The **MHO+75TAD-R** is a high-performance **Crystal Oscillator** (specifically a Clock Oscillator) manufactured by MtronPTI. It is designed for high-frequency stability and reliability in telecommunications and data processing applications. --- ### 1. Key Technical Specifications The part number follows a specific nomenclature used by MtronPTI to define its electrical characteristics. | Parameter | Specification | Details | | :--- | :--- | :--- | | **Package Type** | Half-size DIP (8-pin) | Thru-hole mounting style | | **Output Type** | HCMOS / TTL | Compatible with standard logic levels | | **Supply Voltage (Vcc)** | +5.0 VDC | Standard operating voltage | | **Frequency Stability** | ±50 ppm | Total stability over temperature and voltage | | **Temperature Range** | 0°C to +70°C | Commercial operating range | | **Duty Cycle** | 40/60% to 45/55% | Symmetric clock pulse | | **RoHS Compliant** | Yes (indicated by -R) | Lead-free construction | --- ### 2. Functional Description As a **Clock Oscillator**, the MHO+75TAD-R serves as the "heartbeat" of an electronic circuit. It combines a quartz crystal blank with oscillation and output circuitry inside a hermetically sealed metal package. * **Frequency Generation:** It provides a fixed-frequency square wave signal. * **Tri-state Function (T):** The "T" in the part number often indicates **Tri-state capability** (Enable/Disable function). This allows the output to be disconnected (high impedance) when a specific pin is pulled low, which is useful for testing or power management. * **Jitter Performance:** Designed for low phase noise and low jitter to ensure data integrity in high-speed digital systems. --- ### 3. Pin Configuration (Standard 8-pin DIP) Though it uses a physical 8-pin layout, only four pins are typically functional: | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | E/D or N/C | Enable/Disable (Tri-state) or No Connect | | **Pin 4** | GND | Circuit and Case Ground | | **Pin 5** | Output | The generated clock signal | | **Pin 8** | +Vcc | +5.0V Power Supply | --- ### 4. Applications Due to its 5V operation and stable HCMOS output, it is commonly used in: * Legacy computing hardware. * Industrial control systems. * Network switches and routers. * Embedded systems requiring a robust thru-hole timing source.