843023I中文资料FemtoClock® Crystal-to-3.3V,2.5V LVPECL Clock Generator数据手册Renesas规格书

描述 Description

The 843023I is a Gigabit Ethernet Clock Generator and a member of the family of high performance devices from IDT. The 843023I uses a 25MHz crystal to synthesize 250MHz. The 843023I has excellent phase jitter performance, over the 1.875MHz – 20MHz integration range. The 843023I is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.

特性 Features

·One differential 3.3V or 2.5V LVPECL output
·Crystal oscillator interface designed for 25MHz, 18pF parallel resonant crystal
·Output frequency range: 240MHz - 320MHz
·VCO range: 480MHz - 640MHz
·RMS phase jitter @ 250MHz, using a 25MHz crystal (1.875MHz - 20MHz): 0.39ps (typical)Phase noise:Offset                    Noise Power100Hz ................. -86.3 dBc/Hz1kHz ................... -114.6 dBc/Hz10kHz ................. -125.6 dBc/Hz100kHz ............... -126.0 dBc/Hz
·Full 3.3V and 2.5V operating supply
·-40°C to 85°C ambient operating temperature
·Available in lead-free (RoHS 6) package