844021-01中文资料FemtoClock® Crystal-to-LVDS Clock Generator数据手册Renesas规格书

描述 Description

The 844021-01 is an Ethernet Clock Generator and a member of the family of high performance devices from IDT. The 844021-01 uses an 18pF parallel resonant crystal over the range of 24.5MHz – 34MHz. For Ethernet applications, a 25MHz crystal is used. The 844021-01 has excellent <1ps phase jitter performance, over the 1.875MHz – 20MHz integration range. The 844021-01 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 (24.5MHz – 34MHz)
·Output frequency range: 122.5MHz – 170MHz
·VCO range: 490MHz – 680MHz
·RMS phase jitter @ 125MHz, using a 25MHz crystal (1.875MHz – 20MHz): 0.32ps (typical) @ 3.3V
·3.3V or 2.5V operating supply
·0°C to 70°C ambient operating temperature
·Available in lead-free (RoHS 6) package