Product Overview:
SK9818MICORX-D-000 is an intelligent external LED light source that integrates control circuits and light emitting circuits. Its appearance is the same as a SMD2121 top emitting LED bead, with each component being a pixel. The pixel interior contains an intelligent digital interface data latch signal shaping and amplification drive circuit, a power supply voltage stabilizing circuit, a built-in constant current circuit, a high-precision RC oscillator, and a patented PWM technology for output drive, which effectively ensures the color consistency of the light inside the pixel.
The data protocol adopts a unipolar return to zero code communication method. After the pixel is powered on and reset, the DIN terminal receives the data transmitted from the controller. The first 48bit data sent is extracted by the first pixel and sent to the data latch inside the pixel. The remaining data is processed and amplified by the internal shaping circuit, and then transmitted to the next cascaded pixel through the DO port. After each pixel transmission, The signal is reduced by 48 bits. The pixel adopts automatic shaping and forwarding technology, so that the number of cascaded pixels is not limited by signal transmission, only limited by signal transmission speed requirements.
Product features:
1. Single line serial cascade light drive integrated packaging
2. OUTR/G/B 48bit grayscale data structure
3. Three channel 65536 level grayscale adjustable; 0-6.0mA channel current adjustable
4. Product open circuit detection function; When an open circuit occurs at any port, the IC automatically turns off the function
Characteristic description:
TopSMD integrates high-quality external control single line serial cascade constant current ICs internally;
The control circuit and chip are integrated into SMD 2222 components to form a complete external control pixel, with uniform and consistent color temperature effects.
Built in data shaping circuit, any pixel receives a signal and undergoes waveform shaping before outputting, ensuring that line waveform distortion does not accumulate.
● Built in power on reset and power off reset circuits, with no light on when powered on;
OUT G/R/B current gain adjustment bits of 5 bits each, output grayscale level: 65536 levels;
● Maximum output constant current value 6.5mA; It also outputs a constant current value through the controller,
Shaping forwarding reinforcement technology, with a transmission distance between two points exceeding 10M
● Serial cascade interface, capable of receiving and decoding data through a single signal line.
Main application: LED full color transparent screen; Thin film screen
Product size: 2.2X2.2X1.05mm
