: 8808h.
D15
Mute
D7
D14
D13
Reserved
D6
D5
Reserved
Bit(s) Reset Value
Name
15
1
Mute
14:13
0
Reserved
12:8
0
GL<4:0>
7:5
0
Reserved
4:0
0
GR<4:0>
D12
GL4
D4
GR4
D11
GL3
D3
GR3
D10
GL2
D2
GR2
Description
0 = no mute
1 = mute linein
Bit not used, should read back 0
Left LineIn Volume Control
00000 = 12dB gain
00001 = 10.5dB gain
.....
01000 = 0dB gain
.....
11111 = -34.5dB gain
Bit not used, should read back 0
Right LineIn Volume Control
00000 = 12dB gain
00001 = 10.5dB gain
.....
01000 = 0dB gain
.....
11111 = -34.5dB gain
D9
GL1
D1
GR1
D8
GR0
D0
GR0
IDT™
55
AC’97 2.3 CODECS WITH STEREO MICROPHONE & UNIVERSAL JACK
STAC9752A/9753A
V 1.5 1206