CS4299-BQZR Cirrus Logic Inc, CS4299-BQZR Datasheet - Page 21

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

DS319-BQPP2
4.3
Mute
ML[4:0]
ML5
MR[4:0]
MR5
Default
4.4
Mute
MM[5:0]
MM5
Default
Mute
Mute
D15
D15
Alternate Volume Register (Index 04h)
Mono Volume Register (Index 06h)
D14
D14
0
0
ML5
D13
D13
0
sponds to 1.5 dB gain adjustment, with 00000 = 0 dB. The total range is 0 dB to -46.5 dB atten-
uation. See Table 2 for further attenuation levels.
-46.5 dB by forcing ML[4:0] to a ‘1’ state. ML[5:0] will read back 011111 when ML5 has been
‘set’. Table 2 summarizes this behavior.
sponds to 1.5 dB gain adjustment, with 00000 = 0 dB. The total range is 0 dB to -46.5 dB atten-
uation. See Table 2 for further attenuation levels.
-46.5 dB by forcing MR[4:0] to a ‘1’ state. MR[5:0] will read back 011111 when MR5 has been
‘set’. Table 2 summarizes this behavior.
Alternate Mute. Setting this bit mutes the ALT_LINE_OUT_L/R output signals.
Alternate Volume Left. These bits control the left alternate output volume. Each step corre-
Alternate Volume Left Max Attenuation. Setting ML5 sets the left channel attenuation to
Alternate Volume Right. These bits control the right alternate output volume. Each step corre-
Alternate Volume Right Max Attenuation. Setting MR5 sets the right channel attenuation to
8000h. This value corresponds to 0 dB attenuation and Mute ‘set’.
Mono Mute. Setting this bit mutes the MONO_OUT signal.
Mono Volume. These bits control the mono output volume. Each step corresponds to 1.5 dB
gain adjustment, with a total available range from 0 dB to -46.5 dB attenuation. See Table 2 for
further attenuation levels.
Mono Volume Max Attenuation. 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’. Table 2
summarizes this behavior.
8000h. This value corresponds to 0 dB attenuation and Mute ‘set’.
ML4
D12
D12
0
ML3
D11
D11
0
Table 2. Analog Mixer Output Attenuation
D10
ML2
D10
0
Mx[5:0]
000000
000001
011111
100000
111111
Write
…
...
ML1
D9
D9
0
ML0
D8
D8
Mx[5:0]
0
000000
000001
011111
011111
011111
Read
…
...
D7
D7
0
0
-46.5 dB
-46.5 dB
-46.5 dB
-1.5 dB
D6
D6
0
Level
0
Gain
0 dB
...
...
MM5
MR5
D5
D5
MM4
MR4
D4
D4
MM3
MR3
D3
D3
MM2
MR2
CS4299-BQ
D2
D2
CS4299-BQ
MM1
MR1
D1
D1
MM0
MR0
D0
D0
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