The **MCSO2EUW** is a high-performance, military-grade surface-mount clock oscillator. It is specifically designed by **Micro Crystal AG** for applications requiring extreme reliability, wide temperature ranges, and low power consumption. --- ### 1. General Specifications The MCSO2EUW is part of a family of oscillators known for their small footprint and rugged construction. Below are the primary technical characteristics: | Feature | Specification | | :--- | :--- | | **Component Type** | SMT Quartz Crystal Oscillator | | **Frequency Range** | 10.0 kHz to 225 MHz (Variable by model) | | **Supply Voltage ($V_{DD}$)** | 1.8V, 2.5V, 3.3V, or 5.0V | | **Operating Temperature** | -55°C to +125°C (Military Grade) | | **Package Size** | 5.0 x 3.2 x 1.2 mm | | **Output Type** | CMOS / HC-MOS Compatible | --- ### 2. Key Electronic Features #### A. Power Management The "EUW" suffix often denotes specific power configurations. These oscillators are designed for **Low Power Consumption**, making them ideal for battery-operated mission-critical devices. They typically feature an "Enable/Disable" function on Pin 1 to save power when the clock signal is not required. #### B. Frequency Stability The internal quartz crystal is precision-cut to maintain stability even under thermal stress. * **Aging:** Very low aging rates (approx. ±3 ppm in the first year). * **Startup Time:** Extremely fast startup (typically < 5ms) to ensure the system initializes immediately upon power-up. #### C. Environmental Durability The electronic architecture is housed in a hermetically sealed ceramic package with a metal lid. This provides: * **High Shock Resistance:** Up to 5000g. * **Vibration Resistance:** Withstands high-vibration environments typical in aerospace or drilling telemetry. --- ### 3. Pin Configuration The MCSO2EUW typically utilizes a 4-pad layout: | Pad # | Function | Description | | :--- | :--- | :--- | | **1** | E/D or NC | Enable/Disable control or No Connection | | **2** | GND | Ground connection | | **3** | Fout | Frequency Output (CMOS) | | **4** | $V_{DD}$ | Power Supply Voltage | --- ### 4. Common Applications Due to its ruggedized nature, this part is rarely found in consumer electronics. Instead, it is used in: 1. **Aerospace & Defense:** Navigation systems and secure communication. 2. **Down-hole Drilling:** Sensors and telemetry tools for oil and gas (high temperature). 3. **Avionics:** Flight control computers. 4. **Medical:** High-reliability diagnostic equipment.