±0.5 ppm Super-TCXO for GNSS/GPS
The SiT5155 Super-TCXO is engineered for high-accuracy GNSS systems in precision farming, survey, construction, and other industrial equipment. Based on SiTime’s unique DualMEMS™ temperature sensing and TurboCompensation™ technology, this device delivers exceptional dynamic performance that enables the fastest lock to satellites in the presence of shock, vibration, rapid temperature change, power supply noise, and electromagnetic interference (EMI). The SiT5155 further minimizes the loss of satellite lock by eliminating activity dips and micro jumps.
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| Oscillator Type | TCXO-SE |
| Frequency | 12 standard frequencies |
| Frequency Stability (ppm) | ±0.5 |
| 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 |
Six industry standard footprints as small as 5.0 x 3.2 mm
SiT5155 pin assignments
SiT5155 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 micro jumps
- 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
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
- Industrial GNSS
- Telecom GNSS
- 高精度GNSS
- GPS/GNSS modules
| Resource Name | Type |
|---|---|
| SiTime MEMS First 工艺 |