User guide

74 DS679F1
CS42L51
6.28 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, 128Fs,
should the switching frequency interfere with other system frequencies such as those in the AM radio band.
Note: Distortion performance may be affected.
76543210
CHRG_FREQ
3
CHRG_FREQ
2
CHRG_FREQ
1
CHRG_FREQ
0
Reserved Reserved Reserved Reserved
N CHRG_FREQ[3:0] Frequency
0 0000
... ...
15 1111
64xFs
N2+
-----------------