845264 Description
The 845264 is a 3.3V, 2.5V CML clock generator designed for Ethernet applications. The device synthesizes four clock frequencies on two separately selectable output banks. Each bank has either a 62.5MHz, 125MHz, 156.25MHz or 312.5MHz clock signal with excellent phase jitter performance.
845264 Key Features
- Clock generation of: 62.5MHz, 125MHz, 156.25MHz and
- Two banks of two differential CML clock outputs
- Crystal interface designed for 25MHz, 12pF parallel resonant
- RMS phase jitter @ 125MHz, using a 25MHz crystal
- 20MHz): 0.486ps (typical)
- 97 dBc/Hz
- 118 dBc/Hz
- 125 dBc/Hz
- 123 dBc/Hz
- LVCMOS interface levels for the control inputs