T8531TLDB Agere Systems, Inc., T8531TLDB Datasheet - Page 36

• Manufacturer Part Number: T8531TLDB
• Description: CODEC, AMuLaw CODEC, Line Card Signal Processor for CODEC Chip Set, 64TQFP
• Manufacturer: Agere Systems, Inc.

Codec Chip Set
Software Interface
Table 24. Bit Map for T8532 Channel Control Register 1 at 0x1508—0x150F and 0x1548—0x154F
Table 25. T8532 Control Register 1: Transmit Gain
Table 26. T8532 Control Register 1: Analog Termination Impedance
36
PWR
15
Bit 4
TXGAIN2
TI3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Bit 7
0
0
0
0
1
1
1
1
Not used
14—8
Bit 3
TI2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
(continued)
7
TXGAIN1
Bit 6
0
0
1
1
0
0
1
1
TX gain
Bit 2
TI1
6
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
Bit Number and Function
TXGAIN0
5
Bit 5
0
1
0
1
0
1
0
1
Bit 1
TI0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
4
Termination impedance
Gain (See equation on page 13.)
3
12.04 dB transmit gain
12.04 dB transmit gain
12.04 dB transmit gain
12.04 dB transmit gain
3.01 dB transmit gain
6.02 dB transmit gain
9.03 dB transmit gain
0 dB transmit gain
2
0.0000
0.0583
0.1417
0.2250
0.3083
0.3917
0.5000
0.5583
0.6417
0.7083
0.8083
0.8917
0.9750
1.0583
1.2167
2.0000
Mode
Agere Systems Inc.
February 2002
1
LPBK
0