Super-TCXOs programmed for 32 MHz

10th January 2022
Mick Elliott

RFMW announces design and sales support for SiTime’s SiT5156 series of Elite Platform, MEMS Super-TCXOs.

The SiT5156 series oscillators deliver ±0.5 to ±2.5 ppm stability performance and can be factory-programmed to any combination of frequency (from 1 to 60 MHz), voltage and pull range.

Digital frequency pulling (DCTCXO) via I2C allows digital control of output frequency and pull range up to ±3200 ppm with frequency pull resolution down to 5 ppt.

SiTime’s DualMEMS and TurboCompensation temperature sensing technology deliver stable timing in the presence of environmental stressors – airflow, temperature perturbation, vibration, shock, and electromagnetic interference (EMI).

Programmability enables designers to optimise the clock configuration while eliminating the long lead time and customisation costs associated with quartz TCXOs where each frequency is custom built.

For example, the SIT5156AICFK-33N0-32.000000 is programmed for 32 MHz, clipped sinewave output with a 3.3 volt supply.

Applications include precision GNSS systems, microwave backhaul, network routers and switches, professional audio and video equipment, storage and servers.

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