ICS840022 Description
The ICS840022 is a Gigabit Ethernet Clock Generator and a member of the HiPerClocksTM HiPerClockS™ family of high performance devices from ICS. The ICS840022 uses a 25MHz crystal to synthesize 125MHz or 62.5MHz. The ICS840022 has excellent phase jitter performance, over the 1.875MHz 20MHz integration range.
ICS840022 Key Features
- 1 LVCMOS/LVTTL output, 7Ω output impedence
- Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal
- Output frequencies: 125MHz or 62.5MHz (selectable)
- RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz
- 20MHz): 0.55ps (typical)
- RMS phase noise at 125MHz: Offset Noise Power 100Hz
- 106.3 dBc/Hz 1KHz
- 126.3 dBc/Hz 10KHz
- 131.7 dBc/Hz 100KHz
- 130.8 dBc/Hz