4 de-emphasis control (bit 0), 6 mute control - address 06h, 1 auto-mute (bit 5) – Cirrus Logic CS4270 User Manual
Page 36: 2 adc channel a & b mute (bits 4:3), 3 mute polarity (bit 2), 4 dac channel a & b mute (bits 1:0), 7 dac channel a volume control - address 07h, P 36, Cs4270
36
DS686F1
CS4270
8.5.4
De-Emphasis Control (Bit 0)
Function:
When this bit is set, the standard 50/15
s digital de-emphasis filter is applied on the DAC output.
shows the filter response. NOTE: De-emphasis is available only in Single-Speed Mode.
When this bit is cleared, no de-emphasis is applied to the DAC outputs.
8.6
Mute Control - Address 06h
8.6.1
Auto-Mute (Bit 5)
Function:
When set, enables the Auto-Mute function.
Section 5.2.6 “Auto-Mute” on page 23
8.6.2
ADC Channel A & B Mute (Bits 4:3)
Function:
When this bit is set, the output of the ADC for the selected channel will be muted.
8.6.3
Mute Polarity (Bit 2)
Function:
The MUTEA and MUTEB pins (pins 24 and 21) are active low by default. When this bit is set, these pins
are active high.
8.6.4
DAC Channel A & B Mute (Bits 1:0)
Function:
When this bit is set, the output of the DAC for the selected channel will be muted.
8.7
DAC Channel A Volume Control - Address 07h
Function:
Section 8.8 DAC Channel B Volume Control - Address 08h
.
7
6
5
4
3
2
1
0
Reserved
Reserved
AUTO_MUTE
MUTE_ADC_
CHB
MUTE_ADC_
CHA
MUTE_POL
MUTE_DAC_
CHB
MUTE_DAC_
CHA
7
6
5
4
3
2
1
0
DACA_
VOL7
DACA_
VOL6
DACA_
VOL5
DACA_
VOL4
DACA_
VOL3
DACA_
VOL2
DACA_
VOL1
DACA_
VOL0