Overview
Description
The 84427 is a Crystal-to-LVDS Frequency Synthesizer/Fanout Buffer. The output frequency can be programmed using the frequency select pins. The low phase noise characteristics of the 84427 make it an ideal clock source for 10 Gigabit Ethernet, 10 Gigabit Fibre Channel, OC3 and OC12 applications.
Features
- Six LVDS outputs
- Crystal oscillator interface
- Output frequency range: 77.76MHz to 625MHz
- Crystal input frequency: 19.44MHz, 25MHz or 25.5MHz
- RMS phase jitter at 155.52MHz, using a 19.44MHz crystal (12kHz to 20MHz): 3.4ps (typical)
Phase noise:
Offset Noise Power
100Hz ............... -95 dBc/Hz
1kHz ............... -110 dBc/Hz
10kHz ............... -120 dBc/Hz
100kHz ............... -121 dBc/Hz - 3.3V supply voltage
- 0°C to 70°C ambient operating temperature
- Available in lead-free RoHS-compliant package
Comparison
Applications
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Product Options
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