The HT2811 is a remote control encoder IC manufactured by Holtek. It is designed for use in a variety of remote control applications, particularly those requiring a cost-effective and reliable solution. The HT2811 encodes the input data from the keypad into a modulated signal suitable for transmission via infrared (IR) or radio frequency (RF) communication links.

Applications

• Remote control for TVs
• Remote control for DVD players
• Remote control for air conditioners
• Remote control for set-top boxes
• Remote control for other consumer electronic devices
• Garage door openers
• Security systems

Features

• Low power consumption
• Wide operating voltage range
• Multiple address options
• Various data code formats
• Minimal external components required
• Cost-effective solution

Benefits

• Extended battery life due to low power consumption
• Versatile application due to wide operating voltage range
• Reduced system cost by minimizing external components
• Flexible coding options that accommodate diverse product requirements
• Enhanced remote control functionality through improved signal encoding

Additional Details

The HT2811 typically operates with a supply voltage ranging from 2.4V to 5V. It supports several encoding formats, including pulse width modulation (PWM) and bi-phase modulation, depending on the specific application requirements. The IC's multiple address options facilitate unique device identification, preventing interference between different remote controls in the same environment. The device is usually available in DIP or SOP packages, making it easy to integrate into existing electronic designs. Its reliability and affordability make it a popular choice for numerous remote control applications.