The **MHO+23TDD-R** is a specific part number typically associated with **MHO+ Series** high-precision, high-frequency crystal oscillators or electronic timing modules. These components are essential in telecommunications, networking, and precision instrumentation. Below is a detailed breakdown of the electronic characteristics and specifications typical for this part. --- ### 1. General Specifications The part belongs to a family of **Thru-Hole (THT)** crystal oscillators, often housed in a 14-pin or 8-pin DIP (Dual In-line Package) compatible metal enclosure. | Feature | Description | | :--- | :--- | | **Output Type** | CMOS / TTL Compatible | | **Package Style** | 14-pin DIP (Full size) or 8-pin DIP (Half size) | | **Frequency Range** | Usually 1.000 MHz to 100.000 MHz | | **Supply Voltage** | Typically 5.0V or 3.3V (Varies by suffix) | | **Operating Temperature** | Standard (-10°C to +70°C) or Extended (-40°C to +85°C) | --- ### 2. Part Number Breakdown (Decoding) While naming conventions vary slightly by manufacturer (such as MtronPTI), the suffix "23TDD-R" generally decodes as follows: * **MHO+**: The series designation (High-speed CMOS/TTL Oscillator). * **23**: Often denotes the frequency stability (e.g., ±50ppm or ±100ppm depending on the datasheet version). * **T**: Denotes the operating temperature range (T usually refers to the standard commercial range). * **DD**: Often refers to the Duty Cycle (e.g., 45/55% tight symmetry). * **-R**: Indicates **RoHS Compliance** (Lead-free). --- ### 3. Pin Configuration For the standard 14-pin DIP package (though only 4 pins are usually active): | Pin Number | Function | Description | | :--- | :--- | :--- | | 1 | NC or Tri-state | No connection or Output Enable/Disable | | 7 | GND | Circuit and Case Ground | | 8 | Output | The generated clock signal | | 14 | Vcc | Positive Supply Voltage | --- ### 4. Key Electronic Features 1. **Low Jitter:** Designed for timing-sensitive applications like Ethernet, T1/E1, and Fibre Channel. 2. **Hermetic Seal:** The metal "can" is resistance-welded to protect the internal quartz crystal from moisture and atmospheric contaminants. 3. **Tri-state Functionality:** Allows the output to be placed in a high-impedance state, which is useful for testing or bus-oriented systems. --- ### 5. Common Applications * **Networking Equipment:** Routers, switches, and hubs. * **Industrial Controllers:** PLC (Programmable Logic Controllers) and automation hardware. * **Legacy Computing:** Motherboards and peripheral cards requiring a stable clock source. * **Test & Measurement:** Oscilloscopes and signal generators.