寿星定时解决方案 - 5G™的心跳

5G is on the way to bring broadband speed over mobile networks. To support the future of 5G, communications infrastructure is undergoing a complete overhaulcreating a denser network, closer to the consumer and in less controlled environments. With shorter-range radios, higher frequencies, and tighter channels, there is an even greater demand on the timing solution.

If timing fails

  • You experience dropped calls and slow web browsing on your phone
  • New services, such as instantaneous download of your favorite epic movie, will halt
  • Critical connectivity used by autonomous vehicles may fail

SiTime helps to keep everything in sync with greater accuracy and stability. We’ve designed our MEMS timing solutions to deliver the performance and reliability that's needed to keep network infrastructure running,even under the most demanding conditions like extreme temperatures, rapid airflow, shock, vibration, and electromagnetic interference.

Download Brochure:MEMS Timing Solutions for Communications & Enterprise

频率斜率(ΔF/ΔT):1 ppb /°C,10°C / min
Vibration immunity: 0.1 ppb/g
ADEV: 2e-11, 10s averaging time
PSNR: 0.2 ps/mV
Up to 30x more reliable than quartz
FIT rate: <2, MTBF: 1.2 billion hours



Excellent dF/dT: 50 ppt/°C, Vibration resistant: 1 ppb/g
Learn More

Featured Parts:SiT95148,SIT5711,SiT5358
Data centers

Ultra-low jitter, low power, smallest size

Featured Parts:SiT95141,SiT9501,SIT9375.
Microwave backhaul

Wide temperature range, Proven dynamic stability,Learn more

Featured Parts:SiT95148,SIT5711,SiT5359
Serial-data links

Better power supply noise rejection (PSNR) at 0.02 ps/mV

Featured Parts:SiT95145,SiT9501,SIT9375.

Maintains satellite lock under harsh conditions

Featured Parts:SiT5156,SiT5157,SiT5356

Smaller size, Wide temp range,Learn more

Featured Parts:SiT9501,SIT9375.,SiT9365
Timing servers

No activity dips, Resistant to thermal transients

Featured Parts:SiT95141,SIT5711,SiT5156,SiT5356


Featured Parts:SiT95141,SiT95145,SIT5711,SiT5356,SiT5358

Features & Benefits

What are customers saying?

“Our electronics must deliver the highest performance and reliability while working in harsh environments. SiTime’s MEMS timing solutions enable us to deliver this benefit to our customers.”

SC Moon
VP of R&D
DASAN Network Solutions

"SiTime's SiT5356 Super-TCXO enables a new class of wireless devices to communicate with a base station without having to be perfectly calibrated in a factory setting. Subscriber units can now dynamically remove frequency offset, improving channel performance on the fly as needed. The world-class stability of the SiT5356 means that the firmware can focus on other things - set and forget."

Lev M. Shuhatovich
Skylark Wireless


  • 1 to 220 MHz, ±0.05 to±0.25 ppm
  • Better dynamic stabilitywith± 1 ppb/°C frequency slope (ΔF/ΔT)
  • 高达+ 105°C的温度操作
  • Resilient to rapid temp change, airflow and vibration

Stratum3E OCXOs

  • 1 to 220 MHz, ±5to ±50 ppb,你p to +105°C temp operation
  • 没有活动蘸或微跳
  • Smallest 9 x 7 mm OCXO
  • Ease to use, no cover or restrictions on PCB placement


  • 1 MHz to 725 MHz, ±10 ppm, 0.07 to 0.23 ps jitter
  • 高达+ 105°C的温度操作
  • 0.02 ps/mv PSNR, I2C/SPI programmable
  • Industry-standard packages小于2.0 x 1.6 mm


  • 4 inputs, up to 11 outputs, 8 kHz to 2.1 GHz outputs
  • 片上MEMS谐振器,消除外部时钟
  • No quality and reliability issues associated with quartz clocks
  • 10倍的抗振动和弯曲


  • 1 to 4 PLLs, 4-inputs, up to 11 outputs, 8 kHz to 2.1 GHz outputs
  • 26 PS相累积(无望切换)
  • Low wander mode, zERO延迟缓冲模式
  • DCO with 50-ppt resolution


Application Briefs

5G新电台(NR) - RRU,AAU,大规模的MIMO

Application Briefs

Fronthaul and IP RAN Switches

Application Briefs


Application Briefs

Open RAN (ORAN) – Macro and Small Cells


Elite Precision Super-TCXOs for 5G, Small Cell and Time Synchronization


Elite Super-TCXOs for GNSS Applications


Emerald Platform™ Stratum 3E OCXOs


Cascade SiT9514x Clock-System-on-Chip Family

Application Notes

AN10052 IEEE 1588 Precision Time Protocol (PTP) in ITU-T Standards

Application Notes

AN10063 TCXO and OCXO Stability Degradation


Precision Mems TCXOS的同步系统性能优势......




SiTime MEMS Timing Solutions for 5G RRU


SiTime MEMS Timing Solutions for Open RAN




网络演进5G - 定时和同步


Tough 5G Timing Requires MEMS Clock Sources


Timing Solutions for Communications & Enterprise