The **M3V25T2CJ-R** is a high-performance, automotive-grade Crystal Oscillator (SPXO) manufactured by **Kyocera AVX**. It is part of the MC Series, specifically designed for applications requiring high stability and high-temperature resilience. --- ### 1. Key Technical Specifications The technical characteristics of this component define its behavior in an electronic circuit: | Feature | Specification | | :--- | :--- | | **Output Frequency** | 25.0000 MHz | | **Supply Voltage (Vcc)** | 3.3V (Typical) | | **Frequency Stability** | ±50 ppm (standard for this series) | | **Operating Temperature** | -40°C to +125°C | | **Output Type** | CMOS | | **Package Size** | 3.2mm x 2.5mm (SMD) | | **Load Capacitance** | 15 pF | | **Automotive Grade** | AEC-Q100 / AEC-Q200 Qualified | --- ### 2. Functional Components The "M3V" series integrates several internal electronic parts into a single ceramic package: * **AT-Cut Quartz Crystal:** The core resonating element that provides the 25 MHz frequency reference. * **Oscillator IC:** An internal integrated circuit that provides the necessary gain to maintain oscillation and buffers the output signal. * **Tri-state Function (Pin 1):** This allows the output to be disabled (high impedance) to save power when the clock signal is not needed. * **Bypass Capacitor Requirement:** While not inside the chip, the datasheet requires a **0.01µF capacitor** placed as close as possible between the Vcc and Ground pins to filter high-frequency noise. --- ### 3. Pin Configuration The device uses a standard 4-pad layout for surface mount technology (SMD): | Pin Number | Name | Function | | :--- | :--- | :--- | | **1** | INH / Standby | High or Open = Output Active; Low = High Impedance | | **2** | GND | Ground Connection | | **3** | Output | 25 MHz CMOS Clock Signal | | **4** | Vcc | Power Supply (+3.3V) | --- ### 4. Application Areas Due to its AEC-Q200 qualification and wide temperature range, it is primarily used in: 1. **Automotive Systems:** ADAS (Advanced Driver Assistance Systems), infotainment, and engine control units. 2. **Industrial Automation:** High-reliability sensors and controllers. 3. **Networking:** High-speed Ethernet and communication interfaces requiring a stable clock source. --- ### 5. Ordering Code Breakdown * **M3V:** Series Name (3.2 x 2.5mm Size) * **25:** Frequency (25 MHz) * **T:** Supply Voltage (3.3V) * **2:** Stability (±50 ppm) * **C:** Operating Temp (-40 to +125°C) * **J:** Duty Cycle (45% to 55%) * **R:** Tape & Reel Packaging