參數(shù)資料
型號(hào): 1893YI-10
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 網(wǎng)絡(luò)接口
英文描述: DATACOM, INTERFACE CIRCUIT, PQFP64
封裝: 10 X 10 MM, TQFP-64
文件頁數(shù): 32/152頁
文件大小: 943K
代理商: 1893YI-10
Chapter 10
DC and AC Operating Conditions
ICS1893 Rev C 6/6/00
June, 2000
127
ICS1893 - Release
Copyright 2000, Integrated Circuit Systems, Inc.
All rights reserved.
10.5
Timing Diagrams
10.5.1
Timing for Clock Reference In (REF_IN) Pin
Table 10-8 lists the significant time periods for signals on the clock reference in (REF_IN) pin. Figure 10-2
shows the timing diagram for the time periods.
Note:
The REF_IN switching point is 50% of VDD.
Figure 10-2.
REF_IN Timing Diagram
Table 10-8.
REF_IN Timing
Time
Period
Parameter
Conditions
Min.
Typ.
Max.
Units
t1
REF_IN Duty Cycle
45
50
55
%
t2
REF_IN Period
40
ns
REF_IN
t1
t2
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