SiT95145型

The SiT95145 is a single-chip MEMS jitter cleaner that provides the highest level of clock tree integration and consolidates multiple clock ICs and oscillators into a single device. Its low noise quad-PLL architecture and programmable output drivers provide up to 10 differential or 20 LVCMOS low-jitter clock outputs. It supports 4 additional clock inputs with Frac-N dividers, enabling virtually any input-to-output frequency translation configurations from 8 kHz to 2.1 GHz.

This jitter cleaner integrates SiTime’s third-generation MEMS resonator. This integrated MEMS approach eliminates the dependency on a crystal reference, along with all quartz related issues. It enables a true clock-system-on-a-chip that improves system robustness:

• 消除晶体电容失配的时钟合成
• Always-reliable startup even at cold temperature and other harsh environmental conditions
• No jitter degradation due to noise coupling onto a crystal interface
• 没有石英固有的活性下降/频率跳跃
• 10倍的抗振动和弯曲

SiT95145由定时器支持™ 必威体育官网手机登录简化时钟树设计的软件。该设备也可以随附用户指定的出厂预编程默认启动配置。在制造过程中，可以使用两组一次性可编程（OTP）存储器对设备配置进行两次重新编程，或者通过I2C/SPI在系统中进行配置，以增加BOM灵活性。SiT95145还支持SiT6503EB公司评估委员会。