The **MHO+25FCG-R** is a precision frequency control component, specifically a **Quartz Crystal Oscillator**. This part is designed for high-reliability timing applications, often found in industrial, telecommunications, and high-end consumer electronics. Below is a detailed breakdown of its electronic characteristics and specifications. --- ### 1. General Specifications The part number follows a standard nomenclature used by manufacturers (typically associated with brands like **MtronPTI** or similar timing solution providers). | Feature | Description | | :--- | :--- | | **Component Type** | Fixed Frequency Crystal Oscillator (XO) | | **Package Style** | 14-pin DIP (Dual In-line Package) - Half Size / Full Size variant | | **Output Type** | CMOS / TTL Compatible | | **RoHS Status** | Compliant (indicated by the **-R** suffix) | --- ### 2. Key Electronic Parameters While exact frequencies are custom-ordered (the "MHO" series covers a wide range), the technical architecture usually includes: * **Supply Voltage ($V_{DD}$):** Typically 5.0V (Standard for the MHO series, though 3.3V variants exist). * **Frequency Stability:** Usually rated at $\pm$25ppm to $\pm$100ppm depending on the specific grade (the "25" often denotes a stability or temperature characteristic). * **Operating Temperature:** Generally ranges from $-40^{\circ}\text{C}$ to $+85^{\circ}\text{C}$ (Industrial Grade). * **Symmetry/Duty Cycle:** 40/60% to 45/55% at 50% $V_{DD}$. * **Rise/Fall Time:** Fast switching times (typically < 10ns) to ensure signal integrity at higher frequencies. --- ### 3. Pin Configuration (Typical 14-Pin DIP) Even though it is a "14-pin" package, many pins are internally not connected (N.C.) to provide physical stability. | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | N.C. or Tri-state | No connection or Output Enable/Disable | | **7** | GND | Ground connection | | **8** | Output | The generated clock signal | | **14** | $V_{DD}$ | Positive Power Supply | --- ### 4. Part Number Breakdown (Deconstruction) * **MHO:** Series identifier (Metal Hermetic Oscillator). * **2:** Usually indicates the voltage or package size variant. * **5:** Stability code (often representing $\pm$50ppm or $\pm$25ppm). * **F:** Frequency code or specialized Temperature range. * **CG:** Output type (CMOS/TTL Compatible). * **-R:** RoHS Compliant (Lead-free). --- ### 5. Application Areas These oscillators are used where a stable "heartbeat" is required for digital logic: * **Networking:** Routers, Switches, and Hubs. * **Embedded Systems:** Microcontroller clock sources. * **Industrial Control:** PLC (Programmable Logic Controllers) and automation hardware. * **Test & Measurement:** Oscilloscopes and signal generators.