CS4299-BQZR Cirrus Logic Inc, CS4299-BQZR Datasheet - Page 24

• Manufacturer Part Number: CS4299-BQZR
• Description: IC AC97 Codec With SRC
• Manufacturer: Cirrus Logic Inc

4.8
Mute
GL[4:0]
GR[4:0]
Default
The Stereo Analog Mixer Input Gain Registers are listed in Table 5.
24
24
Mute
D15
Stereo Analog Mixer Input Gain Registers (Index 10h - 18h)
D14
0
D13
0
Stereo Input Mute. Setting this bit mutes the respective input signal, both right and left inputs.
Left Volume Control. The GL[4:0] bits are used to control the gain level of the left analog input
source to the Input Mixer. Each step corresponds to 1.5 dB gain adjustment, with 01000 = 0 dB.
The total range is +12 dB to -34.5 dB gain. See Table 4 for further details.
Right Volume Control. The GR[4:0] bits are used to control the gain level of the right analog in-
put source to the Input Mixer. Each step corresponds to 1.5 dB gain adjustment, with 01000 =
0 dB. The total range is +12 dB to -34.5 dB gain. See Table 4 for further details.
8808h. This value corresponds to 0 dB gain and Mute ‘set’.
D12
GL4
GL3
D11
Table 4. Analog Mixer Input Gain Values
D10
GL2
Table 5. Stereo Volume Register Index
Register Index
GL1
D9
10h
12h
14h
16h
18h
Gx[4:0]
00000
00001
00111
01000
01001
11111
…
…
GL0
D8
PCM Out Volume
Gain Level
Line In Volume
Video Volume
+12.0 dB
+10.5 dB
-34.5 dB
D7
+1.5 dB
Aux Volume
-1.5 dB
CD Volume
0
0.0 dB
Function
…
…
D6
0
D5
0
GR4
D4
GR3
D3
GR2
CS4299-BQ
D2
CS4299-BQ
DS319-BQPP2
GR1
D1
GR0
D0