Preliminary Data Sheet
September 2001
Codec Chip Set
T8531A/T8532 Multichannel Programmable
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
Copyright 2001 Agere Systems Inc.
All Rights Reserved
September 2001
DS01-320ALC (Replaces DS01-030ALC)
For additional information, contact your Agere Systems Account Manager or the following:
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, FAX 610-712-4106 (In CANADA:
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, FAX 610-712-4106)
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Tel. (852) 3129-2000
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(86) 21-5047-1212
(Shanghai),
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EUROPE:
Tel. (44) 7000 624624
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Ordering Information
Appendix A. Transmit Path Group Delay vs. Bit Offset
Receive path group delay is a fixed value and is specified in the data sheet.
Note:
Bit offset values for partial time segments would incrementally add to the base data delay value by 488 ns
per bit offset for an SCK of 2.048 MHz and in increments of 244 ns per bit offset for an SCK of 4.096 MHz.
Table 42. Transmit Path Group Delay vs. Bit Offset
Telcordia Technologiesis a trademark of Telcordia Technologies, Inc.
Device Code
T-8531A - - - TL-DB
T-8531A - - - TL-DT
T-8532 - - - JL-DB
T-8532 - - - JL-DT
Package
Temperature
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
Comcode
108888272
108888678
108697301
700005740
64-Pin TQFP, Dry pack tray
64-Pin TQFP, Dry-bagged, Tape & Reel
64-Pin MQFP, Dry pack tray
64-Pin MQFP, Dry-bagged, Tape & Reel
Bit Offset in Whole Time
Segments
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Bit Offset
SCK = 2.048 MHz
0
16
32
48
64
80
96
112
128
144
160
176
192
208
224
240
Bit Offset
SCK = 4.096 MHz
0
32
64
96
128
160
192
224
256
288
320
352
384
416
448
480
T
X
Data Delay (μs)
f = 1600 Hz
273.4
281.2
289.0
296.8
304.6
312.4
320.2
328.0
335.8
343.6
351.4
359.2
367.0
250.0
257.8
265.6