## Technical Overview of M3V13V2AJ-R The **M3V13V2AJ-R** is a specific model of a **Voltage Controlled Crystal Oscillator (VCXO)**, typically manufactured by suppliers like Jauch Quartz. These components are essential in telecommunications and data processing for precise frequency control. --- ### 1. Component Identification This part belongs to the **VCXO** family. Unlike a standard crystal oscillator, a VCXO allows the output frequency to be adjusted (steered) by an external control voltage. | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | Voltage Controlled Crystal Oscillator (VCXO) | | **Package Size** | 3.2 x 2.5 mm (SMD) | | **Supply Voltage (Vdd)** | 3.3V | | **Output Type** | CMOS / HCMOS | | **Operating Temp Range** | -40°C to +85°C (Industrial Grade) | --- ### 2. Functional Pinout The device usually features 4 or 6 pads depending on the specific package variation. The standard configuration for this series is as follows: 1. **Pin 1 (Vcon):** Voltage Control input. Applying a voltage here changes the frequency. 2. **Pin 2 (E/D or NC):** Enable/Disable (Tristate) or No Connection. 3. **Pin 3 (GND):** Ground connection. 4. **Pin 4 (Output):** The generated frequency signal. 5. **Pin 5 (NC):** No internal connection. 6. **Pin 6 (Vdd):** Power supply (3.3V). --- ### 3. Key Electronic Characteristics * **Frequency Pulling Range:** This indicates how much the frequency can be shifted. For the M3V series, this is usually ±50ppm to ±100ppm (parts per million). * **Phase Jitter:** These parts are designed for low jitter, making them suitable for high-speed clocking in networking equipment. * **Tri-state Function:** Allows the output to be placed in a high-impedance state, effectively "disconnecting" it from the bus for testing or power-saving purposes. --- ### 4. Common Applications Due to its ability to fine-tune frequency via voltage, the M3V13V2AJ-R is used in: * **Phase-Locked Loops (PLL):** Synchronizing two clock signals. * **ADSL/VDSL Modems:** Managing data transmission timing. * **Set-top Boxes:** Synchronizing audio/video streams. * **Wireless Infrastructure:** Base stations and cellular hardware. --- ### 5. Part Number Breakdown (Example Logic) While coding varies by manufacturer, the M3V series typically breaks down as: * **M3V:** Series identifier (VCXO 3.2x2.5mm). * **3:** 3.3V Supply voltage. * **13:** Frequency stability code. * **V2:** Version or specific Pulling range. * **AJ:** Temperature range / Output logic. * **-R:** Tape & Reel packaging.