adav804 Analog Devices, Inc., adav804 Datasheet - Page 52
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adav804
Manufacturer Part Number
adav804
Description
Audio Codec For Recordable Dvd
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADAV804.pdf
(54 pages)
- Current page: 52 of 54
- Download datasheet (548Kb)
ADAV804
Table 88. ALC Control Register 1
ADDRESS = 1111011
FSSEL1-0
GAINCNTR1-0
RECMODE1-0
LIMDET
ALCEN
Table 89. ALC Control Register 2
ADDRESS = 1111100
RECTH1-0
ATKTH1-0
RECTIME1-0
ATKTIME
FSSEL1-0
7,6
These bits should equal the sample rate of the ADC
00 = 96 kHz
01 = 48 kHz
10 = 32 kHz
11 = Reserved
These bits determine the limit of the counter used in Limited Recovery Mode
00 = 3
01 = 7
10 = 15
11 = 31
These bits determine which recovery mode is used by the ALC section
00 = No Recovery
01 = Normal Recovery
10 = Limited Recovery
11 = Reserved
Limit Detect Mode
0 = ALC is used when either channel exceeds the set limit
1 = ALC is used only when both channels exceed the set limit
ALC Enable
0 = Disable ALC
1 = Enable ALC
RES
7
Recovery Threshold
00 = -2 dB
01 = -3 dB
10 = -4 dB
11 = -6 dB
Attack Theshold
00 = 0 dB
01 = -1 dB
10 = -2 dB
11 = -4 dB
Recovery Time Selection
00 = 32 ms
01 = 64 ms
10 = 128 ms
11 = 256 ms
Attack Timer Selection
0 = 1 ms
1 = 4 ms
Default = 0x00
GAINCNTR1-0
5,4
Rev. Pr G | Page 52 of 54
RECTH1-0
6,5
Default = 0x52
RECMODE1-0
3,2
ATKTH1-0
4,3
Preliminary Technical Data
LIMDET
1
RECTIME1-0 ATKTIME
2,1
ALCEN
0
0
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