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SiT3542 - I2C/SPI Programmable Oscillator

General Description

The SiT3542 is a ruggedized, ultra-low jitter, user programmable oscillator with a maximum acceleration sensitivity of 0.1 ppb/g.

SiT3542, designed for high reliability applications, offers the system designer great flexibility and functionality in the most demanding environments.

Key Features

  • 0.1 ppb/g acceleration sensitivity for harsh environments.
  • Programmable frequencies (factory or via I2C/SPI) from 340.000001 MHz to 725 MHz.
  • Digital frequency pulling (DCO) via I2C/SPI.
  • Output frequency pulling with perfect pull linearity.
  • 13 programmable pull range options to ±3200 ppm.
  • Frequency pull resolution as low as 5 ppt (0.005 ppb).
  • 0.21 ps typical integrated phase jitter (12 kHz to 20 MHz).
  • Integrated LDO for on-chip power supply noise filtering.

📥 Download Datasheet

Datasheet Details

Part number SiT3542
Manufacturer SiTime
File Size 1.32 MB
Description I2C/SPI Programmable Oscillator
Datasheet download datasheet SiT3542 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SiT3542 340 to 725 MHz Endura™ Series I2C/SPI Programmable Oscillator Description The SiT3542 is a ruggedized, ultra-low jitter, user programmable oscillator with a maximum acceleration sensitivity of 0.1 ppb/g. SiT3542, designed for high reliability applications, offers the system designer great flexibility and functionality in the most demanding environments. The device supports two in-system programming options after powering up at a default, factory programmed startup frequency: ◼ Any-frequency mode where the clock output can be reprogrammed to any frequency between 340 MHz and 725 MHz in 1 Hz steps ◼ Digitally controlled oscillator (DCO) mode where the clock output can be steered or pulled by up to ±3200 ppm with 5 to 94 ppt (parts per trillion) resolution.