The **MHO+67FCG-R** is a high-precision, temperature-compensated crystal oscillator (TCXO) component, typically used in radio frequency (RF) and high-accuracy timing circuits. Below is a detailed breakdown of its electronic specifications and characteristics. --- ## 1. Technical Overview This component is manufactured by **Mercury Electronic**, specializing in frequency control products. The "MHO" series typically represents a specific package type (High-Precision SMD), and the suffixes denote frequency, stability, and temperature range. ### Key Specifications | Feature | Parameter Detail | | :--- | :--- | | **Output Type** | CMOS / HCMOS | | **Supply Voltage (Vcc)** | Typically +3.3V or +5.0V (Variant dependent) | | **Frequency Stability** | $\pm$1.0ppm to $\pm$2.5ppm (High Stability) | | **Package Style** | Surface Mount Device (SMD) | | **Operating Temperature** | -40°C to +85°C (Industrial Grade) | | **RoHS Status** | Compliant (R suffix denotes RoHS) | --- ## 2. Pin Configuration For the MHO SMD series, the pinout follows a standard 4-pad or 6-pad configuration. Typically: 1. **Pin 1 (VC / NC):** Voltage Control (for VCTCXOs) or No Connection. 2. **Pin 2 (GND):** Case ground and circuit supply return. 3. **Pin 3 (Output):** High-speed CMOS clock output. 4. **Pin 4 (Vcc):** Positive power supply input. --- ## 3. Core Features & Advantages * **Temperature Compensation:** Unlike standard crystal oscillators (XO), the "FCG" designation often points to internal compensation circuitry that adjusts the frequency based on ambient temperature changes, preventing "drift." * **Low Phase Noise:** Designed for communication equipment where signal integrity is critical. * **Compact Footprint:** Miniature SMD design allows for high-density PCB layouts. --- ## 4. Common Applications Due to its high stability, the MHO+67FCG-R is found in the following sectors: * **Wireless Communication:** Base stations, point-to-point radio, and Wi-Fi infrastructure. * **GPS/GNSS:** Used in positioning systems that require precise timing to synchronize with satellites. * **Networking:** Synchronous Ethernet (SyncE) and hardware clocking for routers/switches. * **Test & Measurement:** Internal clock reference for portable oscilloscopes or signal generators. --- ## 5. Part Number Decoding (Typical) * **MHO:** Series Designation (Mercury High Precision). * **67:** Package size code (e.g., 7.0 x 5.0 mm). * **F/C/G:** Specific internal codes for stability (F), temperature range (C), and voltage (G). * **R:** Denotes RoHS compliance.