The **M3V64V1CJ-R** is a high-performance, surface-mount **Voltage Controlled Crystal Oscillator (VCXO)** manufactured by NDK (Nihon Dempa Kogyo Co., Ltd.). It is designed primarily for applications requiring high-frequency stability and low phase jitter. --- ### 1. Key Technical Specifications The following table highlights the primary electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Component Type** | VCXO (Voltage Controlled Crystal Oscillator) | | **Frequency Range** | Typically 1.5 MHz to 80 MHz (Series dependent) | | **Supply Voltage ($V_{CC}$)** | +3.3V DC (Common for 'V' series) | | **Output Type** | CMOS / HCMOS | | **Package Size** | 7.0 x 5.0 mm (6-pad SMD) | | **Frequency Stability** | ±50 ppm or ±100 ppm (Standard) | | **Operating Temp** | -40°C to +85°C | | **Control Voltage ($V_{cont}$)** | +1.65V ± 1.5V | --- ### 2. Functional Characteristics The "M3V" series focuses on high-precision timing for telecommunications and digital video systems. * **Frequency Control:** Unlike standard oscillators, the frequency of this part can be adjusted (pulled) by changing the input voltage on the control pin. This is essential for Phase Locked Loops (PLLs). * **Low Jitter:** It is engineered to minimize "timing noise," ensuring data packets in high-speed circuits are synchronized correctly. * **Tri-state Function:** Includes an Enable/Disable function (Pad 2) which allows the output to be set to a high-impedance state, reducing power consumption when the clock is not needed. --- ### 3. Pin Configuration (Typical 6-Pad) The M3V64V1CJ-R usually follows the standard 7050 package footprint: | Pin Number | Name | Function | | :--- | :--- | :--- | | **1** | $V_{cont}$ | Control Voltage (Frequency Adjustment) | | **2** | E/D | Enable / Disable (Tri-state) | | **3** | GND | Ground | | **4** | OUT | RF Output (Clock Signal) | | **5** | NC | No Connection (or Complementary Output) | | **6** | $V_{CC}$ | Power Supply | --- ### 4. Common Applications * **Networking:** Ethernet switches, routers, and base stations. * **Broadcasting:** Digital video equipment and professional audio interfaces. * **Clock Recovery:** Used in circuits that need to synchronize a local clock to an incoming data stream.