The **MHO+54TAG-R** belongs to a specific category of timing components, typically classified as a **TCXO (Temperature Compensated Crystal Oscillator)**. These parts are designed to provide a highly stable clock signal across varying environmental conditions, making them essential for telecommunications and precision instrumentation. --- ### 1. Technical Specifications Overview The part number follows a specific nomenclature used by manufacturers (frequently associated with companies like **MtronPTI**). Below is a breakdown of the typical characteristics of this series: | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | Temperature Compensated Crystal Oscillator (TCXO) | | **Output Type** | CMOS / HCMOS | | **Supply Voltage** | 3.3V or 5.0V (Series dependent) | | **Frequency Stability** | ±1.0ppm to ±5.0ppm | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **Package Style** | 14-pin DIP (Through-Hole) or SMD equivalent | | **RoHS Status** | Compliant (Indicated by the '-R' suffix) | --- ### 2. Functional Description of Internal Parts The MHO+54TAG-R is an integrated assembly consisting of several key electronic elements: 1. **Quartz Crystal Blank:** The heart of the unit that vibrates at a specific resonant frequency. 2. **Compensation Network:** A specialized circuit (often using thermistors) that adjusts the capacitance to counteract frequency "drift" caused by temperature changes. 3. **Oscillator IC:** An integrated circuit that maintains the oscillation and provides the output buffer. 4. **Voltage Regulator:** Internal circuitry to ensure that small fluctuations in input voltage do not affect the frequency timing. --- ### 3. Pinout Configuration For the standard 14-pin DIP footprint (often used in the MHO series), the pin functions are usually as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | **Pin 1** | N/C or V_control | No connection or Voltage Control for tuning | | **Pin 7** | GND | Case and Circuit Ground | | **Pin 8** | Output | The generated clock signal (Square wave) | | **Pin 14** | Vcc | Positive Power Supply | --- ### 4. Common Applications Due to its high stability and through-hole "MHO" (Metal Hermetic Oscillator) design, it is commonly found in: * **Base Stations:** Providing timing for cellular networks. * **Test & Measurement:** Internal clocks for oscilloscopes or frequency counters. * **Legacy Systems:** Industrial controllers that require high-reliability timing in 14-pin DIP formats.