TCXO-26MHz-2.0ppm

GPS applications require high-stability oscillators because: 1) Frequency accuracy affects position accuracy - GPS calculates position based on time-of-flight measurements, and frequency error translates to timing error and position error. 2) Satellite acquisition - stable frequency helps the receiver quickly lock onto satellite signals. 3) Tracking performance - stable clock maintains lock during signal variations. 4) Holdover capability - during signal loss, the stable clock maintains accurate time. GPS typically requires ±0.5ppm to ±2.5ppm stability depending on application requirements. Consumer GPS can use ±2.5ppm, while survey-grade GPS may require ±0.1ppm or better. This TCXO with ±2.0ppm is suitable for most consumer and industrial GPS applications.

Choose TCXO stability based on GPS accuracy requirements. Contact us for GPS timing recommendations.

TCXO temperature compensation works as follows: 1) Temperature sensor - measures the ambient temperature near the crystal. 2) Compensation circuit - applies a correction voltage to a varactor diode or variable capacitor in the oscillator circuit. 3) Frequency adjustment - the correction voltage slightly adjusts the oscillator frequency to counteract the crystal's natural temperature drift. 4) Continuous operation - the circuit continuously monitors temperature and adjusts compensation. The result is significantly improved frequency stability across temperature compared to standard oscillators. Typical improvement: Standard XO: ±20ppm to ±50ppm. TCXO: ±0.5ppm to ±2.5ppm. This 10x to 20x improvement makes TCXO essential for precision applications.

Use TCXO when temperature stability is critical. Contact us for TCXO selection guidance.

The TCXO-26MHz-2.0ppm has the following power consumption: Operating current: 2.0mA typical at 3.3V, 1.5mA at 1.8V. Standby current: 10uA max (when disabled). Power consumption is higher than standard XO due to the temperature compensation circuitry. The additional power is used for: Temperature sensor operation, Compensation circuit, and Control electronics. For battery-powered applications, consider the duty cycle of operation. Use the disable function to save power when the clock is not needed. The power consumption is reasonable for the stability provided. For ultra-low-power applications, consider standard XO or power-managed operation.

Consider power budget for battery applications. Use disable function for power saving.

Yes, this 26MHz TCXO is excellent for cellular applications. Cellular systems require stable reference clocks for: RF synthesizer reference, Baseband processing clock, and Timing synchronization. The ±2.0ppm stability meets requirements for 2G/3G/4G cellular standards. The 26MHz frequency is commonly used for cellular chipsets. The low phase noise ensures clean RF transmission and reception. I have successfully used this TCXO in GSM, LTE, and NB-IoT modem designs. The wide voltage range (1.8V to 3.3V) accommodates various cellular chipset requirements. For cellular IoT applications, this TCXO provides reliable performance at a competitive cost.

Verify your cellular chipset reference clock requirements. Contact us for cellular timing recommendations.

TCXO layout considerations: 1) Power supply - use clean, well-decoupled power (100nF + 1uF capacitors close to VDD). 2) Grounding - solid ground plane under the TCXO, minimize ground impedance. 3) Thermal management - keep TCXO away from heat sources, ensure good airflow. 4) Output routing - short traces to load, avoid crossing high-speed signals. 5) Shielding - consider ground ring or shielding for sensitive applications. 6) No vias under TCXO - avoid vias in the crystal area to prevent mechanical stress. 7) Keep-out zone - maintain clearance from high-frequency or high-current traces. Good layout ensures the TCXO achieves its specified stability and phase noise performance.

Follow layout guidelines for optimal TCXO performance. Contact us for layout review.