SiT3521中文资料1 to 340 MHz I2C/SPI Programmable Oscillator数据手册SiTime规格书

描述 Description

The SiT3521 is an ultra-low jitter, user programmable oscillator. This device is based on SiTime's Elite Platform™ that utilizes unique DualMEMS™ temperature sensing and TurboCompensation™ technology to deliver exceptional dynamic performance, making it:

Resistant to airflow and thermal shock

Resistant to shock and vibration

Superior power supply noise rejection

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

Combined with wide frequency range and user programmability, this device is ideal for telecom, networking and industrial applications that require a variety of frequencies and operate in noisy environments.

特性 Features

In-system programmable from 1 MHz and 340 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)

Dynamic performance
0.1 ppb/g, superior shock and vibration resistance
No activity dips or micro jumps

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

• 10G to 100G Ethernet
• SONET
• Data Centers
• Test & Measurement

简介

SiT3521属于晶体振荡器谐振器的振荡器。由制造生产的SiT3521振荡器振荡器产品用作频率/时间基准源，与常用于类似用途的晶体产品相比，区别在于它们集成了更多功能，用于生成输出的保持和稳定。最简单的振荡器包括晶体或其他谐振元件，并且具备必要的功能，让用户能够获取频率基准，而无需密切关注谐振元件的工作。更先进的器件还集成了温度补偿或控制功能，以获取更稳定的基准或能够进行选择性调节的基准。