ON Semiconductor LC72131M: PLL Frequency Synthesizer for Electronic Tuning

The LC72131M from ON Semiconductor is a high-performance PLL (Phase Locked Loop) frequency synthesizer designed to cater to the advanced needs of electronic tuning systems. This integrated circuit is especially well-suited for applications in car stereo systems, home audio equipment, and other radio tuning devices.

Key Features:

• Wide Operating Range: The LC72131M operates at a voltage range from 4.5V to 5.5V, making it versatile for various electronic tuning systems.
• High-Resolution Step: It offers a high-resolution step frequency that can be set as low as 6.25 kHz, allowing for precise tuning capabilities.
• Serial Data Input: The device uses serial data input, which simplifies the connection to microcontrollers and reduces the number of required I/O lines.
• Programmable Divider: A programmable divider function is included, which supports both 1/2 and 1/3 division, providing flexibility in frequency synthesis.
• Multiple Reference Frequencies: The LC72131M can accommodate a variety of reference frequencies, enhancing its adaptability to different system designs.

Applications:

• Car audio systems
• Home stereo systems
• Communication equipment
• Other radio-related applications

The device is packaged in a compact SOP (Small Outline Package), which is ideal for space-constrained applications. Its surface-mount design allows for efficient assembly in automated production lines, contributing to reduced manufacturing costs and time.

With the LC72131M, ON Semiconductor continues its tradition of providing innovative solutions that enhance the performance and functionality of electronic tuning systems. Its combination of high precision, flexibility, and ease of integration makes it an excellent choice for designers looking to create sophisticated tuning solutions.