SiTime announces two oscillators to bring driverless cars closer to reality

Two oscillators from SiTime, the SiT9386 and SiT9387 oscillators are for automotive networking in advanced driver assistance systems (ADAS). According to SiTime, they will propel the automotive industry forward in their development of driverless cars. For successful ADAS operation, supercomputers in vehicles will need to process massive amounts of data reliably and with low latency. This role is met by the SiT9386 and SiT9387 oscillators. They deliver stable and reliable timing signals for artificial intelligence (AI) processors in automotive supercomputers, as well as for the interfaces that move data, such as PCI Express and 10G, 40G, and 100G Ethernet.  

Piyush Sevalia, executive vice president of marketing at SiTime, believes: “With our unique MEMS and analog technologies, SiTime is the only timing company that is disrupting automotive applications”. He continues: “Timing is the heartbeat of electronics. Temperature changes, shock, and vibration can all destroy timing signals and can cause ADAS to fail. The SIT938X differential MEMS oscillators are the only timing solutions that are capable of withstanding such environmental stressors, while still delivering precision timing for ADAS operation.”

Earlier this year, SiTime introduced the SiT8924/5 oscillators, a family of ultra-robust oscillators for all-around cameras. The SiT9386/7 oscillators further extend the company’s offerings for the ADAS market. They are the first automotive products built on the Elite Platform. This is a proprietary architecture that delivers excellent performance in harsh operating conditions. Characteristics are shock performance that is 30 times better than quartz (10,000g) and 20 times better reliability than quartz (over one billion hours mean time between failure). They operate at the extended temperature range of -40 to +105 degree C and are robust in operation even in the presence of system noise (0.02ps/mV PSNR).

Output signaling types are LVPECL, LVDS, and HCSL. In addition, the SiT9386/7 differential MEMS oscillators offer any frequency between 1.0 and 725MHz, accurate to six decimal places, 0.23 pico seconds typical RMS phase jitter (random) and frequency stability as low as ±25ppm.

The SiT9386 and SiT9387 are offered in small packages, measuring just 3.2 x 2.5mm for space limited applications and are also available in an industry-standard package measuring 7.0 x 5.0mm.

Samples of the SiT9386 and SiT9387 oscillators are available now from SiTime and will be available from catalogue distributors, such as Digi-Key and Mouser, in the first half of 2018. Production Part Approval Process (PPAP) documentation, compliant with the AIAG manual, will be available in the first half of 2018.


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