Integrated
Circuit
Systems, Inc.
ICS83940DI
LOW SKEW, 1-TO-18
LVPECL-TO-LVCMOS / LVTTL FANOUT BUFFER
PARAMETER MEASUREMENT INFORMATION
1.65V±5%
VDD,
VDDO
LVCMOS
GND
-1.65V±5%
SCOPE
Qx
3.3V OUTPUT LOAD AC TEST CIRCUIT
2.05V±5% 1.25V±5%
VDD
VDDO
LVCMOS
GND
SCOPE
Qx
-1.25V±5%
3.3V/2.5V OUTPUT LOAD AC TEST CIRCUIT
1.25V±5%
VDD,
VDDO
LVCMOS
GND
SCOPE
Qx
-1.25V±5%
2.5V OUTPUT LOAD AC TEST CIRCUIT
VDD
nPCLK
V
PP
PCLK
GND
Cross Points
DIFFERENTIAL INPUT LEVEL
V
CMR
PART 1
Qx
V
DDO
2
PART 2
Qy
V
DDO
2
t sk(pp)
V
DDO
Qx
2
V
DDO
Qy
2
t sk(o)
PART-TO-PART SKEW
83940DYI
OUTPUT SKEW
www.icst.com/products/hiperclocks.html
7
REV. A DECEMBER 12, 2002