844031-01中文资料FemtoClock Crystal-to-LVDS Clock Generator数据手册Renesas规格书

描述 Description

The 844031-01 is an Ethernet clock generator and a member of the HiPerClocks™ family of high performance devices. The 844031-01 uses an 18pF parallel resonant crystal over the range of 19.6MHz - 27.2MHz. For Ethernet applications, a 25MHz crystal is used to generate 312.5MHz. The 844031-01 has excellent <1ps phase jitter performance, over the 1.875MHz - 20MHz integration range. The 844031- 01 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.

特性 Features

One differential LVDS output
Crystal oscillator interface, 18pF parallel resonant crystal (19.6MHz - 27.2MHz)
Output frequency range: 245MHz - 340MHz
VCO range: 490MHz - 680MHz
RMS phase jitter at 312.5MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.53ps (typical)
3.3V or 2.5V operating supply
0 °C to 70 °C ambient operating temperature
Available in both standard (RoHS 5) and lead-free (RoHS 6) packages