SiTime SiT8924 Automotive AEC-Q100 Oscillators
SiTime SiT8924 and SiT8924B automotive AEC-Q100 oscillators include a programmable drive strength feature to provide a simple, flexible tool to optimize the clock rise/fall time for specific applications. The programmable drive strength improves system radiated electromagnetic interference (EMI) by slowing down the clock rise/fall time. The programmable drive strength also improves the downstream clock receiver’s (RX) jitter by decreasing (speeding up) the clock rise/fall time. The components have the ability to drive large capacitive loads while maintaining full swing with sharp edge rates.
The oscillators exhibit EMI reduction by slowing rise/fall time and jitter reduction with faster rise/fall time. Power supply noise can be a source of jitter for the downstream chipset. One way to reduce this jitter is to speed up the rise/fall time of the input clock. Some chipsets may also require faster rise/fall time in order to reduce their sensitivity to this type of jitter.
The components have high output load capability. The rise/fall time of the input clock varies as a function of the actual capacitive load the clock drives. At any given drive strength, the rise/fall time becomes slower as the output load increases. The devices can support up to 60pF or higher in maximum capacitive loads with drive strength settings.
Features
- AEC-Q100
- Operating temperature from -55°C to +125°C
- Frequencies between 1MHz and 110MHz accurate to 6 decimal places
- Supply voltage of 1.8V or 2.25V to 3.63V
- G-sensitivity of 0.1 PPB/G
- Low power consumption of 3.8mA typical at 1.8V
- LVCMOS/LVTTL compatible output
- Pb-Free, RoHS and REACH Compliant, Halogen-free and Antimony-free
Applications
- Automotive, extreme temperature and other high-rel electronics
- Infotainment systems, collision detection devices, and in-vehicle networking
- Powertrain control
Additional Resources
Veröffentlichungsdatum: 2017-06-12
| Aktualisiert: 2022-03-31