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SY89425 Datasheet - Micrel Semiconductor

SY89425_MicrelSemiconductor.pdf

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Datasheet Details

Part number:

SY89425

Manufacturer:

Micrel Semiconductor

File Size:

93.86 KB

Description:

Dual sonet oc-12 clock synthesizer.

SY89425, DUAL SONET OC-12 CLOCK SYNTHESIZER

Micrel-Synergy's SY89425 Dual Phase Locked Loop (PLL) consists of two totally separate, SONET compliant 622.08MHz clock generators on one chip.

The user may select to power both PLLs or PLL A only.

Each PLL produces a low-jitter OC-12/STS-12 clock rate from an input reference clock of 38.88, 51.84,

SY89425 Features

* s Two independently-powered 622.08MHz clock sources one chip s Differential PECL outputs s TTL/CMOS compatible inputs s SONET compliant jitter performance (≤0.01UI) s Choice of three reference frequencies for each PLL s Only 395mW per PLL (typ) s Complies with Bellcore, CCITT and ANSI standards s Si

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