參數(shù)資料
型號: VSC880TY
英文描述: Interface IC
中文描述: 接口IC
文件頁數(shù): 20/28頁
文件大?。?/td> 289K
代理商: VSC880TY
VITESSE
Data Sheet
VSC880
High Performance 16x16
Serial Crosspoint Switch
Page 20
G52191-0, Rev 4.2
01/05/01
VITESSE
SEMICONDUCTOR CORPORATION
741 Calle Plano
Camarillo, CA 93012
Tel: (800) VITESSE
FAX: (805) 987-5896
Email: prodinfo@vitesse.com
Internet: www.vitesse.com
AC Characteristics
Table 1: LVDS and TTL Outputs
Figure 9: Parallel Data Input Timing Diagram
Table 2: Transmit Data Input Timing Table
Note: Duty cycle for T
REFCLK
is 50% +/- 10% worst case
Figure 10: Parallel Data Output Timing Diagram
Parameters
Description
Min
Typ
Max
Units
Conditions
T
R,TTL
T
F,TTL
T
R,LVDS
T
F,LVDS
TTL Output Rise Time
TTL Output Fall Time
LVDS Output Rise Time
LVDS Output Fall Time
2.5
ns
10-90% @ 50pF
10-90% @ 50pF
20-80%
20-80%
2.5
ns
100
ps
100
ps
Parameter
Description
Min
Typ
Max
Units
T
REFCLK
F
REFCLK
J
REFCLK
T
INSU
T
INH
T
SKEW
Reference (word) clock period
Reference clock frequency stability
Reference clock input jitter
Parallel data setup time with respect to REFCLK
Parallel data hold time with respect to REFCLK
REFCLK to REFCLK skew using parallel switch chips
16
ns
100
7
ppm
ps RMS
ns
ns
ns
1
2
1
T
REFCLK
T
INSU
T
INH
REFCLK
DATA[15:0], FI[3:0], WEN,
CEN, CCLK,
T
INT
INT
T
INT
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