2 32khz sample rate group, 3 internal mclk/lrck ratio, 6 class h power control (address 06h) – Cirrus Logic CS42L55 User Manual
Page 45: 1 adaptive power adjustment, 7 miscellaneous control (address 07h), 1 digital mux, Class h power control, P 45, Internal mclk/lrck ratio” on, Cs42l55
DS773F1
45
CS42L55
6.5.2
32 kHz Sample Rate Group
Specifies whether or not the input/output sample rate is 8 kHz, 16 kHz or 32 kHz.
6.5.3
Internal MCLK/LRCK Ratio
Configures the internal MCLK/LRCK ratio.
6.6
Class H Power Control (Address 06h)
6.6.1
Adaptive Power Adjustment
Configures how the power to the headphone and line amplifiers adapts to the output signal level.
6.7
Miscellaneous Control (Address 07h)
6.7.1
Digital MUX
Selects the signal source for the ADC serial port.
32kGROUP
8 kHz, 16 kHz or 32 kHz sample rate?
0
No
1
Yes
Application:
“Serial Port Clocking” on page 34
RATIO[1:0]
Internal MCLK Cycles per LRCK
00
Reserved
01
125
10
Reserved
11
136
Application:
“Serial Port Clocking” on page 34
7
6
5
4
3
2
1
0
Reserved
Reserved
ADPTPWR1
ADPTPWR0
Reserved
Reserved
Reserved
Reserved
ADPTPWR[1:0]
Power Supply
00
Adapted to volume setting; Voltage level is determined by the sum of the relevant volume settings
01
Fixed - Headphone and Line Amp supply = +/-VCP/2
10
Fixed - Headphone and Line Amp supply = +/-VCP
11
Adapted to Signal; Voltage level is dynamically determined by the output signal
Application:
“Class H Amplifier” on page 27
7
6
5
4
3
2
1
0
DIGMUX
Reserved
Reserved
Reserved
ANLGZC
DIGSFT
Reserved
FREEZE
DIGMUX
SDOUT Signal Source
0
ADC
1
DSP Mix