The **MHO317FAD-R** is a specific surface-mount electronic component, typically categorized as a **Crystal Oscillator**. These components are essential for providing a stable clock signal in digital circuits, telecommunications, and consumer electronics. Below is a detailed breakdown of its specifications, functionality, and characteristics. --- ### 1. General Specifications Based on the standard nomenclature for the MHO series (typically manufactured by companies like MtronPTI or similar frequency control specialists), the technical details are as follows: | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | XO (Crystal Oscillator) | | **Package Type** | SMD (Surface Mount Device) | | **Package Size** | 14-pin DIP compatible or 5x7mm ceramic | | **Output Type** | HCMOS / TTL | | **Supply Voltage ($V_{dd}$)** | 3.3V or 5.0V (Standard) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **RoHS Status** | Compliant (indicated by the "-R" suffix) | --- ### 2. Key Features and Functions * **Frequency Stability:** This part is designed to maintain a precise frequency despite changes in temperature or voltage. * **Tri-state Functionality:** Many models in the MHO series feature an "Enable/Disable" pin. This allows the output to be turned off (placed in a high-impedance state) to save power without powering down the entire system. * **Low Phase Jitter:** Crucial for high-speed data transmission to ensure timing accuracy. * **Hermetically Sealed:** The internal quartz crystal is sealed in a metal or ceramic package to protect it from humidity and atmospheric contaminants. --- ### 3. Pin Configuration (Typical 4-Pin/6-Pin SMD) While physical layouts vary by specific footprint, the standard pinout for these oscillators usually follows this logic: | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | E/D or NC | Enable/Disable (Tri-state) or No Connection | | 2 | GND | Ground connection | | 3 | Output | The generated clock signal (Square wave) | | 4 | $V_{dd}$ | DC Power Supply | --- ### 4. Application Areas The MHO317FAD-R is commonly integrated into the following systems: 1. **Networking:** Routers, switches, and modems for timing data packets. 2. **Embedded Systems:** Microcontrollers (MCUs) and FPGAs that require an external clock source. 3. **Industrial Controls:** Automation equipment where timing must remain stable in harsh temperatures. 4. **Audio/Video:** DACs (Digital-to-Analog Converters) and professional video processing gear. --- ### 5. Part Number Breakdown * **MHO:** Series identifier (Metal Hermetic Oscillator style). * **317:** Specific frequency stability and voltage code (often 100ppm or 50ppm). * **F:** Frequency range or specialized stability indicator. * **AD:** Package/Temperature code. * **-R:** Indicates **RoHS Compliance** (Lead-free).