The **VCXO2EV-B24T3** is a specific type of Voltage-Controlled Crystal Oscillator (VCXO). These components are critical in telecommunications and data processing for frequency tuning and synchronization. --- ## Technical Specifications Overview Below is a breakdown of the typical electronic characteristics for this series: | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | VCXO (Voltage-Controlled Crystal Oscillator) | | **Nominal Frequency** | 24.576 MHz (Commonly used in Audio/Video) | | **Control Voltage Range** | 0.5V to 2.5V (Standard) | | **Supply Voltage (Vcc)** | 3.3V DC | | **Output Type** | CMOS / HCMOS | | **Package Style** | SMD (Surface Mount Device) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | --- ## Key Functional Components ### 1. The Quartz Crystal The heart of the device is a precision-cut quartz crystal. It provides the reference frequency. In the case of the "B24" designation, it often refers to a base frequency around **24.000 MHz** or **24.576 MHz**. ### 2. Varactor Diode This is the "Voltage Control" part. A varactor diode acts as a variable capacitor. When the input control voltage changes, the capacitance changes, which slightly "pulls" the crystal's oscillation frequency higher or lower. ### 3. Integrated Circuit (Oscillator Circuit) The internal IC maintains the oscillation by providing the necessary gain and feedback. It also handles the output buffering to ensure the signal is a clean square wave (CMOS). --- ## Pin Configuration (Typical 6-Pad SMD) | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | **Vc** | Voltage Control Input (Adjusts frequency) | | 2 | **E/D or NC** | Enable/Disable (Tri-state) or No Connect | | 3 | **GND** | Ground | | 4 | **Output** | RF Frequency Output | | 5 | **NC** | No Connect | | 6 | **Vcc** | Supply Voltage (Power) | --- ## Applications * **Phase-Locked Loops (PLL):** Used to lock onto an external reference clock. * **Jitter Attenuation:** Smoothing out timing instabilities in digital signals. * **Audio/Video Equipment:** The 24.576 MHz frequency is a multiple of 48kHz, making it ideal for professional digital audio clocking.