CS42L52_08 CIRRUS [Cirrus Logic], CS42L52_08 Datasheet - Page 66
CS42L52_08
Manufacturer Part Number
CS42L52_08
Description
2Low-power, Stereo CODEC w/ Headphone & Speaker Amps
Manufacturer
CIRRUS [Cirrus Logic]
Datasheet
1.CS42L52_08.pdf
(82 pages)
- Current page: 66 of 82
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66
6.29.4 Limiter Zero Cross Disable
6.30
6.30.1 Peak Detect and Limiter
6.30.2 Peak Signal Limit All Channels
6.30.3 Limiter Release Rate
LIMIT
7
Limiter Control 2, Release Rate (Address 28h)
Configures an override of the digital zero-cross setting.
Configures the peak-detect and limiter circuitry.
Sets how channels are attenuated when the limiter is enabled.
Sets the rate at which the limiter releases the digital attenuation from levels below the CUSH[2:0] thresh-
old
(“Master Volume Control” on page
Note:
and the DIGSFT
LIMZCDIS
0
1
Application:
LIMIT
0
1
Application:
LIMIT_ALL
0
1
Application:
LIMRRATE[5:0]
00 0000
···
11 1111
Application:
(“Limiter Cushion Threshold” on page
LIMIT_ALL
The limiter release rate is user-selectable but is also a function of the sampling frequency, Fs,
6
Limiter Zero Cross Disable
OFF; Limiter Attack Rate is dictated by the DIGZC
ON; Limiter volume changes take effect in one step, regardless of the DIGZC setting.
“Limiter” on page 31
Limiter Status
Disabled
Enabled
“Limiter” on page 31
Release Time
Fastest Release
···
Slowest Release
“Limiter” on page 31
Limiter action:
Apply the necessary attenuation on a specific channel only when the signal amplitude on that specific chan-
nel rises above LMAX.
Remove attenuation on a specific channel only when the signal amplitude on that specific channel falls below
CUSH.
Apply the necessary attenuation on BOTH channels when the signal amplitude on any ONE channel rises
above LMAX.
Remove attenuation on BOTH channels only when the signal amplitude on BOTH channels fall below CUSH.
“Limiter” on page 31
(“Digital Soft Ramp” on page
LIMRRATE5
5
LIMRRATE4
63) setting.
4
65) and returns the analog output level to the MSTxVOL[7:0]
5/13/08
53) and DIGZC
LIMRRATE3
3
(“Digital Zero Cross” on page
(“Digital Zero Cross” on page
LIMRRATE2
2
LIMRRATE1
53) setting
1
CS42L52
LIMRRATE0
53) setting.
DS680F1
0
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