ICS508

PECL to CMOS Converter

MDS 508 C

4

Revision 012400

Printed 11/13/00

Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA•95126•(408) 295-9800tel • www.icst.com

PRELIMINARY INFORMATION

Parameter

Conditions

Minimum

Typical

Maximum

Units

AC CHARACTERISTICS (VDDP = VD

DDC = 3.3V unless oth

herwise noteed)

Input Frequency

0

250

MHz

Output Clock Rise Time, 0.8 to 2 V

VDDC = 5 V

0.4

ns

VDDC = 3.3 V

0.6

ns

VDDC = 2.5 V

1

ns

Output Clock Fall Time, 2 V to 0.8 V

VDDC = 5 V

0.4

ns

VDDC = 3.3 V

0.6

ns

VDDC = 2.5 V

1

ns

Output Enable Time, OE high to ouput on

7

20

ns

Output Disable Time, OE low to tri-state

7

20

ns

Propagation Delay

VDDP=5 V, VDDC=5 V

4

6

ns

VDDP=5 V, VDDC=3.3 V

4.5

7

ns

VDDP=5 V, VDDC=2.5 V

5.5

9

ns

VDDP=3.3 V, VDDC=3.3 V

4.5

7

ns

VDDP=3.3 V, VDDC=2.5 V

5.5

9

ns

Output Clock Duty Cycle, 0-100 MHz

Any VDD combination

45

55

%

Output Clock Duty Cycle, 100-166 MHz

VDDP=5 V, VDDC=5 V

45

55

%

VDDP=5 V, VDDC=3.3 V

45

55

%

VDDP=5 V, VDDC=2.5 V

40

60

%

VDDP=3.3 V, VDDC=3.3 V

40

60

%

VDDP=3.3 V, VDDC=2.5 V

45

55

%

Output Clock Duty Cycle, 166-250 MHz

VDDP=5 V, VDDC=5 V

40

60

%

VDDP=5 V, VDDC=3.3 V

40

60

%

VDDP=5 V, VDDC=2.5 V

35

65

%

VDDP=3.3 V, VDDC=3.3 V

35

65

%

VDDP=3.3 V, VDDC=2.5 V

40

60

%

Electrical Specifications