Oscillator shrinks size and power

Oscillator shrinks size and power

The Elite X Super-TCXO from SiTime provides stable timing from 1 MHz to 60 MHz for edge computing, vehicles, and cellular base stations.

Communications depends on timing, which start with an oscillator. The SiT5501 Elite X Super-TCXO from SiTime produces clock signals at any frequency from 1 MHz to 60 MHz, which you can then multiply up to your needed clock or data rate. For most devices, the output frequency is set at the factory; you need to specify it at time of order. SPI and I2C interfaces that let you set the device’s output frequency are also available. The digital frequency tuning lets you compensate for frequency shifts cause by noise.

Because you need to use a frequency multiplier to achieve the final clock signal, you need to start with a stable oscillator. The Elite X features ±10 ppb stability from over a temperature range of -40 to 105°C. Temperature stability is important because “more and more electronics will be outdoors,” said SiTime’s Piyush Sevalia in a discussion with EE World. “5G radios such as small cells, edge computing devices, and vehicles all operate outdoors and must be resistant to temperature, thermal shock, and vibration.”