The **MHO+15TFD-R** is a high-precision, temperature-compensated crystal oscillator (TCXO) or clock module typically manufactured by **MtronPTI**. It is designed for high-reliability applications where frequency stability is critical. --- ### ## Technical Specifications The following table outlines the primary electronic characteristics of the MHO series, specifically the 15TFD-R variant: | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | TCXO (Temperature Compensated Crystal Oscillator) | | **Output Type** | HCMOS / TTL Compatible | | **Supply Voltage (Vcc)** | +5.0 VDC (Standard for the '15' series) | | **Package Style** | 14-pin DIP (Full size) or 4-pin Metal Header | | **Frequency Range** | Usually between 1.0 MHz to 160.0 MHz | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **RoHS Compliance** | Yes ('R' suffix indicates RoHS compliant) | --- ### ### Key Electronic Features 1. **Frequency Stability:** The "TFD" designation refers to specific stability and temperature parameters. These parts are engineered to maintain a very tight frequency tolerance (often ±1.0ppm to ±2.5ppm) regardless of external temperature fluctuations. 2. **Output Waveform:** The **HCMOS** output ensures compatibility with most modern digital circuits. It provides high-speed switching with low power consumption compared to older TTL logic. 3. **Hermetic Sealing:** The module is housed in a metal "can" package. This provides excellent EMI (Electromagnetic Interference) shielding and protects the internal quartz crystal from atmospheric moisture and contaminants. 4. **Pin Configuration:** While it resides in a 14-pin footprint, usually only 4 pins are active: * **Pin 1:** NC (No Connection) or Voltage Control. * **Pin 7:** Case Ground. * **Pin 8:** Output Signal. * **Pin 14:** Supply Voltage (+Vcc). --- ### ### Applications Due to its high stability and rugged packaging, the MHO+15TFD-R is commonly found in: * **Telecommunications:** Base stations and synchronization hardware. * **Test & Measurement:** Oscilloscopes and frequency counters. * **Military/Aerospace:** Guidance systems and secure communication links. * **Networking:** High-speed routers and switches.