The **MHO+22TAAD-R** is a specific part number belonging to the **MHO Series** of high-stability quartz crystal oscillators manufactured by **MtronPTI**. These components are primarily used in telecommunications and data processing for precise clocking and timing applications. --- ### 1. Key Technical Specifications Based on the standard nomenclature for the MHO series, here is the breakdown of the electronic characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | Fixed frequency timing source. | | **Package Style** | 14-pin DIP (Full Size) | Through-hole metal canister for superior EMI shielding. | | **Supply Voltage** | 5.0V DC | Standard operating voltage for TTL/CMOS logic. | | **Output Logic** | HCMOS / TTL | Compatible with high-speed CMOS and legacy TTL circuits. | | **Frequency Range** | 1.0 MHz to 155.52 MHz | (The exact frequency is usually stamped on the physical part). | | **Stability** | ±100 ppm to ±25 ppm | Varies by specific dash suffix; typically high stability. | | **Operating Temp** | 0°C to +70°C (Standard) | Commercial grade temperature range. | --- ### 2. Component Pinout (Standard 14-pin DIP) Though the package has 14 pins, usually only 4 pins are electrically connected to the internal circuit: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | N/C or Tri-state | No connection or Output Enable/Disable. | | **7** | Case Ground | Connected to the metal housing for noise reduction. | | **8** | Output | The generated clock frequency signal. | | **14** | Vcc (+5V) | Power supply input. | --- ### 3. Features and Applications * **Hermetically Sealed:** The metal package is vacuum-sealed or filled with nitrogen to prevent quartz aging and environmental interference. * **Low Jitter:** Designed for synchronous data transmission where timing precision is critical. * **Common Uses:** * Network Switches and Routers. * Industrial Control Systems. * Legacy Computing Motherboards. * Microprocessor Clocking. --- ### 4. Part Number Decoder While "MHO+22TAAD-R" is a specific build, the suffix breakdown generally follows this logic: * **MHO:** Series name (5.0V Full Size DIP). * **+:** Denotes RoHS compliance (Lead-free). * **22:** Frequency stability code (often denotes ±50ppm or ±25ppm). * **T:** Temperature range (Standard Commercial). * **A:** Duty Cycle (40/60% or 45/55%). * **-R:** RoHS Compliant / Tape and Reel (if applicable).