New Oscillators and New Applications
Posted By: Piyush Sevalia

SiTime is now introducing the world’s highest performance MEMS oscillators, the SiT8208 and SiT8209. They exceed the performance of the quartz incumbents with exceptionally low jitter, low phase noise, low Allan deviation, wide frequency range, and superb stability. But the important point of this post is that our rate of improvement generation over generation is very fast and still accelerating.

SiTime introduced the world's first MEMS oscillator, the SiT8002, in 2007. Since then, we developed and introduced two additional generations; the SiT8102, the first high performance programmable MEMS oscillator with 10 PPM stability and wide output frequency, and the SiT8003, the world’s lowest power programmable oscillator. In the four years since 2007, we have shipped over 50 Million oscillators into consumer, computing, networking and industrial applications.

Along the way, we developed a range of derivative products, such as the world’s lowest jitter spread spectrum parts (SiT9001), the world’s first spread spectrum differential oscillators (SiT9002), the world’s first differential MEMS oscillators (SiT9102 and SiT9107), the world's lowest power high frequency oscillators (SiT8004), and the world’s thinnest oscillators (SiT8003XT). We also introduced the world’s first multi-output MEMS clock generators (SiT9103, SIT9104 and SiT9105). And now, with the SiT8208 and SiT8209, we’re offering higher performance, more features, and revolutionary innovation.

Our fourth generation in five years. These new oscillators have 12 kHz to 20 MHz integrated jitter of 600 femtoseconds, frequency stability of 10 ppm over -40 to +85C, and output frequencies from 1 to 220 MHz. They include a range of programmable features, for instance output drive strength and supply voltage, and are available in standard packages.

This is a huge accomplishment and implies a whole list in signal quality and integrity successes. These replace high-end quartz oscillators for low frequencies, overtone oscillators for high frequencies, and SAW oscillators for low jitter. There are no quartz oscillators that can concurrently serve these needs or meet these specs. These parts are targeted at applications that require exceptional quality clocks. Examples include multi-gigabit asynchronous transceivers such as 10GbE, GbE, SATA, SAS, Infiniband, Fibre Channel, PCI Express, and USB3.0; synchronous telecom applications such as SONET and Synchronous Ethernet (SynchE); wireline applications including xDSL, PLC, and DOCSIS; and wireless applications including WiFi and WiMax.

The point is that we are innovating faster than the incumbents in the quartz industry. Unlike quartz, our products incorporate highly evolved circuits and use semiconductor manufacturing techniques, allowing us to drive higher performance and improved features at a very fast rate.


Feb 11, 2022

Jan 11, 2022