The **MHO+16TBD-R** is a specific part number typically associated with **MHO (Micro High Output)** series crystal oscillators manufactured by companies like MtronPTI. These components are essential for providing precise timing signals in digital circuits. --- ## 1. Technical Specifications The part number follows a specific nomenclature that defines its electronic characteristics: | Feature | Specification | Description | |:---|:---|:---| | **Component Type** | Crystal Oscillator (XO) | A complete timing circuit (crystal + active electronics). | | **Package Style** | 14-pin DIP (4-pin active) | A through-hole metal package for robust mounting. | | **Frequency Range** | Usually 1.0 MHz to 150 MHz | Specific frequency depends on the full ordering code. | | **Output Logic** | HCMOS / TTL | Compatible with high-speed CMOS and standard TTL circuits. | | **Supply Voltage** | 5.0V (Standard) | Operates on a standard 5V DC power rail. | | **Stability** | ±100 ppm (Typical) | Frequency deviation over temperature and time. | --- ## 2. Key Electronic Features The "MHO" series is known for several functional advantages in electronic design: ### A. Tri-State Functionality The **"T"** in the part number usually indicates **Tri-state (Enable/Disable)** capability. * When the control pin is high, the oscillator outputs its frequency. * When the control pin is low, the output enters a high-impedance state, reducing power consumption and allowing for bus sharing. ### B. Hermetic Sealing The unit is housed in a metal "can" that is resistance-welded. This protects the quartz crystal from moisture and atmospheric contaminants, ensuring long-term frequency stability. ### C. Output Characteristics * **Rise/Fall Time:** Designed for fast transitions to maintain signal integrity in high-speed digital systems. * **Load Drive:** Typically capable of driving a 15pF to 50pF capacitive load. --- ## 3. Typical Pinout (Standard 14-pin DIP) While the package has 14 pins, only 4 are electrically active: | Pin Number | Function | Description | |:---|:---|:---| | **1** | N/C or Tri-state | Enable/Disable control. | | **7** | Case Ground | Connected to the metal cover for EMI shielding. | | **8** | Output | The generated clock signal. | | **14** | Vcc | Positive power supply (+5V). | --- ## 4. Common Applications * **Microprocessors:** Providing the "heartbeat" for CPUs and MCUs. * **Networking:** Timing for Ethernet controllers and routers. * **Industrial Control:** Clocking for PLCs and automated machinery. * **Legacy Systems:** Often used in older hardware repairs due to the DIP package style.