Overview
Description
The 843023 is a Gigabit Ethernet clock generator that uses a 25MHz crystal to synthesize 250MHz. The 843023 has excellent phase jitter performance, over the 1.875MHz – 20MHz integration range. The 843023 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.
Features
- One differential 3.3V LVPECL output
- Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal
- Output frequencies: 245MHz – 320MHz
- VCO range: 490MHz - 640MHz
- RMS phase jitter @ 250MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.39ps (typical)
Offset Noise Power
100Hz .................. -86.3 dBc/Hz
1kHz .................... -114.6 dBc/Hz
10kHz .................. -125.6 dBc/Hz
100kHz ................ -126 dBc/Hz - 3.3V operating supply
- 0°C to 70°C ambient operating temperature
- Available in lead-free (RoHS 6) package
Comparison
Applications
Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
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