ics1893ck-40 Integrated Device Technology, ics1893ck-40 Datasheet - Page 99

• Manufacturer Part Number: ics1893ck-40
• Description: 3.3-v 10base-t/100base-tx Integrated Phyceiver
• Manufacturer: Integrated Device Technology

9.5 Timing Diagrams
9.5.1 Timing for Clock Reference In (REF_IN) Pin
ICS1893CK-40, Rev. C, 06/02/09
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
t1
t2
The REF_IN switching point is 50% of VDD.
ICS1893CK-40 Data Sheet Rev. C - Release
lists the significant time periods for signals on the clock reference in (REF_IN) pin.
REF_IN Duty Cycle
REF_IN Period
Parameter
Copyright © 2009, Integrated Device Technology, Inc.
t1
All rights reserved.
99
t2
Conditions
–
–
Chapter 9 DC and AC Operating Conditions
Min.
45
–
Typ.
50
40
Max.
Figure 9-2
55
–
June 2009
Units
ns
%