18 charge pump frequency (address 21h), Cs43l21 – Cirrus Logic CS43L21 User Manual
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DS723F1
CS43L21
Signal Processing Engine Overflow (SPEX_OVFL)
Default: 0
Function:
Indicates a digital overflow condition within the data path after the signal processing engine.
PCMX Overflow (PCMX_OVFL)
Default: 0
Function:
Indicates a digital overflow condition within the data path of the PCM mix.
6.18
Charge Pump Frequency (Address 21h)
Charge Pump Frequency (CHRG_FREQ[3:0])
Default: 0101
Function:
Alters the clocking frequency of the charge pump in 1/(N+2) fractions of the DAC oversampling rate, 128 Fs,
should the switching frequency interfere with other system frequencies such as those in the AM radio band.
Note:
Distortion performance may be affected.
7
6
5
4
3
2
1
0
CHRG_-
FREQ3
CHRG_-
FREQ2
CHRG_-
FREQ1
CHRG_-
FREQ0
Reserved
Reserved
Reserved
Reserved
N
CHRG_FREQ[3:0]
Frequency
0
0000
...
...
15
1111
64xFs
N
2
+
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