The **MHO+23FGD-R** is a specific part number typically associated with **Quartz Crystal Oscillators**, often manufactured by companies like *Hosonic Electronic* or specialized timing component vendors. Below is a detailed breakdown of the electronic specifications and characteristics of this component. --- ### 1. General Specifications The "MHO" series generally refers to high-stability, metal-can or ceramic SMD (Surface Mount Device) oscillators. The specific suffix "23FGD-R" encodes information about its frequency, voltage, and tolerance. | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | Crystal Oscillator (SPXO) | | **Package Type** | 5.0 x 3.2 mm (or 7.0 x 5.0 mm depending on series) | | **Output Type** | CMOS / TTL Compatible | | **Supply Voltage (Vdd)** | Usually 3.3V or 5.0V | | **Frequency Stability** | ±25ppm to ±50ppm | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | | **RoHS Status** | Compliant (indicated by -R) | --- ### 2. Part Number Breakdown While manufacturer codes vary slightly, the string usually follows this logic: * **MHO:** Series identifier (Metal-can or High-Output Oscillator). * **23:** Often represents the physical dimensions (e.g., 3.2x2.5mm or 5x3.2mm). * **F:** Frequency stability code (often ±50ppm). * **G:** Temperature range code (usually Industrial -40 to +85°C). * **D:** Duty Cycle / Voltage code (e.g., 45/55% duty cycle at 3.3V). * **-R:** RoHS compliant / Tape & Reel packaging. --- ### 3. Pin Configuration For standard SMD oscillators in this class, the pinout is typically as follows: | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | OE or NC | Output Enable (High = Active) or No Connection | | **2** | GND | Ground connection | | **3** | Output | The frequency signal output | | **4** | Vdd | Power Supply (+) | --- ### 4. Key Application Use Cases Because this part is an "active" oscillator (it contains the crystal and the oscillation circuit in one package), it is used to provide a steady clock signal to: * **Microcontrollers (MCUs):** Providing the base heartbeat for processing. * **Ethernet Controllers:** Timing for data transmission. * **FPGA/ASIC:** High-speed logic synchronization. * **Embedded Systems:** Industrial automation controllers. --- ### 5. Circuit Integration Example To use this part, you generally need a decoupling capacitor (0.1µF) placed as close as possible to the Vdd pin to filter power supply noise. ```c // Example Connection Schematic Concept: [Vcc 3.3V] ----+---- [Pin 4: Vdd] | [0.1uF Cap] | [GND] ---------+---- [Pin 2: GND] [MCU Clock In] <----- [Pin 3: Output] ```