The **FTS-2E-R/Q** refers to a specific series of high-precision **Quartz Crystal Oscillators**, typically categorized as **TCXOs** (Temperature Compensated Crystal Oscillators) or high-stability clock modules. These components are essential for maintaining precise frequency control in electronic circuits. ### 1. Key Technical Specifications The following table outlines the typical electrical characteristics for this component series: | Parameter | Specification (Typical) | | :--- | :--- | | **Frequency Range** | Usually 10 MHz to 52 MHz | | **Stability** | ±0.5 ppm to ±2.5 ppm (Temperature dependent) | | **Supply Voltage** | 3.3V or 5.0V DC | | **Output Type** | CMOS / Clipped Sine Wave | | **Operating Temperature** | -40°C to +85°C | | **Package Style** | Surface Mount (SMD) | --- ### 2. Breakdown of the Model Name Electronic part numbers are often alphanumeric codes representing specific features: * **FTS:** Refers to the series/manufacturer prefix (often associated with frequency timing solutions). * **2E:** Indicates the package size or physical footprint (e.g., 2.5mm x 2.0mm or 3.2mm x 2.5mm). * **R/Q:** Usually denotes the packaging type (Tape & Reel) and the specific screening/quality grade (Industrial vs. Commercial). --- ### 3. Internal Components and Function The FTS-2E series is more than just a piece of quartz; it is an integrated circuit module containing: 1. **Quartz Crystal:** The mechanical resonator that vibrates at a specific frequency. 2. **Varactor Diode:** Used for frequency tuning. 3. **Thermistor Network:** Senses the ambient temperature. 4. **Compensation IC:** Adjusts the voltage applied to the crystal based on the thermistor's reading to counteract frequency "drift" caused by temperature changes. --- ### 4. Common Applications These parts are used where standard oscillators are too "loose" in their timing, but a full Atomic Clock or OCXO (Oven Controlled Oscillator) is too expensive/power-hungry: * **Wireless Communication:** Ensuring the radio frequency (RF) stays on the correct channel. * **GPS Receivers:** Providing the precise timing required to calculate satellite distances. * **IoT Devices:** Synchronizing data transmissions in low-power environments. * **Network Switches:** Managing high-speed data packets without timing errors. ---