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PI6C557-03B

PCIe 3.0 Clock Generator with 2 HCSL Outputs

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Description

The PI6C557-03B is a spread spectrum clock generator compli- ant to PCI Express® 3.0 and Ethernet requirements. The device is used for PC or embedded systems to substantially reduce Electro- magnetic Interference (EMI).

The PI6C557-03B provides two differential (HCSL) or LVDS spread spectrum outputs. The PI6C557-03B is configured to se- lect spread and clock selection. Using Diodes' patented Phase- Locked Loop (PLL) techniques, the device takes a 25MHz crystal input and produces two pairs of differential outputs (HCSL) at 25MHz, 100MHz, 125MHz and 200MHz clock frequencies. It also provides spread selection of -0.5%, -0.75%, and no spread.

Feature(s)

  • PCIe® 3.0 compliant

       - PCIe 3.0 Phase jitter - 0.45ps RMS (High Freq. Typ.)

  • LVDS compatible outputs
  • Supply voltage of 3.3V ±10%
  • 25MHz crystal or clock input frequency
  • HCSL outputs, 0.8V Current mode differential pair
  • Jitter 35ps cycle-to-cycle (typ)
  • Spread of -0.5%, -0.75%, and no spread
  • Industrial temperature range
  • Spread Bypass option available
  • Spread and frequency selection via external pins
  • Packaging: (Pb-free and Green)

      - 16-pin TSSOP (L16) à 16-pin QSOP (Q16)

Specifications & Technical Documents

Product Parameters

Compliance (Only Automotive Supports PPAP)

Standard

Function

Generator

Input Type(s)

Crystal, CMOS

Additive Jitter (ps)

<1

Number of Outputs

2

Maximum Output Frequency (MHz)

100

Output Type(s)

HCSL

Skew (PS)

50

Supply Voltage (V)

3.3

Ambient or Junction Temperature (°C)

-40 to 85

Related Content

Packages

Applications

Protocols

Technical Documents

Supplemental

SPICE/IBIS Model Documents

Recommended Soldering Techniques

TN1.pdf

Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

Request Documents

RoHS CofC

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2770 2025-10-30 2025-10-30 Add Fab Site Code, Country of Diffusion (COD) and Assembly Site Origin (ASO) on Product and Shipping Labels for all Diodes Products