CDCM9102 Low Noise Two Channel 100MHz PCIe Clock Generator |

CDCM9102 (ACTIVE) Low Noise Two Channel 100MHz PCIe Clock Generator



The CDCM9102 is a low-jitter clock generator designed to provide reference clocks for communications standards such as PCI Express™. The device supports up to PCIE gen3 and is easy to configure and use. The CDCM9102 provides two 100-MHz differential clock ports. The output types supported for these ports include LVPECL, LVDS, or a pair of LVCMOS buffers. HCSL signaling is supported using an AC-coupled network. The user configures the output buffer type desired by strapping device pins. Additionally, a single-ended 25-MHz clock output port is provided. Uses for this port include general-purpose clocking, clocking Ethernet PHYs, or providing a reference clock for additional clock generators. All clocks generated are derived from a single external 25-MHz crystal.


  • Integrated Low-Noise Clock Generator Including
    PLL, VCO, and Loop Filter
  • Two Low-Noise 100-MHz Clocks (LVPECL,
    LVDS, or pair of LVCMOS)
    • Support for HCSL Signaling Levels
    • Typical Period Jitter: 21 ps pk-pk
    • Typical Random Jitter: 510 fs RMS
    • Output Type Set by Pins
  • Bonus Single-Ended 25-MHz Output
  • Integrated Crystal Oscillator Input Accepts
    25-MHz Crystal
  • Output Enable Pin Shuts Off Device and Outputs
  • 5-mm × 5-mm 32-Pin VQFN Package
  • ESD Protection Exceeds 2000 V HBM, 500 V
  • Industrial Temperature Range (–40°C to 85°C)
  • 3.3-V Power Supply

Design with CDCM9102

Recommend Input Frequency Output Frequencies
Input Frequency  MHz
 MHz  MHz


Compare all products in Low jitter <1psec RMS Email Download to Excel
Part number Order Input type VCC core (V) VCC out (V) Programmability Number of outputs Output frequency (Max) (MHz) Output type Operating temperature range (C) Features
CDCM9102 Order now LVPECL     3.3     3.3     Pin configuration     2     1296     LVDS     -40 to 85     3.3-V VCC/VDD    
CDCI6214 Order now Crystal     1.8
Pin configuration
Serial interface    
4     350     LVCMOS
-40 to 85     I2C
Pin programming