The **MHO+17FAAD-R** refers to a high-precision, high-frequency **Crystal Oscillator (XO)** typically manufactured by **MtronPTI**. These components are critical in telecommunications and data processing for providing stable clock signals. --- ### 1. Technical Specifications The part number follows a specific nomenclature that defines its electrical characteristics: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Type** | Crystal Oscillator (XO) | Fixed frequency timing source. | | **Output Type** | HCMOS / TTL | High-speed CMOS compatibility. | | **Supply Voltage** | 5.0V (Standard) | The operating voltage for the internal circuitry. | | **Package Style** | 14-pin DIP (Half-size) | A metal "can" package for through-hole mounting. | | **Stability** | ±100 ppm to ±25 ppm | Frequency deviation over temperature (varies by sub-grade). | | **RoHS Status** | Compliant (-R suffix) | Lead-free and environmentally regulated. | --- ### 2. Functional Components An oscillator of this series consists of three primary internal electronic sections: 1. **Quartz Crystal Blank:** The mechanical resonator that vibrates at a specific frequency when an electrical field is applied (Piezoelectric effect). 2. **Oscillator IC:** An integrated circuit that maintains the oscillation and buffers the output signal. 3. **Compensation Network:** Passive components (resistors/capacitors) that ensure the signal remains stable despite fluctuations in temperature or load. --- ### 3. Pin Configuration (Typical 4-Pin Layout) Even though it uses a "14-pin DIP" footprint, usually only 4 pins are functional: | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | N/C or Tri-state | No connection or Output Enable/Disable. | | **Pin 7** | Ground (GND) | Case ground and circuit common. | | **Pin 8** | Output | The generated clock signal (Square wave). | | **Pin 14** | Vcc | Positive supply voltage (+5V). | --- ### 4. Applications The MHO series is designed for industrial-grade reliability: * **Networking:** Synchronizing data packets in routers and switches. * **Embedded Systems:** Providing the master clock for microcontrollers and DSPs. * **Legacy Hardware:** Often used in industrial controllers requiring 5V logic levels. ---