The **MHO363TAD-R** is a high-performance **Crystal Oscillator (XO)** manufactured by MtronPTI. It is specifically designed as a surface-mount device (SMD) for applications requiring high stability and precision timing. --- ### ## Technical Specifications Below are the primary electronic characteristics of the MHO363TAD-R: | Parameter | Specification | | :--- | :--- | | **Output Frequency** | Typically ranges from 1.5 MHz to 80.0 MHz | | **Supply Voltage (Vcc)** | +3.3 VDC ± 10% | | **Output Type** | HCMOS / TTL Compatible | | **Frequency Stability** | ±50 ppm (standard for this series) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Package Type** | 5x7 mm Ceramic SMD (4 pads) | | **Duty Cycle** | 45% / 55% | --- ### ### Key Components and Features 1. **Quartz Crystal Resonator:** The core of the part is a high-grade quartz crystal blank that determines the fundamental frequency through its physical dimensions and cut angle. 2. **Integrated Circuit (IC):** The internal ASIC includes the oscillation circuit, frequency dividers (if applicable), and an output buffer to drive the signal into the rest of the PCB. 3. **Tri-State Function (Pin 1):** This part features an "Enable/Disable" function. When Pin 1 is set to logic low, the output goes into a high-impedance state, allowing for power saving and bus sharing. 4. **Hermetic Sealing:** The ceramic package is seam-welded to protect the internal quartz and electronics from moisture and atmospheric contaminants, ensuring long-term frequency aging stability. --- ### ### Pin Configuration The device uses a standard 4-pad layout: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | Tri-state / E/D | Logic High: Output Active; Logic Low: High Impedance | | **2** | Ground | Case and Circuit Ground | | **3** | Output | HCMOS/TTL Signal Output | | **4** | +Vcc | DC Power Supply Input | --- ### ### Applications Due to its robust industrial temperature range and HCMOS output, the MHO363TAD-R is commonly used in: * **Networking Hardware:** Routers, switches, and gateways. * **Industrial Controllers:** PLC systems and embedded computing. * **Communication Systems:** Wireless base stations and RF modules.