ICS1893CK ICST [Integrated Circuit Systems], ICS1893CK Datasheet - Page 103

• Manufacturer Part Number: ICS1893CK
• Description: 3.3-V 10Base-T/100Base-TX Integrated PHYceive
• Manufacturer: ICST [Integrated Circuit Systems]

9.5 Timing Diagrams
9.5.1 Timing for Clock Reference In (REF_IN) Pin
ICS1893CF, Rev. F, 03/01/07
Table 9-8
shows the timing diagram for the time periods.
Note:
Table 9-8. REF_IN Timing
Figure 9-2. REF_IN Timing Diagram
REF_IN
Period
Time
ICS1893CF Data Sheet Rev. F - Release
t1
t2
The REF_IN switching point is 50% of VDD.
lists the significant time periods for signals on the clock reference in (REF_IN) pin.
REF_IN Duty Cycle
REF_IN Period
Parameter
Copyright © 2007, Integrated Device Technology, Inc.
t1
All rights reserved.
103
t2
Conditions
–
–
Chapter 9 DC and AC Operating Conditions
Min.
45
–
Typ.
50
40
Max.
Figure 9-2
55
–
Mar. 2007
Units
ns
%