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Description

The PI6CG184Q is an 4-output very low power PCIe Gen4 clock generator. It uses 25MHz crystal or CMOS reference as an input to generate the 100MHz low power differential HCSL outputs with on-chip terminations.
The on-chip termination can save 16 external resistors and make layout easier. An additional buffered reference output is provided to serve as a low noise reference for other circuitry.


It uses Diodes proprietary PLL design to achieve very low jitter that meets PCIe Gen1/Gen2/Gen3/Gen4 requirements. It also provides various options such as different slew rate and amplitude through strapping pins or SMBUS so that users can configure the device easily to get the optimized performance for their individual boards. The device also supports selectable spreadspectrum options to reduce EMI for Automotive applications.

Features

  • 1.8V supply voltage
  • Crystal/CMOS input: 25 MHz
  • 4 differential low power HCSL outputs with on-chip termination
  • Individual output enable
  • Reference CMOS output
  • Programmable Slew rate and output amplitute for each output
  • Differential outputs blocked until PLL is locked
  • Selectable 0%, -0.25% or -0.5% spread on differential outputs
  • Strapping pins or SMBus for configuration;
  • 3.3V tolerant SMBus interface support
  • Very low jitter outputs
    • Differential cycle-to-cycle jitter <50ps
    • Differential output-to-output skew <50ps
    • PCIe Gen1/Gen2/Gen3/ Gen4 compliant
    • CMOS REFOUT phase jitter is < 1.5ps RMS

Product Specifications

Product Parameters

Function Generator
Input Type(s) Crystal, LVCMOS
Jitter 0.37
Number of Outputs 4
Output Frequency 100
Output Type(s) LP-HCSL
Skew 50
Supply Voltage 1.8
Temp Ind
Temperature -40 to 105

Technical Documents

Recommended Soldering Techniques
Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
PI6CG184Q2ZHQEX Digi-Key Electronics 2069 9/16/2019 Buy Now United States

FAQs

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