The **MV28T2AG-R** is a high-performance, industrial-grade **Crystal Oscillator (XO)**. It is specifically designed for applications requiring high stability and precision timing, often found in telecommunications, networking, and high-speed data transmission systems. --- ### 1. Technical Specifications Below are the primary electronic characteristics typical for this series (specifically from manufacturers like Microchip/Vectron): | Feature | Specification | | :--- | :--- | | **Component Type** | Voltage Controlled / Temperature Compensated Crystal Oscillator | | **Frequency Range** | Typically 10 MHz to 52 MHz (Commonly 20MHz/40MHz) | | **Output Type** | CMOS / Clipped Sine Wave | | **Supply Voltage (Vcc)** | 3.3V (standard) or 5.0V | | **Package Size** | 5.0 x 3.2 mm (Surface Mount Device) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Frequency Stability** | ±0.5 ppm to ±2.5 ppm | --- ### 2. Core Electronic Components The MV28T2AG-R consists of several internal sub-systems integrated into a single ceramic package: * **Quartz Crystal Blank:** The heart of the component, precision-cut to vibrate at a specific resonant frequency. * **Oscillator IC:** An Application-Specific Integrated Circuit (ASIC) that maintains the oscillation and handles the output buffering. * **Temperature Compensation Circuit:** Uses a thermistor-based network or digital compensation to adjust the frequency as environmental temperatures change, ensuring high stability. * **Varactor Diode (for VCXO variants):** Allows for slight tuning of the frequency via an external control voltage. --- ### 3. Pin Configuration (Typical) Most oscillators in this 5x3.2mm footprint follow a standard 4-pin or 6-pin layout: 1. **Pin 1 (VC / NC):** Voltage Control (for tuning) or No Connection. 2. **Pin 2 (GND):** Case ground and circuit supply return. 3. **Pin 3 (Output):** The high-frequency clock signal output. 4. **Pin 4 (Vcc):** Positive power supply input. --- ### 4. Key Applications * **Base Stations:** Used for synchronization in 4G/5G small cells. * **GPS/GNSS:** Providing a stable reference clock for positioning modules. * **Ethernet Switches:** Handling timing for high-speed packet switching. * **Wi-Fi 6/7 Equipment:** Ensuring low jitter in wireless data transmission.