E118AHF Datasheet, PDF (4/11 Pages) Semtech Corporation – Low Skew Clock Spreader

EDGE HIGH-PERFORMANCE PRODUCTS
Circuit Description
Chip Overview
The Edge118 is a clock distribution chip designed to
take one input signal (IN / IN*) and fan it out 18 times
to identical outputs (OUT / OUT*). The chip is designed
to minimize channel to channel skew and any timing jitter.
The part’s wide fanout is extremely useful in applications
where many distinct copies of a signal are required on
one PC Board, and these signals must all be aligned.
This signal can be distributed without creating a
distribution tree using multiple devices.
Inputs
The input signal is differential, requiring 250 mV swings
for full performance operation. The inputs are ECL
compatible, but may also be operated over a common
mode voltage range between VEE + 1.3V and VCC – .5V.
Outputs
IN
The outputs are ECL compatible differential signals with ^IN*
800 mV voltage swings centered around 1.3V below GND.
Operating Frequency
The Edge118 is designed to maintain full performance
up to at least 1000 MHz and pass 500 ps pulses.
 2000 Semtech Corp.
4
Edge118
OUT 0
OUT 0*
OUT 1
OUT 1*
OUT 2
OUT 2*
OUT 3
OUT 3*
OUT 4
OUT 4*
OUT 5
OUT 5*
OUT 6
OUT 6*
OUT 7
OUT 7*
OUT 8
OUT 8*
OUT 9
OUT 9*
OUT 10
OUT 10*
OUT 11
OUT 11*
OUT 12
OUT 12*
OUT 13
OUT 13*
OUT 14
OUT 14*
OUT 15
OUT 15*
OUT 16
OUT 16*
OUT 17
OUT 17*
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