Cirrus Logic CS43L21 - Manual (Page 54)

54 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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