The **M3V23T1CJ-R** is a specific part number belonging to the category of **Voltage Controlled Crystal Oscillators (VCXO)**, typically manufactured by companies like MtronPTI. These components are critical in telecommunications and signal processing for maintaining precise timing. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical characteristics: | Feature | Specification Details | | :--- | :--- | | **Component Type** | VCXO (Voltage Controlled Crystal Oscillator) | | **Package Type** | Surface Mount (SMD) - J-Lead or Ceramic | | **Supply Voltage** | Usually 3.3V (indicated by the "3" or "V" in many naming conventions) | | **Output Type** | HCMOS / TTL Compatible | | **Frequency Stability** | Typically ±25ppm to ±50ppm (standard for this series) | | **Operating Temperature** | Often -40°C to +85°C (Industrial Grade) | --- ### 2. Functional Description As a **VCXO**, this device performs a specialized role compared to a standard fixed-frequency crystal: * **Frequency Pulling:** Unlike a standard oscillator, the output frequency can be slightly adjusted (pulled) by applying a control voltage to a specific pin. * **Phase-Locked Loops (PLL):** It is primarily used as a local oscillator in PLL circuits to synchronize local clock signals with an incoming reference signal. * **Jitter Attenuation:** It helps in smoothing out timing irregularities in data streams. --- ### 3. Pin Configuration (Typical) While you should always consult the specific datasheet for the "CJ-R" revision, the standard 4 or 6-pin layout for this series is as follows: 1. **Voltage Control (V_c):** The input pin that adjusts the frequency. 2. **Tri-state / Enable:** Used to turn the output on or off. 3. **Ground (GND):** System common. 4. **Output:** The high-speed clock signal. 5. **No Connect (NC):** Or complementary output. 6. **Supply Voltage (Vcc):** DC Power input. --- ### 4. Applications The M3V series is commonly found in: * **Networking:** SONET/SDH, 10Gb Ethernet. * **Broadcasting:** Video clock recovery. * **Instrumentation:** Precision frequency synthesizers.