參數(shù)資料
型號: T8534
英文描述: T8533/34 Quad Programmable Line Card Signal Processor
中文描述: T8533/34四線卡可編程信號處理器
文件頁數(shù): 35/48頁
文件大小: 890K
代理商: T8534
Preliminary Data Sheet
July 2001
Signal Processor
T8533/34 Quad Programmable Line Card
Agere Systems Inc.
35
Timing Characteristics
(continued)
Table 15. Timing Characteristics
(continued)
* PCM clock (BCLK) must be synchronous with both FS and MCLK, if used. If MCLK is used, then the rising edge of MCLK must coincide with
the rising edge of BCLK within 10 ns.
The t
SXBDLY
delay is from either DCLK or CS, whichever transition is later, for the first bit of the byte.
Table 16. Echo Canceller Characteristics
Symbol
t
IDHOLD
Parameter
Test Conditions
PCM clock frequency
= 16.384 MHz
PCM clock frequency
= 16.384 MHz
Serial clock frequency
= 4.096 MHz, PCM
clock frequency =
16.384 MHz
Serial clock frequency
= 4.096 MHz, PCM
clock frequency =
16.384 MHz
I
L
= 15 mA,
C
LOAD
= 100 pF
Serial clock frequency
= 4.096 MHz
Serial clock frequency
= 4.096 MHz
Serial clock frequency
= 4.096 MHz
Serial clock frequency
= 4.096 MHz
Serial clock frequency
= 4.096 MHz
Serial clock frequency
= 4.096 MHz
Min
4
Typ
Max
Unit
ns
PCM Bus Input Data Hold Time
t
IDSETUP
PCM Bus Input Data Setup
Time
Clock Edge Rise Time
7
ns
t
RISE
8
ns
t
FALL
Clock Edge Fall Time
8
ns
t
RISE
,
t
FALL
t
CSBHOLD
Line Driver Rise/Fall Time (DO
and DX outputs)
Chip Select Hold Time, Byte-by-
Byte Mode
Serial Bus Output Data Delay,
Byte-by-Byte Mode
Chip Select Setup Time, Byte-
by-Byte Mode
Serial Bus Data Hold Time,
Byte-by-Byte Mode
Serial Bus Data Setup Time,
Byte-by-Byte Mode
Chip Select Hold Time, Byte-by-
Byte Mode
30
ns
4
ns
t
SXBDLY
9
ns
t
CSBSETUP
7
ns
t
SDBHOLD
4
ns
t
SDBSETUP
7
ns
t
CSBHOLD
4
ns
Parameter
Echo Return Loss
Convergence Time
Symbol
Test Conditions
Min
Typ
45
100+
Max
Unit
dB
dB/s
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