CS42L52_08 CIRRUS [Cirrus Logic], CS42L52_08 Datasheet - Page 69
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: 69 of 82
- Download datasheet (2Mb)
DS680F1
6.34.2 ALC Minimum Threshold
6.35
6.35.1 Noise Gate All Channels
6.35.2 Noise Gate Enable
NGALL
7
Noise Gate Control (Address 2Dh)
Sets the minimum level at which to disengage the ALC’s attenuation or amplify the input signal at the re-
lease rate (ALCRRATE -
CMIN thresholds.
Notes:
1. This setting is usually set slightly below the ALCMAX threshold.
Sets which channels are attenuated when clipping on any single channel occurs.
Configures the noise gate.
ALCMIN[2:0]
000
001
010
011
100
101
110
111
Application:
NGALL
0
1
Application:
NG
0
1
Application:
NG
6
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
Noise Gate triggered by:
Individual channel; Any channel that falls below the threshold setting triggers the noise gate attenuation for
both channels.
Both channels A & B; Both channels must fall below the threshold setting for the noise gate attenuation to
take effect.
“Noise Gate” on page 28
Noise Gate Status
Disabled
Enabled
“Noise Gate” on page 28
NG_BOOST
5
“ALC Release Rate” on page
THRESH2
4
5/13/08
THRESH1
3
68) until levels lie between the ALCMAX and AL-
THRESH0
2
NGDELAY1
1
CS42L52
NGDELAY0
0
69
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