The **M3A14FCD-R** is a specific part number belonging to a high-frequency, high-precision electronic component category, typically associated with **TCXO (Temperature Compensated Crystal Oscillators)** or similar timing modules used in telecommunications and industrial networking. Below is a breakdown of its technical composition and characteristics. --- ### 1. Technical Specifications Overview The following table highlights the typical electronic parameters found in the M3A series: | Feature | Specification | Description | | :--- | :--- | :--- | | **Component Type** | TCXO | Temperature Compensated Crystal Oscillator | | **Package Type** | SMD | Surface Mount Device (Ceramic) | | **Package Size** | 7.0 x 5.0 mm | Standard industry footprint | | **Output Type** | CMOS / Clipped Sine | High-speed logic compatibility | | **Voltage Supply** | 3.3V (Typical) | standard operating voltage | | **Tolerance** | ±1.0 ppm to ±2.5 ppm | High stability across temperature ranges | | **RoHS Status** | Compliant (R) | Lead-free and environmentally safe | --- ### 2. Breakdown of the Part Number While specific manufacturer codes can vary slightly, the alphanumeric string generally decomposes as follows: * **M3A**: Refers to the series or family (often 3.3V oscillators). * **14**: Often denotes the frequency stability or specific physical dimensions. * **F**: Usually represents the operating temperature range (e.g., Industrial: -40°C to +85°C). * **C**: Denotes the output type (CMOS). * **D**: Voltage supply identifier (3.3V). * **-R**: Indicates the part is **RoHS** compliant and supplied on **Tape & Reel**. --- ### 3. Key Electronic Functions The M3A14FCD-R serves three primary functions in a circuit: 1. **Frequency Generation**: It provides a highly stable clock signal required by microprocessors and FPGAs. 2. **Temperature Compensation**: Unlike standard crystals, this part contains an internal compensation circuit that adjusts for frequency "drift" caused by heat changes. 3. **Signal Integrity**: The "C" (CMOS) output ensures a clean square wave that can drive multiple logic gates without significant degradation. ### 4. Typical Applications These parts are commonly found in: * **Networking Equipment**: Routers, switches, and base stations. * **GPS/GNSS**: High-precision positioning systems. * **Industrial Automation**: Controllers that operate in environments with fluctuating temperatures. --- ### 5. Schematic Symbol and Footprint If you are designing a PCB (Printed Circuit Board) for this part, use the following pinout logic: ```c Pin 1: Vcon (Voltage Control) or NC (No Connection) Pin 2: GND (Ground) Pin 3: Output (Clock Signal) Pin 4: VDD (Power Supply +3.3V) ```