The Endura™ ruggedized SiT5543 Super-TCXO® provides ±5 ppb stability over temperature, from -40°C to 95°C, delivering OCXO-level frequency stability without the use of custom-made, low g-sensitivity quartz OCXOs. The MEMS-based SiT5543 is ideal for PNT, aerospace-defense networking and communication systems. In a small 5 x 7 mm footprint and 2 mm high ceramic package, the SiT5543 is ideal for replacing bulky, less-robust, and power-consuming quartz OCXOs. The SiT5543 is 40% smaller, 100x more resilient, and up to 2x lower power.
This Super-TCXO is engineered for exceptional dynamic performance—offering the most stable timing in the presence of environmental stressors such as airflow, temperature perturbation, vibration, shock, and EMI. It delivers ±0.3 ppb/°C typ. frequency slope (dF/dT), 1.5e-11 ADEV at 10 second averaging time and 0.01 ppb/g acceleration sensitivity.
The SiT5543 is 100% screened through the SiTime Endura process flow to provide high reliability. It can be factory-programmed to a variety of configurations, eliminating the long lead time and customization costs of quartz products.
"Specs" | "Value" |
---|---|
Frequency | 1 to 60 MHz |
Frequency Stability (ppm) | ±0.005 (±5 ppb) |
Operating Temperature Range (°C) | -40 to 85, -40 to 95 |
Package Type (mm²) | 7.0 x 5.0 |
Oscillator Type | TCXO-SE |
Pull Range (ppm) | ±6.25, ±10, ±12.5, ±25, ±50, ±80, ±100, ±125, ±150 , ±200, ±400, ±600, ±800, ±1200, ±1600, ±3200 |
Pin1 Feature | Output Enable, No Connect, software OE control |
Voltage Supply (V) | 2.5 ±10%, 2.8 ±10%, 3.0 ±10%, 3.3 ±10% |
Features | 0.01 ppb/g acceleration sensitivity, ±0.3 ppb/°C frequency slope, ±150 ppb 20-year aging, 1.5e-11 ADEV at 10 second averaging time, I2C digital control |
Availability | Pre-production Sampling |
Image: Ceramic 10-pin 7050 package, top & bottom
Reduces BOM by eliminating a dedicated LDO for TCXO
Frequency Slope (dF/dT) Calculator – Calculate frequency slope over temperature
Time Error Simulation Software – Simulate and analyze the impact of the local oscillator
TimeMaster Configuration Software – Configure and evaluate oscillators via I2C/SP
Reliability Calculator – Get FIT/MTBF data for various operating conditions
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Quantity | Unit Price | |
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199 | --- | |
100-499 | --- | |
500-999 | --- | |
1,000-4,999 | --- | |
> 4,999 | --- |