The **MHO+16FGG-R** belongs to a specific category of high-performance quartz crystal oscillators. Below is a detailed technical breakdown of its electronic characteristics and construction. ### 1. General Overview The MHO series (often manufactured by companies like MtronPTI) consists of **TCXO (Temperature Compensated Crystal Oscillators)** or high-stability clock oscillators housed in a 14-pin DIP (Dual In-line Package) compatible metal enclosure. --- ### 2. Technical Specifications The suffix and prefix parts of the model number define its electrical behavior: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Type** | Crystal Oscillator | Provides a stable clock frequency. | | **Package** | 14-Pin DIP (Full Size) | Metal can, hermetically sealed for EMI shielding. | | **Output Type** | HCMOS/TTL | Compatible with standard digital logic circuits. | | **Voltage** | 5.0V (Standard) | Typically operates on a 5V DC supply. | | **Stability** | ±100ppm to ±25ppm | Varies based on specific sub-grading. | | **RoHS Status** | Compliant (-R) | The "-R" suffix indicates lead-free/RoHS compliance. | --- ### 3. Component Breakdown #### A. The Quartz Crystal The heart of the device is a precision-cut quartz wafer. When an electric field is applied, it vibrates at a specific resonant frequency (the "16" in the part number often refers to **16.000 MHz**). #### B. The Integrated Circuit (IC) Inside the metal can, there is a small CMOS IC that: * Maintains the oscillation of the crystal. * Buffers the signal to ensure it can drive other components (fan-out). * Regulates the output waveform to ensure clean square waves. #### C. The Metal Housing * **EMI Shielding:** The grounded metal case protects the internal clock signal from external electromagnetic interference and prevents the oscillator from radiating noise to other parts of the PCB. * **Hermetic Seal:** The internals are sealed in an inert gas (usually Nitrogen) to prevent oxidation and aging of the quartz. --- ### 4. Pin Configuration (Typical 14-Pin DIP) While the package has 14 pin positions, usually only 4 pins are physically present: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | NC or Tri-State | No connection or Output Enable/Disable. | | **7** | GND | Circuit Ground and Case Ground. | | **8** | Output | The generated clock signal (Square wave). | | **14** | Vcc | Positive Power Supply (+5V). | --- ### 5. Common Applications * **Microprocessors:** Providing the "heartbeat" for older industrial CPUs. * **Communication Equipment:** Synchronizing data transmission. * **Test & Measurement:** Stable time-bases for counters and oscilloscopes.