The **M7R48FBJ-R** is a specialized electronic component, typically classified as a high-performance **Oscillator** (specifically a Surface Mount Device or SMD Crystal Oscillator). These parts are critical for providing a stable clock signal in digital circuits. --- ### 1. Technical Specifications While exact parameters can vary based on the manufacturer’s specific series, parts with this nomenclature generally fall under the following specifications: | Feature | Typical Specification | | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) | | **Package Type** | SMD (Surface Mount Device) | | **Standard Dimensions** | Often 7.0mm x 5.0mm (standard "7050" size) | | **Supply Voltage** | Usually 3.3V or 5.0V | | **Output Type** | CMOS / TTL | | **Frequency Stability** | ±25ppm to ±100ppm | --- ### 2. Internal Electronic Structure The device is an integrated module consisting of two primary internal components: 1. **Quartz Crystal Resonator:** A thin slice of quartz that vibrates at a specific frequency when an electric field is applied (Piezoelectric effect). 2. **Oscillation IC:** A small integrated circuit that provides the necessary amplification and feedback to maintain the oscillation and convert the sine wave into a clean square wave (digital clock signal). --- ### 3. Pin Configuration Standard 7050 SMD oscillators like the M7R series typically utilize a 4-pin layout: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | E/D or NC | Enable/Disable (Tri-state) or No Connection | | **2** | GND | Ground connection | | **3** | Output | The generated clock signal frequency | | **4** | Vdd | DC Power Supply voltage | --- ### 4. Common Applications These parts are found in electronic assemblies requiring precise timing: * **Networking Gear:** Switches, routers, and modems. * **Industrial Control:** PLCs and automation controllers. * **Computing:** Motherboards and peripheral interface cards. * **Embedded Systems:** Microcontroller clock sources. ---