CS43L41-KZ CIRRUS [Cirrus Logic], CS43L41-KZ Datasheet - Page 18

• Manufacturer Part Number: CS43L41-KZ
• Description: Low Power 24-Bit, 96 kHz DAC with Volume Control?
• Manufacturer: CIRRUS [Cirrus Logic]

4.7
4.8
18
A = B
A = B
A = B
0
1
7
7
CHANNEL A VOLUME = CHANNEL B VOLUME
SOFT RAMP OR ZERO CROSS ENABLE
Volume and Mixing Control Register (address 02h)
Access:
Default:
Function:
Volume and Mixing Control Register (address 02h)
Access:
Default:
Function:
Disabled
Enabled
R/W in I
0 - Disabled
The AOUTA and AOUTB volume levels are independently controlled by the A and the B Channel Vol-
ume Control Bytes when this function is disabled. The volume on both AOUTA and AOUTB are de-
termined by the A Channel Volume Control Byte and the B Channel Byte is ignored when this function
is enabled.
R/W in I
10 - Soft Ramp enabled.
Soft Ramp Enable
Soft Ramp allows level changes, both muting and attenuation, to be implemented by incrementally
ramping, in 1/8 dB steps, from the current level to the new level at a rate of 1dB per 8 left/right clock
periods.
Zero Cross Enable
Zero Cross Enable dictates that signal level changes, either by attenuation changes or muting, will
occur on a signal zero crossing to minimize audible artifacts. The requested level change will occur
after a timeout period between 512 and 1024 sample periods (10.7 ms to 21.3 ms at 48 kHz sample
rate) if the signal does not encounter a zero crossing. The zero cross function is independently mon-
itored and implemented for each channel.
Table 7. A=B Volume Control Enable
Soft
Soft
6
6
2
2
C and write only in SPI.
C and write only in SPI.
Zero Cross
Zero Cross
5
5
MODE
ATAPI4
ATAPI4
4
4
ATAPI3
ATAPI3
3
3
ATAPI2
ATAPI2
2
2
ATAPI1
ATAPI1
1
1
CS43L41
DS473PP1
ATAPI0
ATAPI0
0
0