CS4362_08 Datasheet, PDF (20/42 Pages) Cirrus Logic – 114 dB, 192 kHz 6-Channel D/A Converter

4.3.5
CS4362
Auto-Mute (AMUTE)
Default = 1
0 - Disabled
1 - Enabled
Function:
The Digital-to-Analog converter output will mute following the reception of 8192 consecutive audio sam-
ples of static 0 or -1. A single sample of non-static data will release the mute. Detection and muting is
done independently for each channel. The quiescent voltage on the output will be retained and the Mute
Control pin will go active during the mute period. The muting function is affected, similar to volume control
changes, by the Soft and Zero Cross bits in the Mode Control 3 register.
4.3.6
Mute Pin Control (MUTEC1, MUTEC0)
Default = 00
00 - Six mute control signals
01, 10 - One mute control signal
11 - Three mute control signals
Function:
Selects how the internal mute control signals are routed to the MUTEC1 through MUTEC6 pins. When
set to ‘00’, there is one mute control signal for each channel: AOUT1A on MUTEC1, AOUT1B on
MUTEC2, etc. When set to either ‘01’ or ‘10’, there is a single mute control signal on the MUTEC1 pin.
When set to ‘11’, there are three mute control signals, one for each stereo pair: AOUT1A and AOUT1B
on MUTEC1, AOUT2A and AOUT2B on MUTEC2, and AOUT3A and AOUT3B on MUTEC3.
4.4 Filter Control (address 04h)
7
Reserved
0
6
Reserved
0
5
Reserved
0
4
FILT_SEL
0
3
Reserved
0
2
DEM1
0
1
DEM0
0
0
RMP_DN
0
4.4.1
Interpolation Filter Select (FILT_SEL)
Default = 0
0 - Fast roll-off
1 - Slow roll-off
Function:
This Function allows the user to select whether the interpolation filter has a fast or slow roll off. For filter
characteristics please see Section 1. Characteristics and Specifications.
4.4.2
De-Emphasis Control (DEM)
Default = 00
00 - Disabled
01 - 44.1 kHz
10 - 48 kHz
11 - 32 kHz
Function:
20
DS257F2