The **MHO+36TGD-R** is a specific type of **Crystal Oscillator (XO)**. Based on the naming convention (commonly associated with manufacturers like MtronPTI), this component is an active timing element used to provide a precise clock signal for digital circuits. --- ### 1. General Specifications The part number can be broken down into specific technical attributes: | Feature | Specification (Typical) | | :--- | :--- | | **Component Type** | Crystal Oscillator (XO) | | **Package Type** | Through-hole (14-pin or 8-pin DIP compatible) | | **Operating Voltage** | Usually 5.0V or 3.3V (Model dependent) | | **Output Type** | HCMOS / TTL | | **Frequency Stability** | Typically ±25ppm to ±100ppm | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | --- ### 2. Key Electronic Characteristics #### A. Active Oscillation Unlike a passive crystal (XTAL) which requires an external load capacitor and an oscillation circuit inside a microcontroller, the **MHO series is an active oscillator**. It contains its own internal transistor circuit and only needs power ($V_{cc}$) and Ground ($GND$) to output a square wave. #### B. Output Logic (HCMOS/TTL) The "TGD" suffix often refers to the output logic compatibility. These parts are designed to drive multiple gates in high-speed CMOS or standard TTL logic circuits without signal degradation. #### C. Full-Size / Half-Size DIP The "MHO" series typically utilizes a metal "DIP-14" or "DIP-8" footprint. This provides: * **EMI Shielding:** The metal casing is grounded to reduce electromagnetic interference. * **Mechanical Durability:** Through-hole mounting is robust against physical vibration. --- ### 3. Pin Configuration (Typical DIP-14) For a standard MHO-style oscillator, the pins are usually assigned as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | NC or Tri-State | No connection or Output Enable/Disable | | **7** | GND | Ground / Case Connection | | **8** | Output | Clock Signal Output | | **14** | $V_{cc}$ | Positive Power Supply | --- ### 4. Application Use Cases * **Microprocessor Clocks:** Providing the base heartbeat for CPUs and MCUs. * **Telecommunications:** Timing for data transmission interfaces. * **Industrial Control:** High-reliability timing in environments with high electrical noise. * **Legacy Hardware:** Often used in older computer motherboards or specialized radio equipment.