Description
The HC-49US 28.63636 MHz Crystal is a high-precision quartz resonator, frequently used in specialized video and signal processing applications. The 28.63636 MHz frequency is a classic “video standard” clock frequency, often used for generating NTSC color subcarrier reference signals, making it an essential component for legacy video hardware, specialized timing systems, and certain high-speed communication interfaces.
Housed in the robust and industry-standard HC-49US 2-pin through-hole package, this crystal is designed for high reliability and straightforward integration into PCB assemblies. The resistance-welded, hermetically sealed enclosure provides excellent defense against environmental stressors such as humidity and thermal cycling. With a tight frequency tolerance of 20 PPM and a standard load capacitance of 20 pF, it delivers the stable, low-jitter clock performance necessary for precision electronic circuits.
Key Features
- Precision Frequency: 28.63636 MHz is a key frequency for NTSC video standards and specialized signal processing.
- High Accuracy: A tight 20 PPM frequency tolerance ensures minimal clock drift in sensitive circuits.
- Standardized Footprint: The 2-pin HC-49US design is the global standard for through-hole crystal oscillators.
- Robust Build: Hermetically sealed packaging provides long-term operational stability and protection against environmental contaminants.
- Design Friendly: Standard 20 pF load capacitance integrates easily with most microcontroller and DSP oscillator stages.
Application
- NTSC Video Color Subcarrier Reference
- Specialized Digital Signal Processing (DSP)
- Microcontroller System Clocking
- Industrial Data Acquisition Systems
- Communication Interface Modules
Package Includes
- 2 x HC-49US 28.63636 MHz Crystal (Through-Hole Package)
Specifications
| Parameter | Specification |
|---|---|
| Part Number | HC-49US |
| Frequency | 28.63636 MHz |
| Load Capacitance | 20 pF |
| Frequency Tolerance | 20 PPM |
| Mounting Type | Through-Hole (2-Pin) |
