Home >
Control Circuits >Infrared Thermal Release Remote Control Circuits > Internal circuit and pin functions of LC219/220
Internal circuit and pin functions of LC219/220
Source: InternetPublisher:通通 Updated: 2010/11/19
LC219 is a versatile remote control coding circuit. It is not only used for infrared remote control, but also for ultrasonic and radio remote control circuits. It can also be used for dual-wire connection wired remote control circuits, as shown in Figure (a). When used for radio remote control, since the radio remote control circuit is specially equipped with a local carrier frequency oscillation circuit, the ⑩ pin can be grounded at this time to stop the internal carrier frequency oscillation circuit. LC220 is a decoding circuit used in conjunction with LC219. It includes a buffer circuit, a decoder, an output circuit and a timer, as shown in Figure (b).
Latest Control Circuits Circuits
- Tutorial on making your own remote-controlled robotic arm
- Tutorial for building a remote-controlled Arduino Air-Boat
- How to Build a Touch-Based Color-Changing Plant Using Arduino
- A simple door handle touch alarm circuit
- What is a RADAX motor?
- Perform surgery on the speaker protection circuit
- Methods for Eliminating Noise of Brushed DC Motors
- Amplitude and phase detection leakage protection device designed and manufactured using PIC16C711A
- Magnetic door and window anti-theft alarm
- Homemade anti-theft watchdog
Popular Circuits
- Agricultural spraying and insecticide control circuit
- Chicken farm photoelectric control circuit
- Automatic tuning control circuit
- Haier KFR-25GW air conditioner control circuit schematic diagram
- Galanz rice cooker control circuit
- Sprinkler control circuit using AC motor
- Forward and reverse control circuit of micro DC motor b
- Temperature detection control circuit for vegetable greenhouses
- Button type electronic volume control circuit
- Wide input range non-synchronous voltage mode control circuit