CS43130 Datasheet, PDF (57/137 Pages) Cirrus Logic – 130-dB, 32-Bit High-Performance DAC with Integrated Headphone Driver

CS43130
5.4 Alert Mixing Shutdown
2. Power up and verify communication with CS43130. If there is no communication, it is possible that the crystal did
not start. Check power rails and load capacitance and try again.
3. Clear PDN_CLKOUT in the Power Down Control (0x20000) register. This sets the clock output at MCLK_INT/2
frequency from CLKOUT pin.
4. Measure the frequency and verify that it is within acceptable range of the desired frequency. If yes, continue
normal operation. If not, power down the chip, change the load capacitor values and go back to step 2.
Note: These steps need to be performed only once per PCB.
5.4 Alert Mixing Shutdown
To prevent a DSD mute pattern from turning off the DAC while mixing DSD data with PCM data, turn off the auto mute by
clearing the DSD_AMUTE bit.
5.5 Enable/Disable Nonoversampling Filter
If the user decides to use the nonoversampling filter, the following sequences must be followed to enable/disable the
nonoversampling filter.
5.5.1 Nonoversampling Filter Enable Sequence
TASK
Configure PCM filter
REGISTER/BIT FIELDS
0x10010
0xC0001
PCM Filter Option 0x90000
FILTER_SLOW_FASTB
PHCOMP_LOWLATB
NOS
Reserved
HIGH_PASS
DEEMP_ON
0x10010
VALUE
0x99
0x0C
0x22
0
0
1
0 00
1
0
0x0
5.5.2 Nonoversampling Filter Disable Sequence
TASK
Configure PCM filter
REGISTER/BIT FIELDS
0x10010
0xC0001
PCM Filter Option 0x90000
FILTER_SLOW_FASTB
PHCOMP_LOWLATB
NOS
Reserved
HIGH_PASS
DEEMP_ON
0x10010
VALUE
0x99
0x0D
0x02
0
0
0
0 00
1
0
0x0
DESCRIPTION
Nonoversampling filter is selected
High-pass filter is selected
DESCRIPTION
High-pass filter is selected
DS1073F1
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