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Micrel, Inc.
NOT RECOMMENDED FOR NEW DESIGNS
PROGRAMMABLE DELAY CHIP
Precison Edge®
Precison SESYdY1g1000eEE®119955 SY10E195
SY100E195
FEATURES
s Up to 2ns delay range s Extended 100E VEE range of –4.2V to –5.5V s ≈20ps/digital step resolution s >1GHz bandwidth s On-chip cascade circuitry s 75KkΩ input pulldown resistor s Fully compatible with Motorola MC10E/100E195 s Available in 28-pin PLCC package
DESCRIPTION
The SY10/100E195 are programmable delay chips (PDCs) designed primarily for clock de-skewing and timing adjustment. They provide variable delay of a differential ECL input transition.
The delay section consists of a chain of gates organized as shown in the logic diagram. The first two delay elements feature gates that have been modified to have delays 1.25 and 1.