參數(shù)資料
型號: PM5372-BI
英文描述: Telecommunication IC
中文描述: 通信集成電路
文件頁數(shù): 161/169頁
文件大小: 989K
代理商: PM5372-BI
TSE Transmission Switch Element Datasheet
Released
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-1991258, Issue 7
161
18 A.C. Timing Characteristics
Ta=-40°C to Tj=+125°C, VVDDI = VVDDItypical ± 5%, VVDDO = VDDOtypical ± 5%
(Typical Conditions: TJ = 25°C, VVDDI = 1.8V, VVDDO = 3.3V)
18.1 Input Timing
Table 23 TSE Input Timing (Figure 27)
Symbol
Description
Min
Max
Units
FSYSCLK
SYSCLK Frequency (nominally 77.76
MHz )
77.76-100ppm
77.76+100ppm
MHz
tHISYSCLK
SYSCLK High Pulse Width
5
ns
tLOSYSCLK
SYSCLK Low Pulse Width
5
ns
tSCMP
CMP Set-Up Time
3
ns
tHCMP
CMP Hold Time
0
ns
tSRJ0
RJ0FP Set-Up Time
3
ns
tHRJ0
RJ0FP Hold Time
0
ns
Figure 27 TSE Input Timing
SYSCLK
RJ0FP
tS
RJ0
tH
RJ0
CMP
tS
CMP
tH
CMP
tLO
SYSCLK
tLO
SYSCLK
Notes on Input Timing:
When a set-up time is specified between an input and a clock, the set-up time is the time in
nanoseconds from the 1.4 Volt point of the input to the 1.4 Volt point of the clock.
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