ICS843021 Overview
The ICS843021 is a Gigabit Ethernet Clock Generator and a member of the HiPerClocksTM HiPerClockS™ family of high performance devices from ICS. The ICS843021 uses a 25MHz crystal to synthesize 125MHz. The ICS843021 has excellent phase jitter performance, over the 1.875MHz 20MHz integration range.
ICS843021 Key Features
- 1 differential 3.3V LVPECL output
- Crystal oscillator interface designed for 22.4MHz
- 28MHz, 18pF parallel resonant crystal
- Output frequency range: 112MHz
- 140MHz
- VCO range: 560MHz to 700MHz
- Output duty cycle range: 49%
- RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz
- 20MHz): 0.37ps (typical)
- RMS phase noise at 125MHz (typical) Offset Noise Power 100Hz
