Based on the part number provided, the **M5R15XQ-R** is a high-performance, programmable crystal oscillator (SPXO) typically manufactured by companies like **MtronPTI**. These components are critical in electronics for generating a precise clock signal used to synchronize data and operations within a circuit. --- ### 1. Key Technical Specifications Below is a breakdown of the typical electronic characteristics for this series: | Parameter | Specification (Typical) | | :--- | :--- | | **Output Type** | CMOS / HCMOS | | **Supply Voltage (Vdd)** | 1.5V (indicated by the '15' in the code) | | **Frequency Range** | 1.000 MHz to 170.000 MHz | | **Package Size** | 3.2mm x 5.0mm (Surface Mount) | | **Operating Temperature** | -40°C to +85°C (Industry Standard) | | **Stability** | ±25ppm to ±100ppm | | **RoHS Status** | Compliant (Lead-free) | --- ### 2. Part Number Breakdown The nomenclature of these oscillators follows a specific logic: * **M5R**: Series designation (often indicating the 3.2x5.0mm ceramic package size). * **15**: Indicates the Operating Voltage (1.5 Volts). * **X**: Usually denotes the Stability/Temperature grade (e.g., ±50ppm over -40/+85°C). * **Q**: Refers to the Duty Cycle or Enable/Disable function (Tristate). * **R**: Indicates the packaging format (Tape & Reel). --- ### 3. Electronic Functionality This part serves several roles in a PCB design: 1. **Clock Generation**: It provides the "heartbeat" for microprocessors, FPGAs, and DSPs. 2. **Tristate Capability**: The "Q" designation often implies an **Output Enable (OE)** pin. When this pin is pulled low, the output goes into a high-impedance state, reducing power consumption. 3. **Low Voltage Operation**: Running at 1.5V makes it ideal for modern, low-power mobile devices and energy-efficient computing systems. --- ### 4. Implementation Example In a standard circuit, the oscillator requires a bypass capacitor to filter noise from the power supply. ```cpp // Schematic Connection Guide: Pin 1: OE (Enable/Disable) -> Connect to Vdd for active output Pin 2: GND -> Connect to Ground Pin 3: Output -> Connect to Clock Input of MCU/SoC Pin 4: Vdd -> Connect to 1.5V DC (Add 0.1uF Capacitor to GND) ```