Typical infrared emission application circuit diagram composed of TC9012F
The TC9012 serves as an essential component in remote control systems, particularly where off-screen transmission is required. The oscillator generates a stable frequency signal, which is essential for the reliable operation of the transmitter. The divider timing generator ensures that the output signal is properly timed, facilitating accurate communication between the remote control and the receiving device.
The system code latch is responsible for storing the unique system code that identifies the transmitter, preventing interference from other devices. With an 8-bit configuration, the TC9012 can accommodate 256 unique codes, making it versatile for various applications. The data storage unit temporarily holds the commands inputted through the key scan input, allowing for efficient processing and transmission.
The key scan input and output units are integral for user interaction, enabling the device to recognize button presses on the remote control. When a button is pressed, the corresponding signal is scanned and sent to the output unit, which modulates the carrier frequency for transmission. The carrier control unit ensures that the signal is transmitted at the correct frequency, ensuring compatibility with the receiver.
In summary, the TC9012 is a sophisticated and versatile transmitter designed for effective remote control applications, featuring a robust architecture that supports multiple functionalities while maintaining reliable performance in various environments.TC9012 is a special off screen remote control code transmitter. It includes oscillator, divider timing generator, system code latch, data storage, key scan input, key scan output, the carrier control and output units. Its internal 8-bit system code setting can be achieved with 256 points while operating the transmitter and the interfering transmitter.
TC9.. 🔗 External reference
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