843N3960I中文资料FemtoClock® NG Crystal-to-3.3V LVPECL Clock Generator数据手册Renesas规格书

描述 Description

The 843N3960I is a LVPECL Clock Synthesizer. The 843N3960I can synthesize 100MHz, 125MHz, 156.25MHz and 212.5MHz from a single 25MHz crystal or reference clock. Utilizing an external loop filter capacitor, the 843N3960I is capable of holdover mode when the main reference clock becomes unstable, making this ideal for redundant timing applications.

特性 Features

·Fourth Generation FemtoClock® NG PLL technology
·Two differential LVPECL outputs
·Crystal oscillator interface designed for 12pF, 25MHz parallel resonant crystal
·CLK/nCLK input pair can accept the following differential input levels: LVPECL, LVDS, HCSL
·RMS phase jitter at 100MHz (12kHz – 20MHz): 0.510ps (typical)
·RMS phase jitter at 125MHz (12kHz – 20MHz): 0.575ps (typical)
·RMS phase jitter at 156.25MHz (12kHz – 20MHz): 0.504ps (typical)
·RMS phase jitter at 212.5MHz (12kHz – 20MHz): 0.512ps (typical)
·3.3V power supply
·-40°C to 85°C ambient operating temperature
·Available in lead-free (RoHS 6) package