SK1999
1:9 Signal Distribution
HIGH-PER.ORMANCE PRODUCTS
Description
PRELIMINARY
.eatures
The SK1999 is an extremely fast, stable, and accurate
low skew 1:9 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 SK1999 has open collector (CML) outputs, targeted
for:
鈥?Ultra high speed applications
鈥?Adjustable common mode levels at the
destination
.
鈥?/div>
鈥?/div>
鈥?/div>
1:9 Clock/Data Driver
3 GHz Fmax
3.3V / 5.2V Compatible
Output Options
Open Collector
OUT
OUT*
.unctional Block Diagram
12 mA
OUT0
OUT0*
OUT1
OUT1*
OUT2
OUT2*
OUT3
OUT3*
IN
IN*
D Q
D* Q*
VEE
0
1
OUT4
OUT4*
OUT5
OUT5*
OUT6
OUT6*
OUT7
OUT7*
OUT8
OUT8*
CLK
CLK*
SEL*
SEL
Pin Description
VCC
OUT0
OUT0*
OUT1*
OUT1
OUT2
OUT2*
VEE
Package Information
32 pin, 5 mm x 5 mm
TQ.P Package
VEE
SEL
SEL*
CLK
CLK*
IN
IN*
VCC
VCC
OUT3*
OUT3
OUT4
OUT4*
OUT5*
OUT5
VEE
VEE
OUT8*
OUT8
OUT7
OUT7*
OUT6*
OUT6
VCC
Revision 1/January 23, 2001
28
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