CDCM9102 Texas instruments

CDCM9102

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CDCM9102

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Описание

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
  (AC-Coupled)
- 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
CDM
Industrial Temperature Range (–40°C to 85°C)
3.3-V Power Supply

Function	Clock generator
Number of outputs	2
Output frequency (max) (MHz)	1296
Core supply voltage (V)	3.3
Output supply voltage (V)	3.3
Input type	LVPECL
Output type	LVDS
Operating temperature range (°C)	-40 to 85
Features	3.3-V VCC/VDD, Pin programmable
Rating	Catalog