The **M3V28T1J-R** is a specialized electronic component, typically categorized as a **Voltage Controlled Crystal Oscillator (VCXO)**. These components are critical for frequency control and timing in high-speed telecommunications and data processing hardware. --- ## 1. Technical Specifications Below is a summary of the core technical parameters generally associated with this part series: | Parameter | Typical Value / Description | | :--- | :--- | | **Component Type** | Voltage Controlled Crystal Oscillator (VCXO) | | **Package Type** | Surface Mount Device (SMD) | | **Output Type** | LVPECL (Low-Voltage Positive Emitter-Coupled Logic) | | **Supply Voltage** | 3.3V (indicated by the '3' or 'V' prefix in many naming conventions) | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | | **Stability** | ±20ppm to ±50ppm (depending on specific sub-variant) | --- ## 2. Key Electronic Features ### A. Frequency Control (Voltage Tuning) Unlike a standard crystal oscillator that stays at a fixed frequency, the **VCXO** allows the output frequency to be adjusted (tuned) by applying an external control voltage to a specific pin. This is essential for: * Phase-Locked Loops (PLLs). * Synchronizing clock signals between different circuit boards. ### B. LVPECL Output The "J" or "T" designations often refer to the differential output logic. **LVPECL** is used because: * It provides high-speed switching. * It has excellent noise immunity. * It is ideal for high-frequency jitter-sensitive applications (like 10GbE or SONET). ### C. Jitter Performance The M3V series is designed for **low phase jitter**. In electronic timing, jitter is the deviation from the ideal timing of an event. Low jitter ensures that data transmitted at high speeds is sampled correctly at the receiving end without errors. --- ## 3. Typical Applications This component is commonly found in the following electronic environments: 1. **Telecommunications:** Base stations and optical networking equipment. 2. **Broadcasting:** Video processing equipment where precise clock synchronization is required. 3. **Data Centers:** High-speed switches and routers. 4. **Test & Measurement:** Frequency synthesizers and signal generators. --- ## 4. Ordering Information Breakdown While internal manufacturer codes vary, the suffix **-R** typically denotes the packaging method: * **-R:** Tape & Reel (used for automated pick-and-place assembly lines).