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SiTime Cascade SiT9514x

SiTime’s SiT9514x family of network synchronizers, jitter cleaners, and clock generators is the first in the industry to integrate MEMS oscillators.

SiTime’s SiT9514x family of network synchronizers, jitter cleaners, and clock generators is the first in the industry to integrate MEMS oscillators. These MEMS-based devices eliminate activity dips, are resistant to shock and vibration, and simplify PCB board design. They fundamentally overcome quality and reliability issues associated with traditional quartz devices. Featuring 4 inputs, 11 outputs, and a rich set of programmable features, these devices enable designers to create a single-chip clock tree.

Features

Flexible frequency planning with up to 4 Frac-N PLLs
- 4 inputs, 11 outputs
- 8 kHz to 2.1 GHz differential
- 8 kHz to 250 MHz LVCMOS
- 1 PPS output
Continuous and simultaneous monitoring of all inputs
Industry leading hitless switching
- 26 ps phase build-out mode
- Lock loss, clock loss, and frequency drift monitors
Synchronized, holdover, or free run modes of operation
Fast switching, zero delay
Individually configurable outputs
- LVPECL, CML, HCSL, LVDS, or LVCMOS
- 1.8V, 2.5V, or 3.3V
125 fs typical RMS phase jitter at 156.25 MHz
Programmable output delay
Low loop bandwidth (1 mHz) for optimal wander
DCO mode (I2C, SPI) with 0.005 ppb frequency resolution

Benefits

Consolidates clock trees into a single device – reduces BOM, saves space, simplifies design
Improves system robustness by eliminating quartz activity dips and reliability issues
Resistant to EMI, supply noise, shock and vibration
Delivers excellent phase jitter in harsh conditions