CS53L32A 查看數據表（PDF） - Cirrus Logic
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CS53L32A Datasheet PDF : 40 Pages
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CS53L32A
Soft Ramp and Zero Cross Enable
Soft Ramp and Zero Cross Enable dictates that signal level changes, either by attenuation changes
or muting, will occur in 1 dB steps and be implemented on a signal zero crossing. The level change
will occur after a timeout period of 512 sample periods in BRM or 1024 sample periods in HRM (ap-
proximately 10.7 ms at 48 kHz sample rate) if the signal does not encounter a zero crossing. The zero
cross function is independently monitored and implemented for each channel.
SOFT/ZC
00
01
10
11
.
SOFT
0
1
ANALOG VOLUME CONTROL MODES
Change volume immediately
Change volume at next zero cross time
Change volume in 1 dB steps
Change volume in 1 dB steps at every zero cross time
Table 9. Analog Volume Control
DIGITAL VOLUME CONTROL MODES
Change volume immediately
Change volume in1/8 dB steps
Table 10. Digital Volume Control
4.11 INDEPENDENT VOLUME CONTROL ENABLE
Analog I/O Control Register (address 03h)
7
MUTEL
6
MUTER
5
SOFT
4
3
ZC
RESERVED
Access:
R/W in Two Wire Mode and write only in SPI.
2
INDVC
1
0
L=R
HPFREEZE
Default:
0 - Enabled
Function:
When this function is disabled, the AIN_L and AIN_R volume levels are controlled by the Left and
Right Volume Control registers and the Independent Analog Gain Control registers are ignored.
When this function is enabled, the volume levels are determined by both the Volume Control registers
and the Independent Analog Gain Control registers.
INDVC
0
1
MODE
Enabled
Frozen
Table 11. Independent Volume Control Enable
DS513F1
23
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