The Holtek HT2820D is a highly integrated encoder IC designed for remote control applications. It is commonly used in various consumer electronics devices, offering a reliable and efficient solution for transmitting control signals.

Applications

• Remote controls for televisions
• Remote controls for DVD players
• Remote controls for air conditioners
• Remote controls for set-top boxes
• Wireless toys and games

Features

• Low power consumption: Optimized for battery-powered applications, ensuring longer battery life.
• Multiple key inputs: Supports a variety of key inputs for different control functions.
• Oscillator circuit: Integrated oscillator circuit simplifies the design and reduces external component count.
• Transmission enable control: Allows for controlled transmission, reducing unnecessary power consumption.
• Various data output formats: Offers flexibility in data output formats to suit different receiver requirements.

Benefits

• Extended battery life: Low power consumption ensures prolonged operational time for battery-powered devices.
• Simplified design: Integrated features reduce the need for external components, streamlining the design process.
• Reliable performance: Provides stable and accurate signal transmission, ensuring reliable remote control functionality.
• Cost-effective solution: Offers a balance of performance and cost, making it suitable for mass-market consumer electronics.
• Versatile application: Can be used in a wide range of remote control applications, providing flexibility for different product designs.

Additional Details

The HT2820D typically operates with a supply voltage of 2.0V to 5.0V. It utilizes a CMOS process technology. The device is usually available in DIP or SOP packages, depending on the specific application requirements. The encoding format often includes address and data bits, allowing for a large number of unique device addresses, thus minimizing interference between different remote control devices. The duty cycle and carrier frequency are configurable, allowing for optimized performance in different environments. Proper PCB layout and component selection are important to ensure optimal performance and minimize signal interference.