參數(shù)資料
型號: T7256A
英文描述: Compliance with the New ETSI PSD Requirement
中文描述: 符合新的ETSI PSD的要求
文件頁數(shù): 81/116頁
文件大?。?/td> 1056K
代理商: T7256A
Data Sheet
January 1998
T7256 Single-Chip NT1 (SCNT1) Transceiver
Lucent Technologies Inc.
77
Timing Characteristics
(continued)
Table 41. Clock Timing
(See Figure 29.)
* Includes the effect of phase steps generated by the digital phase-locked loop.
5-3460 (C)
Figure 29. Timing Diagram Referenced to SYN8K
Table 42. RESET Timing
5-3462 (C)
Figure 30. RESET Timing Diagram
Symbol
SYN8K
CKOUT
Parameter
Min
49.8
Typ
Max
50.2
Unit
%
Duty Cycle
Duty Cycle:
In 15.36 MHz Mode
In 10.24 MHz Mode
Rise or Fall Time
CKOUT Clock to Frame Sync (SYN8K)
CKOUT Clock Rise or Fall
40
23*
30
15
60
52*
50
%
%
ns
ns
ns
tR1, tF1
tCOLFH
tR2, tF2
Parameter
tRSLFL, tFLRSH
tRSLRSH
Description
Min
60
Max
Unit
ns
RESET Setup and Hold Time
RESET Low Time:
From Idle Mode or Normal Operation
From Power-on
375
1.5
μ
s
ms
SYN8K
CKOUT
tCOLFH
tR1
tR2
tF2
tF1
SYN8K
RESET
tRSLFL
tFLRSH
tRSLRSH
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