Cirrus Logic CS42L55 - Manual (Page 60)

60 DS773F1
CS42L55
6.25 ADC & PCM Channel Mixer (Address 20h)
6.25.1 PCM Mix Channel Swap
Configures a mix/swap of the PCM Mix to the headphone/line outputs.
6.25.2 ADC Mix Channel Swap
Configures a mix/swap of the ADC Mix to the headphone/line outputs. .
6.26 Limiter Min/Max Thresholds (Address 21h)
6.26.1 Limiter Maximum Threshold
Sets the maximum level, below full-scale, at which to limit and attenuate the output signal at the attack
rate (LIMARATE -
“Limiter Release Rate” on page 62 ).
Note: Bass, Treble and digital gain settings that boost the signal beyond the maximum threshold may
trigger an attack.
7 6 5 4 3 2 1 0
PCMBSWP1 PCMBSWP0 PCMASWP1 PCMASWP0 ADCBSWP1 ADCBSWP0 ADCASWP1 ADCASWP0
PCMxSWP[1:0] PCM Mix to HP/LINEOUTA PCM Mix to HP/LINEOUTB
00 Left Right
01
(Left + Right)/2 (Left + Right)/2
10
11 Right Left
ADCxSWP[1:0] ADC Mix to HP/LINEOUTA Channel ADC Mix to HP/LINEOUTB Channel
00 Left Right
01
(Left + Right)/2 (Left + Right)/2
10
11 Right Left
7 6 5 4 3 2 1 0
LMAX2 LMAX1 LMAX0 CUSH2 CUSH1 CUSH0 Reserved Reserved
LMAX[2:0] Threshold Setting
000 0 dB
001 -3 dB
010 -6 dB
011 -9 dB
100 -12 dB
101 -18 dB
110 -24 dB
111 -30 dB
Application: “Limiter” on page 32