ICS508 Datasheet, PDF (4/5 Pages) Integrated Circuit Systems – PECL to CMOS Converter

PRELIMINARY INFORMATION
ICS508
PECL to CMOS Converter
Electrical Specifications
Parameter
Conditions
Minimum Typical
AC CHARACTERISTICS (VDDP = VDDC = 3.3V unless otherwise noted)
Input Frequency
0
Output Clock Rise Time, 0.8 to 2 V
VDDC = 5 V
0.4
VDDC = 3.3 V
0.6
VDDC = 2.5 V
1
Output Clock Fall Time, 2 V to 0.8 V
VDDC = 5 V
0.4
VDDC = 3.3 V
0.6
VDDC = 2.5 V
1
Output Enable Time, OE high to ouput on
7
Output Disable Time, OE low to tri-state
7
Propagation Delay
VDDP=5 V, VDDC=5 V
4
VDDP=5 V, VDDC=3.3 V
4.5
VDDP=5 V, VDDC=2.5 V
5.5
VDDP=3.3 V, VDDC=3.3 V
4.5
VDDP=3.3 V, VDDC=2.5 V
5.5
Output Clock Duty Cycle, 0-100 MHz
Any VDD combination
45
Output Clock Duty Cycle, 100-166 MHz
VDDP=5 V, VDDC=5 V
45
VDDP=5 V, VDDC=3.3 V
45
VDDP=5 V, VDDC=2.5 V
40
VDDP=3.3 V, VDDC=3.3 V
40
VDDP=3.3 V, VDDC=2.5 V
45
Output Clock Duty Cycle, 166-250 MHz
VDDP=5 V, VDDC=5 V
40
VDDP=5 V, VDDC=3.3 V
40
VDDP=5 V, VDDC=2.5 V
35
VDDP=3.3 V, VDDC=3.3 V
35
VDDP=3.3 V, VDDC=2.5 V
40
Maximum Units
250
MHz
ns
ns
ns
ns
ns
ns
20
ns
20
ns
6
ns
7
ns
9
ns
7
ns
9
ns
55
%
55
%
55
%
60
%
60
%
55
%
60
%
60
%
65
%
65
%
60
%
MDS 508 C
4
Revision 012400
Printed 11/13/00
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126•[phone]tel • www.icst.com