The **MHO+56FFG-R** refers to a high-precision, high-stability **Crystal Oscillator**, typically falling under the **OCXO** (Oven Controlled Crystal Oscillator) or high-end **TCXO** categories depending on the specific series iteration. These components are critical for frequency control in telecommunications and timing applications. --- ### 1. Component Specification Overview | Feature | Description | | :--- | :--- | | **Component Type** | Quartz Crystal Oscillator | | **Series** | MHO Series (Metal Hermetic Package) | | **Output Type** | CMOS / HCMOS / TTL Compatible | | **Frequency Stability** | High (often in the range of ±25ppm to ±50ppm) | | **Mounting Type** | Through-hole (typically 14-pin or 4-pin DIL/DIP compatible) | | **RoHS Status** | Compliant (indicated by the **-R** suffix) | --- ### 2. Breakdown of the Part Number * **MHO**: Represents the manufacturer's series designation for a Metal Hermetic package Oscillator. This metal casing provides excellent EMI shielding. * **+**: Usually indicates a specific voltage tolerance or a lead-free transition marker in older catalogs. * **5**: Typically denotes the supply voltage (e.g., **5.0V** DC operation). * **6**: Often represents the frequency stability code (check manufacturer datasheet for specific ppm mapping). * **FFG**: These characters are specific to the internal crystal cut, operating temperature range (e.g., -40°C to +85°C), and output symmetry. * **-R**: Strictly indicates **RoHS Compliance** (Restriction of Hazardous Substances). --- ### 3. Key Electronic Functions 1. **Frequency Generation**: Uses a vibrating quartz crystal to create a precise square-wave clock signal. 2. **Clock Distribution**: Provides the "heartbeat" for microprocessors, FPGAs, and digital signal processors (DSPs). 3. **EMI Shielding**: The "Metal" part of the MHO series means the electronic components are housed in a grounded metal can to prevent radio frequency interference (RFI). 4. **Signal Integrity**: Designed to maintain low "Jitter" (timing variations), which is essential for high-speed data transmission. --- ### 4. Common Pin Configuration (14-Pin DIP Style) Even though it fits in a 14-pin socket, most oscillators only use 4 pins: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | NC / E/D | No Connect or Output Enable/Disable | | **7** | GND | Circuit Ground | | **8** | Output | The Clock Signal Output | | **14** | Vcc | Supply Voltage (+5V) | ---