CS4201 Datasheet, PDF (24/68 Pages) Cirrus Logic – CrystalClear Audio Codec 97 with headphone Amplifier

CS4201
4.3 Mono Volume Register (Index 06h)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Mute 0
0
0
0
0
0
0
0
0 MM5 MM4 MM3 MM2 MM1 MM0
Mute
Mono Mute. Setting this bit mutes the MONO_OUT output signal.
MM[5:0]
Mono Volume Control. The MM[5:0] bits control the mono output volume. Each step corre-
sponds to 1.5 dB gain adjustment, with a total available range from 0 dB to -46.5 dB attenu-
ation. Setting the MM5 bit sets the mono attenuation to -46.5 dB by forcing MM[4:0] to a ‘1’
state. MM[5:0] will read back 011111 when MM5 has been ‘set’. See Table 2 on page 23 for
further attenuation levels.
Default
8000h. This value corresponds to 0 dB attenuation and Mute ‘set’.
4.4 PC_BEEP Volume Register (Index 0Ah)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Mute 0
0
0
0
0
0
0
0
0
0 PV3 PV2 PV1 PV0 0
Mute
PC_BEEP Mute. Setting this bit mutes the PC_BEEP input signal.
PV[3:0]
PC_BEEP Volume Control. The PV[3:0] bits control the gain levels of the PC_BEEP input
source to the Input Mixer. Each step corresponds to 3 dB gain adjustment, with 0000 = 0 dB.
The total range is 0 dB to -45 dB attenuation.
Default
0000h. This value corresponds to 0 dB attenuation and Mute ‘clear’.
This register has no effect on the PC_BEEP volume during RESET#.
4.5 Phone Volume Register (Index 0Ch)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Mute 0
0
0
0
0
0
0
0
0
0 GN4 GN3 GN2 GN1 GN0
Mute
GN[5:0]
Default
Phone Mute. Setting this bit mutes the Phone input signal.
Phone Volume Control. The GN[4:0] bits control the gain level of the Phone 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 attenuation. See Table 4 on page 26 for further attenuation
levels.
8008h. This value corresponds to 0 dB attenuation and Mute ‘set’.
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DS483PP3