IDT8535-01
LOW SKEW, 1-TO-4 LVCMOS-TO-3.3V LVPECL
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
LOW SKEW, 1-TO-4
LVCMOS-TO-3.3V LVPECL
FANOUT BUFFER
FEATURES:
鈥?Four differential 3.3V LVPECL outputs
鈥?Selectable CLK0 or CLK1 inputs for redundant and multiple
frequency fanout applications
鈥?Maximum output frequency: 266MHz
鈥?CLK0 or CLK1 can accept LVCMOS or LVTTL input levels
鈥?Translates LVCMOS and LVTTL levels to 3.3V LVPECL levels
鈥?Output skew: 30ps (max.)
鈥?Part-to-part skew: as low as 150ps
鈥?Propagation delay: 1.9ns (max.)
鈥?3.3V operating supply
鈥?Available in TSSOP package
IDT8535-01
DESCRIPTION:
The IDT8535-01 is a low skew, high performance 1-to-4 LVCMOS-to-3.3V
LVPECL fanout buffer. It has two single-ended clock inputs. The single-ended
clock input accepts LVCMOS or LVTTL input levels and translates them to 3.3V
LVPECL levels. The clock enable is internally synchronized to eliminate runt
pulses on the outputs during asynchronous assertion/deassertion of the clock
enable pin.
Guaranteed output and part-to-part skew characteristics make the IDT8535-
01 ideal for those applications demanding well-defined performance and
repeatability.
FUNCTIONAL BLOCK DIAGRAM
CLK_EN
D
Q
LE
CLK0
0
Q0
xQ0
CLK1
1
Q1
xQ1
Q2
CLK_SEL
xQ2
Q3
xQ3
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
1
c
2004
Integrated Device Technology, Inc.
APRIL 2004
DSC 6196/6