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1 to 60 MHz, ±0.5 to ±2.5 ppm Super-TCXO
LoginThe SiT5156 Super-TCXO™ is a highly flexible, tight-stability oscillator for high-reliability systems in industrial, server and storage, networking and telecom. Based on SiTime’s unique DualMEMS™ temperature sensing and TurboCompensation™ technology, this device delivers excellent dynamic performance in the presence of common environmental hazards, such as airflow, temperature perturbation, vibration, shock, power supply noise, and electromagnetic interference (EMI).
The SiT5156 can be factory-programmed to any combination of frequency, stability, voltage, and pull range. This programmability enables designers to customize MEMS TCXO configuration for best system performance while eliminating the long lead time and customization costs associated with quartz devices.
Program oscillators to get instant samples, optimized performance, and fast prototyping | Learn More

"Specs" | "Value" |
---|---|
Oscillator Type | TCXO-SE |
Frequency | 1 to 60 MHz |
Frequency Stability (ppm) | ±0.5, ±1, ±2.5 |
Phase Jitter (rms) | 0.31 ps |
Output Type | LVCMOS, Clipped sinewave |
Operating Temperature Range (°C) | -20 to +70, -40 to +85, -40 to +105 |
Pull Range (ppm) | ±6.25, ±10, ±12.5, ±25, ±50, ±80, ±100, ±125, ±150, ±200, ±400, ±600, ±800, ±1600, ±3200 |
Voltage Supply (V) | 2.5, 2.8, 3, 3.3 |
Package Type (mm²) | 5.0 x 3.2 10-pin |
Features | Precision TCXO |
Availability | Production |
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Image: Elite TCXO Ceramic 5032 10-pin package, top & bottom
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SiT5156 pin assignments
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SiT5156 block diagram
Exceptional dynamic stability under airflow, fast temp. ramp
- ±500 ppb over-temp. stability
- 3e-11 ADEV at 10 second average time
- ±15 ppb/°C frequency slope (ΔF/ΔT), 10 °C/min ramp
- Enables fastest satellite lock under any operating conditions
20x better phase noise under vibration
- Minimizes loss of satellite lock in high-vibration environments
No activity dips or microjumps
- Eliminates the need for costly screening or burn-in test
0.2 ps/mV power supply noise rejection (PSNR)
- Reduces BOM by eliminating a dedicated LDO for the TCXO
LVCMOS or Clipped sinewave output
- Optimize for best balance between EMI and jitter
Rich programmable features
- Any frequency between 1 to 60 MHz
- ±0.5 ppm, ±1 ppm, ±2.5 ppm
- 2.25 to 3.63 V
- Large pull range from ±6.25 to ±3200 ppm:
- Customize TCXO specifications for optimal system performance
Digital frequency tuning through I2C
- Eliminate frequency shift caused by board noise
Superior reliability
- 1 billion hours MTBF
- Lifetime warranty: Reduces repair costs and field failures due to clock components
- Data communication systems
- Microwave backhaul
- Ethernet switches and routers
- 服务器与存储
- 音频与视频
- 测量与测试
- Industrial IEEE1588
- 高精度GNSS
- GPS/GNSS modules
- 智能城市
- 家庭信息娱乐系统
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- SiT5156 10.949297MHz Clipped Sinewave
- SiT5156 10MHz Clipped Sinewave
- SiT5156 12.288MHz Clipped Sinewave
- SiT5156 16.368MHz Clipped Sinewave
- SiT5156 16.369MHz Clipped Sinewave
- SiT5156 16.384MHz Clipped Sinewave
- SiT5156 16.3676MHz Clipped Sinewave
- SiT5156 16.367667MHz Clipped Sinewave
- SiT5156 19.2MHz Clipped Sinewave
- SiT5156 20MHz Clipped Sinewave
- SiT5156 24.576MHz Clipped Sinewave
- SiT5156 24.5535MHz Clipped Sinewave
- SiT5156 24MHz Clipped Sinewave
- SiT5156 25MHz Clipped Sinewave
- SiT5156 26MHz Clipped Sinewave
- SiT5156 30.72MHz Clipped Sinewave
- SiT5156 38.4MHz Clipped Sinewave
- SiT5156 38.88MHz Clipped Sinewave
- SiT5156 40MHz Clipped Sinewave