SiT3542数据手册SiTime中文资料规格书

描述 Description

The Endura™ SiT3542 is a high-frequency, ultra-low jitter, user-programmable oscillator, engineered to deliver high reliability in aerospace and defense applications. This device utilizes SiTime's unique DualMEMS™ temperature sensing and TurboCompensation™ technology to deliver exceptional dynamic performance in harsh environments, making it:

Resistant to airflow and thermal shock

Resistant to mechanical shock and vibration

Robust against power supply noise

The device supports two in-system programming options:   1) Any-frequency mode to reprogram the clock output to any frequency between 1 MHz to 340 MHz   2) Digitally controlled oscillator (DCO) mode to steer or pull the clock up to ±3200 ppm

Endura SiT3542 is 100% screened through the SiTime Endura™ process flow to provide high reliability.

特性 Features

In-system programmable from 340.000001 MHz and 725 MHz via I2C/SPI
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)

Low acceleration sensitivity
• As low as 0.1 ppb/g

Integrated LDO for on-chip power supply noise filtering
0.05 ps/mV power supply noise rejection (PSNR)
Reduces BOM by eliminating a LDO

Programmable LVPECL, LVDS, or HCSL output
Programmable LVPECL, LVDS swing
LVDS common mode voltage control
Optimizes signal integrity

Superior reliability
1 billion hours MTBF
Lifetime Warranty: Reduces repair costs and field failures due to clock components

应用 Application

• Manpack Radios
• Field Communications
• Avionics
• Airframe Control
• Engine Management / Control
• Satellite Base Station
• Ruggedized Applications
• Command & Control
• UAV Communications
• Vehicle Communications
• Flight Computer Platform
• LEO SatCom
• GNSS Receivers