The **MCSO2F-17** is a high-performance, high-reliability crystal oscillator specifically engineered for harsh environments, including aerospace, defense, and down-hole drilling applications. It is part of the MCSO (Micro Crystal Silicon Oscillator) family, known for its extreme shock and vibration resistance. --- ### 1. Core Technical Specifications The "17" in the model name typically refers to the physical package size or a specific frequency stability tier within the series. Below are the standard technical parameters: | Feature | Specification | | :--- | :--- | | **Frequency Range** | 10 kHz to 225 MHz | | **Supply Voltage** | 1.8V, 2.5V, 3.3V, or 5.0V | | **Output Type** | CMOS / TTL compatible | | **Package Size** | 5.0 x 3.2 mm (Ceramic LCC) | | **Operating Temp** | -55°C to +125°C (Military) / up to +210°C (High Temp) | | **Stability** | ±20 ppm to ±100 ppm | --- ### 2. Key Electronic Characteristics #### A. Power Management The MCSO2F series is designed for low power consumption, making it suitable for battery-operated remote sensors. It features an **Enable/Disable** function (Tristate), allowing the oscillator to be turned off to save power when the clock signal is not required. #### B. Environmental Hardness Unlike standard commercial oscillators, the MCSO2F-17 is built to withstand: * **Shock:** Up to 10,000 g. * **Vibration:** Up to 20 g / 10-2,000 Hz. * **Sealing:** Hermetically sealed under Iodine-free conditions to prevent internal contamination. #### C. Frequency Generation It utilizes a high-quality AT-cut quartz crystal blank integrated with a low-power CMOS ASIC. This combination ensures a fast start-up time (typically < 5ms) and low jitter performance. --- ### 3. Pin Configuration The device typically follows a standard 4-pad or 6-pad layout for Surface Mount Technology (SMT): | Pin # | Function | Description | | :--- | :--- | :--- | | **1** | E/H | Enable/Disable (Tristate) or NC | | **2** | GND | Ground Connection | | **3** | Fout | Clock Signal Output | | **4** | Vdd | Supply Voltage | --- ### 4. Typical Applications Due to its robust construction, the MCSO2F-17 is found in: 1. **Avionics:** Flight control systems and cockpit displays. 2. **Energy:** Down-hole "Measurement While Drilling" (MWD) tools where temperatures exceed 150°C. 3. **Space:** Small-sat and CubeSat timing circuits (specific versions are radiation-hardened).