2 spkr/hp pin status (read only), 40 charge pump frequency (address 34h), 1 charge pump frequency – Cirrus Logic CS42L52 User Manual
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DS680F2
73
CS42L52
3/1/13
6.39.2
SPKR/HP Pin Status (Read Only)
Indicates the status of the SPKR/HP pin.
6.40
Charge Pump Frequency (Address 34h)
6.40.1
Charge Pump Frequency
Sets the charge pump frequency on FLYN and FLYP.
Note:
The headphone output THD+N performance may be affected.
SPKR/HP
Pin State
0
Pulled Low
1
Pulled High
7
6
5
4
3
2
1
0
CHGFREQ3
CHGFREQ2
CHGFREQ1
CHGFREQ0
Reserved
Reserved
Reserved
Reserved
CHGFREQ[3:0]
N
0000
0
...
0101
5
...
1111
15
Formula:
Frequency
= (64xFs)/(N+2)
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