cs42l52 Cirrus Logic, Inc., cs42l52 Datasheet - Page 68

• Manufacturer Part Number: cs42l52
• Description: Low-power, Stereo Codec W/ Headphone & Speaker Amps
• Manufacturer: Cirrus Logic, Inc.

68
6.33
6.33.1 ALC Release Rate
6.34
6.34.1 ALC Maximum Threshold
ALCMAX2
Reserved
7
7
ALC Release Rate (Address 2Bh)
ALC Threshold (Address 2Ch)
Sets the rate at which the ALC releases the analog and/or digital attenuation from levels below the
MIN[2:0] threshold
VOL[5:0]
Notes:
1. The ALC release rate is user-selectable but is also a function of the sampling frequency, Fs, and the
2. The Release Rate setting must always be slower than the Attack Rate.
Sets the maximum level, below full scale, at which to limit and attenuate the input signal at the attack rate
(ALCARATE -
ALCRRATE[5:0]
00 0000
···
11 1111
Application:
MAX[2:0]
000
001
010
011
100
101
110
111
Application:
ANLGSFTx
page
ALCMAX1
Reserved
(“PGAx Volume” on page
49) setting.
6
6
“ALC Attack Rate” on page
(“Ch. x Analog Soft Ramp” on page
Release Time
Fastest Release
···
Slowest Release
“Automatic Level Control (ALC)” on page 27
Threshold Setting
0 dB
-3 dB
-6 dB
-9 dB
-12 dB
-18 dB
-24 dB
-30 dB
“Automatic Level Control (ALC)” on page 27
ALCRRATE5
(“ALC Minimum Threshold” on page
ALCMAX0
5
5
ALCRRATE4
56) and ADCxVOL[7:0]
ALCMIN2
4
4
67).
5/13/08
ALCRRATE3
ALCMIN1
49) and ANLGZCx
3
3
69) and returns the signal level to the PGAx-
(“ADCx Volume” on page
ALCRRATE2
ALCMIN0
2
2
(“Ch. x Analog Zero Cross” on
ALCRRATE1
Reserved
1
1
57) setting.
CS42L52
ALCRRATE0
Reserved
DS680F1
0
0