SI5328B-C-GMR Silicon Labs (芯科) 锁相环(PLLs)
产品概述
时钟发生器及支持产品 SyncE jitter attenuating clock
Description
The Si5328 is a jitter-attenuating precision clock multiplier for Synchronous Ethernet applications requiring sub 1 ps jitter performance and ultra-low loop bandwidth. Whencombined with a low-wander, low jitter reference oscillator, the Si5328 meets all of the wander, MTIE, TDEV, and other requirements listed in ITU-T G.8262/Y.1362. The Si5328 accepts two input clocks ranging from 8 kHz to 710 MHz and generates two output clocks ranging from 8 kHz to 808 MHz. The two outputs are divided down separately from a common source.
Features
Fully-compliant with ITU-T G.8262, EEC options 1 and 2.
Generates any frequency from 8kHz to 808MHz.
Ultra-low jitter clock outputs with jitter generation as low as 0.3 ps rms (12 kHz–20 MHz)
Integrated loopfilter with selectable loop bandwidth (0.1 Hz; 1 to 10 Hz)
Dual clock inputs with manual or automatically controlled hitless switching
Dual clock outputs with selectable signal format(LVPECL, LVDS, CML, CMOS)
LOL, LOS, FOS alarm outputs
I2C or SPI programmable
On-chip voltage regulator for 2.5 ±10% or 3.3 V ±10% operation
Small size: 6 x 6 mm 36-lead QFN
Pb-free, ROHS compliant
Applications
G.8262 Synchronous Ethernet, EEC options 1 and 2
GbE/10GbE/100GbE Synchronous Ethernet
Carrier Ethernet switches, routers
