Driverless Cars Clawing Closer To Reality

SiTime’s latest oscillators for automotive networking in advanced driver-assistance systems (ADAS) show promise in propelling the automotive industry forward in development of driverless cars. For reliable ADAS operation, computers autonomous vehicles (AVs) need to process data reliably and with low latency. According to their maker, SiT9386 and SiT9387 oscillators enable just that. They deliver stable and reliable timing signals for AI processors in automotive supercomputers, as well as for the interfaces that move data, such as PCI Express and 10G, 40G, and 100G Ethernet.


The devices are the first automotive products built on the Elite Platform a proprietary architecture that promises reliable performance in harsh operating conditions. Features include:

  • 30 times better than quartz in shock performance (10,000 g)
  • 20 times better than quartz in reliability (over 1 billion hours MTBF)
  • Extended temperature range (-40°C to +105°C)
  • Robust operation in the presence of system noise (0.02 ps/mV PSNR)

Additionally, the SiT9386/7 differential MEMS oscillators offer:

  • Any frequency between 1 MHz and 725 MHz, accurate to 6 decimal places
  • 0.23 ps typical RMS phase jitter (random)
  • Frequency stability as low as ±25 ppm
  • The smallest package size (3.2 x 2.5 mm) for size-limited applications
  • Also available in an industry-standard package (7.0 x 5.0 mm)
  • LVPECL, LVDS, and HCSL output signaling types

Samples of the SiT9386/7 oscillators are available now and will be available distributors in the first half of 2018. For now, quench your desire for more details via datasheets for the SiT9386 and SiT9387.

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