adau1361 Analog Devices, Inc., adau1361 Datasheet - Page 54

• Manufacturer Part Number: adau1361
• Description: Stereo, Low Power, 96 Khz, 24-bit Audio Codec With Integrated Pll
• Manufacturer: Analog Devices, Inc.

ADAU1361
R13: ALC Control 2 16403 (0x4013)
Bit 7
Table 40. ALC Control 2 Register
Bit
[7:4]
[3:0]
Bit Name
ALCATCK[3:0]
ALCDEC[3:0]
Bit 6
ALCATCK[3:0]
Description
ALC attack time. The attack time sets how fast the ALC starts attenuating after an increase in input level above
the target. A typical setting for music recording is 384 ms, and a typical setting for voice recording is 24 ms.
Setting
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
ALC de
below the target. A typical setting for music recording is 24.58 seconds, and a typical setting for voice recordin
is 1.54 seconds.
Setting
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
cay time. The decay time
Bit 5
Bit 4
Attack Time
6 ms (default)
12 ms
24 ms
48 ms
96 ms
192 ms
384 ms
768 ms
1.54 sec
3.07 sec
6.14 sec
12.29 sec
24.58 sec
49.15 sec
98.30 sec
196.61 sec
Decay Time
24 ms
48 ms
96 ms
192 ms
384 ms
768 ms
1.54 sec
3.07 sec
6.14 sec
12.29 sec
24.58 sec
49.15 sec
98.30 sec
196.61 sec
393.22 sec
786.43 sec
sets how fa
Rev. 0 | Page 54 of 80
Bit 3
st the ALC increases the PGA gain after a decrease in input level
Bit 2
ALCDEC[3:0]
Bit 1
Bit 0
g