The **MCSO2FV** is a high-reliability, low-voltage CMOS crystal oscillator manufactured by **Microcrystal**. It is specifically designed for harsh environments and high-reliability applications, such as medical implants, aerospace, and downhole drilling. --- ## 1. Technical Specifications The following table outlines the primary electrical characteristics of the MCSO2FV series: | Parameter | Value / Range | Unit | | :--- | :--- | :--- | | **Frequency Range** | 10 kHz to 225 MHz | Hz | | **Supply Voltage ($V_{DD}$)** | 1.8V to 3.3V | V | | **Output Type** | CMOS / HC-MOS | - | | **Operating Temp Range** | -55 to +125 (Standard) | °C | | **Current Consumption** | < 1 to 20 (Frequency dependent) | mA | | **Package Size** | 5.0 x 3.2 x 1.3 | mm | --- ## 2. Key Electronic Features The MCSO2FV is distinguished by several specific electronic design choices: ### A. Frequency Stability It offers excellent stability over a wide temperature range. It is engineered to maintain a precise clock signal despite thermal fluctuations, which is critical for timing in synchronized systems. ### B. Power Management * **Low Power Consumption:** Designed for battery-operated devices. * **Enable/Disable Function:** Includes a Tri-state output (Pin 1), allowing the oscillator to be turned off to save power when the clock signal is not required by the MCU. ### C. Physical Construction * **Hermetic Sealing:** The electronic components are housed in a ceramic package with a Kovar lid, sealed under vacuum or nitrogen. This prevents moisture ingress and aging of the quartz crystal. * **Shock/Vibration Resistance:** The internal mounting of the quartz blank is reinforced to withstand high G-forces (up to 10,000g). --- ## 3. Pin Configuration The MCSO2FV follows a standard 4-pad layout for Surface Mount Devices (SMD): | Pin # | Function | Description | | :--- | :--- | :--- | | 1 | **E/D** | Enable/Disable (Tri-state) | | 2 | **VSS** | Ground | | 3 | **Fout** | Clock Output Signal | | 4 | **VDD** | Power Supply Voltage | --- ## 4. Typical Applications Because of its robustness, this part is commonly found in: * **Medical:** Pacemakers and neurostimulators. * **Defense:** Ruggedized communications and navigation. * **Industrial:** High-temperature sensors and telemetry.