Automotive - A small part from SiTime runs a big part of your world
Soon, every car will have its own supercomputer, and since the clock is the heartbeat of electronics, every car will need upwards of 70 timing devices. While cars today depend on timing devices for things like GPS and backup cameras, self-driving cars will require even more accurate timing. They will have to keep time to one billionth of a second!
If timing fails…
- Your car may fail to detect other cars while changing lanes
- You could have a flat tire and not be notified
- Your navigation system would be lost
Only our MEMS timing solutions provide the robustness, reliability, and performance needed for operating the vehicles of today, tomorrow, and the future.
- Automotive AEC-Q100
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SiT8924B Automotive Grade Oscillators
The SiT8924B series from SiTime Corporation offer highly reliable and high quality AEC-Q100 compliant oscillators for automotive and extreme temperature applications. This device provides a perfect combination of a wide frequency range (1 MHz to 110 MHz), excellent stability (as low as ±20 PPM), and a wide temperature range (-55°C to +125°C) in one of the smallest (2.0 mm x 1.6 mm) packages that is not readily available from quartz. It also features one of the industry's best shock and vibration resistances.
The SiT8924 is available in five industry standard packages, and therefore replaces quartz products without any design changes. SiTime's MEMS oscillator consists of a MEMS resonator and a programmable analog circuit. The SiT8924 MEMS oscillator is built with SiTime’s unique MEMS First™ process. A key manufacturing step is EpiSeal™ during which the MEMS resonator is annealed with temperatures over +1000°C. EpiSeal creates an extremely strong, clean vacuum chamber that encapsulates the MEMS resonator and ensures the best performance and reliability in harsh environments.
SiT8925B MEMS Oscillators
SiTime’s SiT8925B series are reliable, high-quality AEC-Q100 oscillators for high-frequency automotive and other extreme-temperature applications. These oscillators provide the perfect combination of high frequency (up to 137 MHz), excellent stability (±20 ppm), and a wide temperature range (-55°C to +125°C) in a small 2.0 mm x 1.6 mm package that is not readily available from quartz. This device also features the industry's best shock and vibration resistance. The SiT8925 comes in five industry-standard packages and can replace quartz products without any design changes.
SIT2024B MEMS Oscillators
SiTime Corporation's SiT2024B series are reliable and high quality AEC-Q100 compliant SOT-23 oscillators for automotive and extreme temperature applications. These devices deliver a combination of wide frequency range (1 MHz to 110 MHz), excellent stability (±20 ppm), and extreme temperature range (-55°C to +125°C). They also feature 0.1 ppb/g vibration sensitivity, 50,000 g shock, and 70 g vibration resistance. The small SOT23-5 package offers board-level solder joint reliability and easy, low-cost optical-only, board-level inspection of solder joints.
The SiT2024 includes a programmable drive strength feature to provide a simple, flexible tool to optimize the clock rise/fall time for specific applications. Benefits from the programmable drive strength feature include improved system radiated electromagnetic interference (EMI) by slowing down the clock rise/fall time, improved downstream clock receiver’s (RX) jitter by decreasing (speeding up) the clock rise/fall time, and the ability to drive large capacitive loads while maintaining full swing with sharp edge rates. The high-performance features of the SIT2024 series products make them suitable for automotive infotainment systems, collision detection system, powertrain, and in-vehicle networking applications.
SiT2025B MEMS Oscillators
SiTime's SiT2025B MEMS oscillators come in the automotive industry standard SOT23 IC packaging and are ideal for extreme temperature applications. The small SOT23-5 package offers board level solder joint reliability and easy, low-cost, optical-only board level inspection of solder joints. These oscillators deliver the perfect combination of high-frequency range (up to 137 MHz), excellent stability (±20 ppm), and extreme temperature range (-55°C to +125°C). They also feature 0.1 ppb/g vibration sensitivity, 50,000 g shock, and 70 g vibration resistance.
SIT9025 AEC-Q100-Compliant MEMS Oscillators
The SiT9025 from SiTime Corporation is one of the industry's first AEC-Q100-compliant, automotive-grade spread spectrum oscillators. This device solves EMI problems by offering two techniques for emissions compliance: spread spectrum clocking and rise/fall time adjustment of the clock signal. The SiT9025 comes in three industry-standard packages and is supported by SiTime's Time Machine II programmer that allows engineers to replace quartz products without any design changes, and instantly program spread modulation and/or drive strength to quickly reduce emissions levels. This combination enables customers to accelerate time to revenue by ensuring emissions compliance with minimum engineering effort.
The increasing number of high-performance infotainment and wireless systems deployed in today's connected automobiles requires designers to pay special attention to electromagnetic energy present at frequencies to which these systems are sensitive. Electromagnetic interference (EMI) can be problematic in AI server/ECUs or ADAS camera modules that depend on the transfer of high volumes of data at high speeds. The clock can be the largest contributor of noise and often this EMI is not observed until the final stages of qualification. This can cause rework late in the design cycle, incurring unplanned delays and costs. SiT9025 MEMS oscillators are ideal for automotive ADAS camera and ADAS ECU applications.
SIT9386 MEMS AEC-Q100 Oscillators
SiTime’s SiT9386 is an AEC-Q100, ultra-low jitter differential oscillator that supports any frequency from 1 MHz to 220 MHz in 1 Hz increments. Based on SiTime's unique Elite Platform™, this device delivers exceptional dynamic performance of 0.23 ps (typ.) jitter and ±25 ppm in the presence of common environmental hazards such as shock, vibration, power supply noise, EMI, and board bending.
Unlike legacy quartz or SAW oscillators, the SiT9386 is available in a small 3.2 mm x 2.5 mm differential package in addition to the 7.0 mm x 5.0 mm package. This device supports all popular output signaling types including LVPECL, LVDS, and HCSL in combination with any voltage between 2.25 V to 3.63 V. The SiT9386 delivers exceptional dynamic performance like resilience to environmental stressors such as shock, vibration, and fast temperature transients making it suitable for harsh environments.
SIT9387 Series MEMS Oscillators
The SiT9387 series from SiTime is an AEC-Q100, ultra-low jitter, differential oscillator that supports any frequency from 220.000001 MHz to 725 MHz in 1 Hz increments. These oscillators are based on SiTime's unique Elite Platform™ and deliver exceptional dynamic performance of 0.23 power supply (ps) jitter (typical) and ±25 pulse-position modulation (ppm) in the presence of common environmental hazards such as shock, vibration, power supply noise, electromagnetic interference (EMI), and board-bending.
The SiT9387 series is available in an ultra-small 3.2 mm x 2.5 mm differential package and a 7.0 mm x 5.0 mm package. They support all popular output signaling types including low-voltage positive emitter coupled logic (LVPECL), low-voltage differential signaling (LVDS), and host clock signal level (HCSL) in combination with any voltage between 2.25 V to 3.63 V.
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