CS4294-JQ CIRRUS [Cirrus Logic], CS4294-JQ Datasheet - Page 20

• Manufacturer Part Number: CS4294-JQ
• Description: SoundFusion Audio/Docking Codec 97 (AMC 97)
• Manufacturer: CIRRUS [Cirrus Logic]

6.1.5
Mute
GL[4:0]
GR[4:0]
Default
6.1.6
SL[2:0]
SR[2:0]
Default
20
Mute
D15
D15
These registers control the gain levels of the analog input sources to the Input Mixer. The analog in-
puts associated with registers 10h-18h are found in Table 4.
When capturing PCM data, this register controls the input MUX for the ADCs. Table 5 below lists
the possible values for each input.
Stereo Analog Mixer Input Gain (Index’s 10h - 12h, 16h - 18h)
D14
Input Mux Select (Index 1Ah)
D14
When set mutes the respective input. Setting this bit mutes both right and left inputs.
Left Volume Control. Least significant bit represents 1.5 dB with 01000 = 0 dB. The total range is 12 dB
to -34.5 dB. See Table 3.
Right Volume Control. Least significant bit represents 1.5 dB with 01000 = 0 dB. The total range is 12
dB to -34.5 dB. See Table 3.
Left Channel ADC input source select.
Right Channel ADC input source select.
0000h, MIC inputs selected for both channels.
8808h, 0 dB gain with Mute enabled.
D13
D13
GL4
D12
D12
GL3
D11
D11
Register Index
Sx2 - Sx0
GL2
SL2
D10
D10
Table 4. Stereo Volume Register Index
10h
12h
16h
18h
0
1
2
3
4
5
6
7
Table 5. Input Mux Selection
GL1
SL1
D9
D9
GL0
SL0
D8
D8
D7
D7
PCM Out Volume
Record Source
Line IN Volume
Not Available
Not Available
Aux Volume
CD Volume
D6
D6
Stereo Mix
AUX Input
Line Input
Mono Mix
Function
CD Input
MIC
D5
D5
GR4
D4
D4
GR3
D3
D3
GR2
SR2
D2
D2
CS4294
GR1
SR1
D1
D1
DS326PP4
GR0
SR0
D0
D0