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ZL30254
  • ZL30254

ZL30254

In Production

The ZL30254 is a high-performance, cost efficient, precision clock multiplier optimized for Ethernet applications that demand low-jitter clock generation. The ZL30254 accepts two input reference clocks both 8kHz or 25MHz and performs clock multiplication with jitter attenuation producing 125MHz or 156.25MHz locked output clocks. 

Microchip Technology ZL30254 Product Info

16 April 2026 0

Parameters

Type

Single Channel

Inputs

1 XTAL, 2 SE

CMOS Outputs

0

Low-Jitter Synthesizers

1

Typical Jitter (12kHz-20MHz) fs RMS

<1000

Output Freq Range

125 MHz or 156.25 MHz

Features

    Two Input Clocks
  • Two CMOS inputs, both 8kHz or 25MHz
  • Inputs continually monitored for frequency accuracy
  • Automatic revertive reference switching
    Low-Bandwidth DPLL
  • 25Hz bandwidth for jitter attenuation
  • +/- 20ppm tracking range
  • Digital hold on loss of all inputs
    Clock Multiplier APLL and Output Clocks
  • Easy to configure, encapsulated design requires no external VCXO or loop filter components
  • Two CML outputs, both 125MHz or 156.25MHz
  • Outputs easily interface with CML, LVDS or LVPECL components
  • Output jitter <1 ps RMS (12kHz - 20MHz)
    General Features
  • Operates from low-cost 49.125MHz fundamental-mode crystal
  • Status output pins indicate selected input clock, holdover, and locked/unlocked states
  • Input clock selection control pin
  • Tiny 5x5mm QFN package

Description

The ZL30254 is a high-performance, cost efficient, precision clock multiplier optimized for Ethernet applications that demand low-jitter clock generation. The ZL30254 accepts two input reference clocks both 8kHz or 25MHz and performs clock multiplication with jitter attenuation producing 125MHz or 156.25MHz locked output clocks. 

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