The **MHO+63TCD-R** is a high-precision, temperature-compensated crystal oscillator (TCXO) module. It belongs to the MHO series, typically manufactured by companies like **MtronPTI**. These components are designed for high-reliability applications where frequency stability is critical across a wide range of operating temperatures. --- ### Technical Specifications Breakdown | Feature | Specification Details | | :--- | :--- | | **Component Type** | TCXO (Temperature Compensated Crystal Oscillator) | | **Package Style** | 14-pin DIP (Dual In-line Package) - Full size | | **Output Type** | CMOS / TTL Compatible | | **Input Voltage (Vcc)** | Typically +3.3V or +5.0V (Model specific) | | **Stability** | ±1.0 ppm to ±5.0 ppm (Typical range) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | --- ### Key Electronic Components Inside A TCXO like the MHO+63TCD-R is not just a crystal; it is an integrated circuit assembly consisting of: 1. **Quartz Crystal Resonator:** The heart of the part that vibrates at a specific frequency. 2. **Compensation Network:** A temperature sensor and a compensation circuit (analog or digital) that adjusts the load capacitance to counteract frequency "drift" caused by temperature changes. 3. **Varactor Diode:** Used within the circuit to pull the crystal frequency slightly based on the compensation voltage. 4. **Buffer Amplifier:** Ensures the output signal is strong enough to drive other logic gates (CMOS/TTL) without distorting the frequency. ### Pin Configuration (Standard 14-pin DIP Layout) While four pins are usually active, the physical footprint follows the 14-pin standard: * **Pin 1:** N/C (No Connection) or Voltage Control (if it were a VCTCXO). * **Pin 7:** Case Ground (GND). * **Pin 8:** Output (The actual frequency signal). * **Pin 14:** Supply Voltage (Vcc). --- ### Applications Due to its high stability and rugged DIP packaging, this part is commonly found in: * **Telecommunications:** Base stations and synchronization timing. * **Test & Measurement:** Oscilloscopes and frequency counters. * **Military/Aerospace:** Radio communication systems requiring "Instant-on" stability without a warm-up period (unlike Oven Controlled Oscillators). ---