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ZL30281
  • ZL30281

ZL30281

In Production

The ZL30281 is a high-performance PCIe Gen 1-7 clock generator. From a 25MHz crystal or CMOS input these devices generate 100 MHZ in four pre-programmed output configurations immediately on power-up. Thedevice has output jitter of 33fs typ RMS for PCIe 7.0 common Refclk mode.

Microchip Technology ZL30281 Product Info

16 April 2026 0

Parameters

# of Outputs

3

Output Frequency Max. (MHz)

100

Output Frequency Min. (MHz)

25

OutputLogic

CML, CMOS

PCIe Gen

1/2/3/4/5/6/7

Product Type

Low-Jitter Clock Generators

PullRange

0

Voltage

3.3

Features

    25MHz crystal or CMOS input
    Generates PCIe 1, 2, 3, 4, 5, 6, 7 compliant clocks
    Four default configurations selected by hardware pins at reset:
  • Config0: 100MHz on output OC1 (CML format)
  • Config1: 100MHz on OC1, OC2 (CML)
  • Config2: 100MHz on OC1 (CML), OC2 (HSTL)
  • Config3: 100MHz on OC1, OC2 (CML) and 25MHz LVCMOS on OC3
    Per-output controls (using SPI or I2C interface)
    Per-output enable/disable and glitch-less start/stop (stop high or low)
    Precise output alignment circuitry and per-output phase adjustment
    SPI or I2C processor Interface
    Tiny 5x5mm QFN package

Description

The ZL30281 is a high-performance PCIe Gen 1-7 clock generator. From a 25MHz crystal or CMOS input these devices generate 100 MHZ in four pre-programmed output configurations immediately on power-up. The

device has output jitter of 33fs typ RMS for PCIe 7.0 common Refclk mode.

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