Low Jitter, 10-output MEMS Clock Generator
瀑布™ SiT95141是一款单芯片MEMS时钟发生器,针对最高级别的时钟树集成进行了优化。这种片上时钟系统(ClkSoC)将多个时钟IC和振荡器整合到一个设备中。它的低噪声四PLL架构和可编程输出驱动器提供多达10个差分或20个LVCMOS低抖动时钟输出。它支持4个额外的时钟输入与分形分频器,使几乎任何输入到输出频率转换配置从8千赫到2.1千兆赫。必威体育官网手机登录
This clock generator integrates SiTime’s third-generation MEMS resonator. This integrated MEMS approach eliminates the traditional clock dependency on crystal reference and quartz related issues, and improves system robustness:
- Always accurate clock synthesis by eliminating crystal capacitive mismatch
- Always reliable startup even at cold temperature and in other harsh environmental conditions
- No jitter degradation because of noise coupling onto a crystal interface
- 石英没有固有的活性下降/频率跳跃
- 10倍的抗振动和弯曲
SiT95141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。SiT95141还支持必威体育官网手机登录SiT6503EB公司评估委员会。
Number of Inputs | 4 |
输出数量 | 10 |
Input Frequency Range | 8 kHz至2.1 GHz(差分),8 kHz至250 MHz(LVCMOS) |
输出频率范围 | 8 kHz至2.1 GHz(差分),8 kHz至250 MHz(LVCMOS), 1 PPS (one output only) |
Output Type | LVPECL、CML、HCSL、LVDS、LVCMO |
PLL/时钟域数 | 4 PLL, 1 time domain |
Operating Temperature Range (°C) | -40 to +85 |
Phase Jitter (rms) | 120 fs |
Voltage Supply (V) | 1.8, 2.5, 3.3 |
操作模式 | 自由运行,同步 |
包装类型(mm²) | 9x9 mm, 64-pin |
Features | 冗余时钟输入,手动切换,通过I2C或SPI的DCO模式,5 ppt分辨率,可编程输出延迟控制 |
可利用性 | 取样 |
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Single-chip clock generator consolidates MEMS resonator, multiple clock ICs and oscillators into a single 9 x 9 mm 64-pin device
集成MEMS的芯片上时钟系统,简化了设计
- 无晶体容量匹配问题,频率合成始终精确
- 无噪声耦合到晶体电路,保证抖动
- Resistant to vibration and board bending, anywhere PCB placement
灵活的功能可实现最高级别的时钟整合
- 10个输出,4个独立的PLL,高达2.1 GHz的输出频率,实现最大的频率灵活性
- Individually configurable output types and voltage to support a wide range of processors and SOCs
- 可选4个输入,实现灵活的输入输出频率转换
- 通过I2C或SPI进行系统内编程,进一步减少SKU
35% space saving, ideal for high density designs
- 9 x 9 mm封装,无需外部XTAL/振荡器
Semiconductor level quality and reliability, eliminates quartz-related issues associated with traditional clocks
- Clock tree consolidation replacing crystal oscillators (XOs) and buffers
- 低抖动时钟频率转换与产生
- 10G/100G/400G以太网时钟
- 为成帧器、映射器和处理器提供的光传输网络(OTN)时钟
- FPGA, processor, and memory clocking
- Storage, servers and datacenters
- 测量与测试
- 广播视频
SiT6503EB公司Evaluation BoardUser Manual
时钟软件计时器--简化时钟树设计(联系时间)