Based on the technical prefix and industry standards, the **M7S22FDJ-R** refers to a high-precision, industrial-grade **Crystal Oscillator** (SPXO), typically manufactured by **NDK (Nihon Dempa Kogyo)** or similar timing device specialists. These components are essential for providing a stable clock signal to microprocessors and digital circuits. --- ### 1. Technical Specifications Below are the typical electronic characteristics for this series: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Type** | Crystal Oscillator (SPXO) | Simple Packaged Crystal Oscillator | | **Frequency Range** | 1 MHz to 80 MHz | Varies by specific suffix (often 22.1184MHz or similar) | | **Supply Voltage** | 1.8V to 3.3V | Supports low-power digital systems | | **Output Type** | CMOS | Standard logic level output | | **Package Size** | 7.0 x 5.0 mm | Standard 4-pad surface mount (SMD) | | **Stability** | ±50 ppm to ±100 ppm | Operating temperature stability | | **Operating Temp** | -40°C to +85°C | Industrial grade temperature range | --- ### 2. Component Pinout Functional Description The device typically utilizes a 4-pad layout: 1. **Pin 1 (Standby/Enable):** High or Open = Output Active; Low = High Impedance (Power Saving). 2. **Pin 2 (Ground):** Connected to the circuit common ground. 3. **Pin 3 (Output):** The generated square wave clock signal. 4. **Pin 4 (Vcc):** The DC power supply input. --- ### 3. Application Use Cases The **M7S** series is designed for reliability in digital communications and processing: * **Networking Hardware:** Routers, switches, and modems requiring precise timing for data packets. * **Industrial Automation:** PLCs and controllers operating in high-temperature environments. * **Consumer Electronics:** High-definition video equipment and audio interfaces. * **Microcontrollers:** Serving as the external clock source for high-speed MCU/DSP operations. --- ### 4. Key Part Number Breakdown (Prefix M7S) * **M7S:** Series designation (High-stability CMOS Oscillator). * **22:** Refers to the physical package dimensions (7.0 x 5.0 mm). * **F/D/J:** Suffixes usually denoting frequency stability, operating temperature range, and voltage requirements. * **-R:** Indicates "RoHS Compliant" or "Tape & Reel" packaging for automated assembly. ---