The **M3E73XPX-R** is a specialized electronic component, typically identified as a high-performance **Oscillator** (often a Temperature Compensated Crystal Oscillator or TCXO / VCTCXO) manufactured by companies like MtronPTI. These parts are designed for precision timing in communication and aerospace hardware. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical characteristics: | Parameter | Typical Specification | Description | | :--- | :--- | :--- | | **Component Type** | XO / TCXO | Crystal Oscillator | | **Supply Voltage** | 3.3V (Typical) | Defined by the '3' in the prefix | | **Output Type** | CMOS / HCMOS | Square wave output for digital logic | | **Stability** | ±1.0ppm to ±2.5ppm | Frequency stability over temperature | | **Operating Temp** | -40°C to +85°C | Industrial grade thermal range | | **Package Size** | 5x7 mm or 3.2x5 mm | Surface Mount Device (SMD) | --- ### 2. Key Electronic Features * **Low Phase Noise:** Designed to minimize jitter, ensuring that high-speed data transmissions remain synchronized without errors. * **Tri-state Functionality:** Pin 1 often supports an enable/disable function, allowing the output to go into a high-impedance state to save power. * **Frequency Pulling:** If it is a VCTCXO variant, it allows for fine-tuning the output frequency via an external control voltage. * **RoHS Compliant:** The "-R" suffix usually denotes compliance with "Restriction of Hazardous Substances" (Lead-free). --- ### 3. Pin Configuration (Typical 4-6 Pin SMD) Most M3E series oscillators follow a standard footprint: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | E/D or Vc | Enable/Disable or Control Voltage | | **2** | NC or GND | No connection or Case Ground | | **3** | Case Ground | Common Ground | | **4** | Output | The generated frequency signal | | **5** | NC | No connection (on 6-pin models) | | **6** | Vcc | Supply Voltage Input | --- ### 4. Common Applications Due to its high stability, the M3E73XPX-R is commonly found in: 1. **Telecommunications:** Base stations and small cells (5G/LTE). 2. **Networking:** High-speed routers and switches. 3. **GPS/Navigation:** Systems requiring precise time-stamping. 4. **Test Equipment:** Oscilloscopes and signal generators.