The **M7S76FDJ-R** is a specific part number belonging to a high-performance **Oscillator** series, typically manufactured by **NDK (Nihon Dempa Kogyo Co., Ltd.)**. It falls under the category of Surface Mount Device (SMD) Crystal Oscillators, designed for high-stability timing and frequency control. --- ### 1. Key Technical Specifications Below is a breakdown of the typical electronic characteristics for this part series: | Parameter | Typical Value / Range | | :--- | :--- | | **Component Type** | Crystal Oscillator (SPXO) | | **Frequency Range** | Usually between 1 MHz to 170 MHz | | **Supply Voltage (Vcc)** | +2.5V to +3.3V (Standard) | | **Output Type** | CMOS / LV-CMOS | | **Package Size** | 7.0 x 5.0 mm (7050 SMD Package) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Frequency Stability** | ±20ppm to ±50ppm | --- ### 2. Electronic Part Composition This component is an "active" electronic part, meaning it requires power to operate. It consists of two main internal sections: 1. **AT-Cut Quartz Crystal:** The heart of the device, providing the mechanical resonance that determines the frequency. 2. **Oscillator IC:** A CMOS integrated circuit that provides the necessary gain to maintain oscillation and buffers the signal for output to other digital circuits. --- ### 3. Pin Configuration (Internal Mapping) Most 7050 SMD oscillators like the M7S series utilize a 4-pin layout: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | Stand-by (OE) | High: Output enabled; Low: High impedance (Power saving) | | **2** | GND | Ground connection | | **3** | Output | Clock signal output (CMOS level) | | **4** | Vcc | Power supply voltage | --- ### 4. Application Use-Cases The M7S76FDJ-R is commonly found in circuits requiring a reliable "heartbeat" or reference clock: * **Networking:** Ethernet switches, routers, and high-speed modems. * **Computing:** Industrial PCs, motherboards, and peripheral controllers. * **Consumer Electronics:** High-definition video equipment and digital audio interfaces. --- ### 5. Part Number Breakdown (Prefix Logic) * **M7:** Usually denotes the 7.0 x 5.0 mm package size. * **S:** Refers to the "Simple" or Standard SPXO (Simple Packaged Crystal Oscillator) series. * **FDJ-R:** These suffixes specify the frequency stability, voltage requirements, and packaging format (e.g., Tape & Reel).