Datasheet
ADAV801
Rev. A | Page 57 of 60
ALC Control Register 2— Address = 1111100 (0x7C)
Table 142. ALC Control Register 2 Bit Map
7 6 5 4 3 2 1 0
Reserved RECTH1 RECTH0 ATKTH1 ATKTH0 RECTIME1 RECTIME0 ATKTIME
Table 143. ALC Control Register 2 Bit Descriptions
Bit Name Description
RECTH[1:0] Recovery threshold.
00 = −2 dB.
01 = −3 dB.
10 = −4 dB.
11 = −6 dB.
ATKTH[1:0] Attack threshold.
00 = 0 dB.
01 = −1 dB.
10 = −2 dB.
11 = −4 dB.
RECTIME[1:0] Recovery time selection.
00 = 32 ms.
01 = 64 ms.
10 = 128 ms.
11 = 256 ms.
ATKTIME Attack timer selection.
0 = 1 ms.
1 = 4 ms.
ALC Control Register 3—Address 1111101 (0x7D)
Table 144. ALC Control Register 3 Bit Map
7 6 5 4 3 2 1 0
ALC RESET ALC RESET ALC RESET ALC RESET ALC RESET ALC RESET ALC RESET ALC RESET
Table 145. ALC Control Register 3 Bit Description
Bit Name Description
ALC RESET
A write to this register restarts the ALC operation. The value written to this register is irrelevant. A read from this
register gives the gain reduction factor.