HIGH-PER.ORMANCE PRODUCTS
Description
.eatures
SK1502
1:5 Signal Distribution
PRELIMINARY
The SK1502 is an extremely fast, stable, and accurate •
low skew 1:5 clock / signal distributor featuring a •
synchronous enable, which allows the outputs to be •
turned off and on without the risk of an unpredictable
output pulse. The D - flip-flop is triggered on the
falling edge of the clock.
The SK1502 uses 50Ω outputs with source /sink
capability, and is optimized for applications that require:
• Point to point, double terminated, timing
critical lines
.unctional Block Diagram
1:5 Clock/Data Driver
3 GHz Fmax
3.3V / 5.2V Compatible
Output Options
50Ω Source / Sink
VCC
4 mA
50Ω
50Ω
4 mA
OUT
OUT *
VEE VEE
Output Swing
IN
DQ
IN*
D* Q*
0
1
CLK
CLK*
SEL*
SEL
OUT0
OUT0*
OUT1
OUT1*
OUT2
OUT2*
OUT3
OUT3*
OUT4
OUT4*
350 mV
1.3V
At destination
(double termination)
VCC
3.3V
or
5.2V
VEE
Pin Description
Package Information
32 pin, 5 mm x 5 mm
TQFP Package
VEE
SEL
SEL*
CLK
CLK*
IN
IN*
VCC
VCC
N/C
N/C
OUT2
OUT2*
N/C
N/C
VEE
Revision 1/ January 23, 2001
10
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