The LM567 from Xinbole is a precision tone decoder and phase-locked loop (PLL) frequency detection IC designed for reliable signal recognition and frequency-selective applications. Operating within a supply voltage range of 4.5V to 9V, this device provides stable and accurate frequency detection with excellent noise immunity, making it ideal for communication, control, and signal processing systems.
Built using advanced analog PLL technology, the LM567 locks onto a specific input frequency and provides a clean, stable output when the target tone is detected. While it does not use Schottky diode technology, its internal design ensures fast locking response, low false triggering, and efficient signal discrimination. This results in high accuracy, improved reliability, and consistent performance even in noisy electrical environments.
Compared to lower-voltage signal processing ICs, the LM567 offers optimized frequency detection stability within a controlled voltage range, enhancing overall system precision and operational reliability. Its internal oscillator and narrow-band filter design allow highly selective frequency recognition, making it ideal for tone-based control systems.
Available in both DIP and SOP package options, the LM567 supports flexible PCB integration for through-hole and surface-mount applications. It is widely used in remote control systems, touch-tone decoding, frequency monitoring, communication circuits, and alarm systems. With its combination of accuracy, stability, and ease of use, the Xinbole LM567 is a dependable solution for frequency-based electronic applications.
Key Features:
- Operating voltage range: 4.5V to 9V
- PLL-based tone and frequency decoder
- High noise immunity and stable operation
- Fast lock and reliable frequency detection
- Narrow-band signal filtering capability
- Low false triggering performance
- Integrated oscillator design
- Available in DIP and SOP packages
Applications:
- Tone decoding systems
- Remote control receivers
- Frequency monitoring circuits
- Communication signal detection
- Alarm and security systems
- Touch-tone decoding (DTMF-like applications)
- Industrial control signal processing
