Super-TCXOs
Elite Platform®, Elite X™, and Elite RF™ Super-TCXOs are precision timing solutions with exceptional dynamic performance and rich features. These devices solve deep-rooted timing problems for telecom, RF, networking, edge synchronization, and precision GNSS applications. By combining tight-stability and low phase noise with the robust package of a ceramic TCXO, SiTime Super-TCXOs replace legacy quartz OCXOs while increasing reliability, lowering power, and reducing size.
- Tight stability (±0.01 ppm to ±2.5 ppm), 1 to 220 MHz
- Better dynamic stability than quartz (±0.5 ppb/°C ΔF/ΔT), resistant to airflow and thermal shock
- -40°C to 105°C operation uniquely enables fan-less outdoor equipment
- Low phase noise: -159 dBc/Hz at 10 kHz (19.2 MHz nominal)
- Lower power consumption (110 mW, 2.5V) for battery-operated edge equipment
- I2C digital frequency tuning eliminates external DAC and sensitivity to board noise
- On-chip power supply noise filtering eliminates dedicated LDO
| Device | Datasheet | Buy Now | Frequency | Stability(ppm) | Output Type | Supply Voltage(V) | Temp. Range(°C) | Package Size(mm) |
|---|---|---|---|---|---|---|---|---|
| SiT5155 |
|
12 standard frequencies | ±0.5 | LVCMOS Clipped sinewave | 2.5 2.8 3 3.3 | -20 to +70 -40 to +85 -40 to +105 | 5.0 x 3.2 10-pin | |
| SiT5156 |
|
1 to 60 MHz | ±0.5 ±1 ±2.5 | LVCMOS Clipped sinewave | 2.5 2.8 3 3.3 | -20 to +70 -40 to +85 -40 to +105 | 5.0 x 3.2 10-pin | |
| SiT5157 |
|
60 to 220 MHz | ±0.5 ±1 ±2.5 | LVCMOS | 2.5 2.8 3 3.3 | -20 to +70 -40 to +85 -40 to +105 | 5.0 x 3.2 10-pin | |
| SiT5356 |
|
1 to 60 MHz | ±0.1 ±0.2 ±0.25 | LVCMOS Clipped sinewave | 2.5 2.8 3 3.3 | -20 to +70 -40 to +85 -40 to +105 | 5.0 x 3.2 10-pin | |
| SiT5357 |
|
60 to 220 MHz | ±0.1 ±0.2 ±0.25 | LVCMOS | 2.5 2.8 3 3.3 | -20 to +70 -40 to +85 -40 to +105 | 5.0 x 3.2 10-pin | |
| SiT5358 |
|
1 to 60 MHz | ±0.05 | LVCMOS Clipped sinewave | 2.5 2.8 3.0 3.3 | 0 to +70 -20 to +70 -40 to +85 -40 to +105 | 5.0 x 3.2 10-pin | |
| SiT5359 |
|
60 to 220 MHz | ±0.05 (±50 ppb) | LVCMOS | 2.5 2.8 3.0 3.3 | 0 to +70 -20 to +70 -40 to +85 -40 to +105 | 5.0 x 3.2 10-pin | |
| SiT5376 |
|
1 to 60 MHz | ±0.1 ±0.2 ±0.25 | LVCMOS Clipped Sinewave | 1.8 2.5 2.8 3.0 3.3 | -20 to 70 -40 to +85 -40 to +105 | 5.0 x 3.5 10-pin | |
| SiT5377 |
|
60 to 220 MHz | ±0.1 ±0.2 ±0.25 | LVCMOS | 1.8 2.5 2.8 3.0 3.3 | -20 to 70 -40 to +85 -40 to +105 | 5.0 x 3.5, 10-pin | |
| SiT5501 |
|
1 to 60 MHz | ±0.01 (±10 ppb) ±0.02 (±20 ppb) | LVCMOS Clipped sinewave | 2.5 2.8 3.0 3.3 | -40 to +85 -40 to +105 | 7.0 x 5.0 10-pin | |
| SiT5503 |
|
1 to 60 MHz | ±0.005 (±5 ppb) | LVCMOS Clipped sinewave | 2.5 2.8 3.0 3.3 | -20 to +70 -40 to +85 -40 to +95 | 7.0 x 5.0 10-pin | |
| SiT5977 |
|
156.25 MHz | ±0.1 ±0.2 ±0.25 | LVDS | 3.3 | -40 to +85 | 5.0 x 3.5, 10-pin |
Key Resources
SiT6722EBBC Evaluation Board User Manual (Clipped Sinewave)
How to Design with SiTime TCXOs and OCXOs
Elite Precision Super-TCXOs Solve Networking and Telecom Timing Issues
Synchronization System Performance Benefits of Precision MEMS TCXOs under Environmental Stress Conditions
AN10063 TCXO and OCXO Stability Degradation
AN10064 Improved System Performance with Digital Frequency Tuning in Precision Super-TCXOs
AN10039 TCXO Frequency Stability and Frequency Accuracy Budget