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SY89425 - DUAL SONET OC-12 CLOCK SYNTHESIZER

General Description

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.

Key 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 Single +5 volt power supply s Fully compatible with industry standard 10KH I/O levels s Available in 28-pin PLCC package ClockWorks™ SY89425.

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Datasheet Details

Part number SY89425
Manufacturer Micrel Semiconductor
File Size 93.86 KB
Description DUAL SONET OC-12 CLOCK SYNTHESIZER
Datasheet download datasheet SY89425 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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DUAL SONET OC-12 CLOCK SYNTHESIZER 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 Single +5 volt power supply s Fully compatible with industry standard 10KH I/O levels s Available in 28-pin PLCC package ClockWorks™ SY89425 DESCRIPTION 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.