The PT2126-C4A, manufactured by Princeton Technology Corp (PTC), is a remote control encoder IC utilizing CMOS Technology. It is designed for use in a variety of remote control applications. This IC encodes the input data and transmits it via an infrared (IR) signal. It is commonly used in applications where cost-effectiveness and low power consumption are critical.

Applications

• Television (TV) remote controls
• DVD player remote controls
• Set-top box (STB) remote controls
• Audio equipment remote controls
• Other consumer electronic device remote controls

Features

• CMOS Technology: Offers low power consumption and high noise immunity.
• Multiple Key Inputs: Allows for encoding of multiple functions.
• Infrared (IR) Transmission: Utilizes IR light for communication.
• Oscillator Circuit: Built-in oscillator simplifies design.
• Customizable Codes: Supports customization of encoding codes for specific applications.
• Low Standby Current: Minimizes power consumption when not actively transmitting.

Benefits

• Cost-Effective Solution: Provides a low-cost option for remote control encoding.
• Long Battery Life: Low power consumption extends the battery life of remote controls.
• Reliable Performance: CMOS technology ensures reliable operation and noise immunity.
• Easy to Integrate: Simple pin configuration and minimal external components facilitate easy integration into various applications.
• Customizable Functionality: Allows for tailoring of remote control functions to specific product needs.

Additional Details

The PT2126-C4A typically operates with a 3V power supply. The specific encoding format and key assignments are configurable based on the application requirements. External components such as a ceramic resonator or crystal oscillator are used to set the carrier frequency of the IR signal. The output pin is connected to an IR LED for transmitting the encoded data. The device is commonly available in a DIP (Dual In-line Package) or SOP (Small Outline Package).