5V41234 Datasheet, PDF (1/13 Pages) Integrated Device Technology – 1 OUTPUT PCIE GEN1/2/3 SYNTHESIZER

1 OUTPUT PCIE GEN1/2/3 SYNTHESIZER
DATASHEET
5V41234
Typical Applications
One output synthesizer for PCIe Gen1/2/3
Description
The 5V41234 is a PCIe Gen2/3 compliant spread spectrum
capable clock generator. The device has 1 differential
HCSL output and can be used in communication or
embedded systems to substantially reduce
electro-magnetic interference (EMI). Spread spectrum can
be enabled via a select pin.
Output Features
• 1 - 0.7V current mode differential HCSL output pairs
Features
• 3 x 3 mm 16-QFN package; very small board footprint
• Spread-spectrum capable; reduces EMI
• Outputs can be terminated to LVDS; can drive a wider
variety of devices
• Spread enable via pin selection; no software required to
configure device
• Industrial temperature range available; supports
demanding embedded applications
Key Specifications
• Cycle-to-cycle jitter < 100 ps
• PCIe Gen2 phase jitter < 3.0ps RMS
• PCIe Gen3 phase jitter < 1.0ps RMS
Block Diagram
VDD
SS1
X1
25 MHz
crystal /clock
X2
Control
Logic
Clock
Buffer/
Crystal
Oscillator
Phase Lock
Loop
Crystal Tuning Capacitors
GND
CLK
CLK
R_R (IREF)
IDT® 1 OUTPUT PCIE GEN1/2/3 SYNTHESIZER
1
5V41234
MAY 5, 2017