5050 Symphony LED lamp bead size: 5.0×5.0×1.6mm. The 5050 Symphony LED lamp bead has a built-in IC, which is an intelligent externally controlled LED light source that integrates the control circuit and the light-emitting circuit. Its appearance is the same as a 5050LED lamp bead, and each component is a pixel. The inside of the pixel includes an intelligent digital interface data latch signal shaping and amplifying drive circuit, a power supply voltage regulator circuit, a built-in constant current circuit, a high-precision RC oscillator, and the output driver adopts patented PWM technology, which effectively ensures the high color of the light in the pixel. consistency.

 The data protocol adopts the communication method of unipolar return-to-zero code. After the pixel is powered on and reset, the DIN terminal accepts the data transmitted from the controller. The 24bit data sent first is extracted by the first pixel and sent to the pixel. The data latch inside the point, the remaining data is shaped and amplified by the internal shaping processing circuit and then forwarded and output to the next cascaded pixel point through the DO port. After the transmission of each pixel point, the signal is reduced by 24bit. The pixel adopts automatic shaping and forwarding technology, so that the cascaded number of the pixel is not limited by the signal transmission, but only limited by the signal transmission speed requirement. LED has the advantages of low voltage drive, environmental protection and energy saving, high brightness, large scattering angle, good consistency, ultra-low power, ultra-long life and so on. By integrating the control circuit on the LED, the circuit becomes simpler, the volume is smaller, and the installation is easier.

     The LED lamp bead integrates a high-quality external control single-wire serial cascade constant current IC; the control circuit and the chip are integrated in the SMD 5050 components, forming a complete external control pixel, with uniform color temperature effect and high consistency. Built-in data shaping circuit, any pixel receives the signal after waveform shaping and then outputs it to ensure that the line waveform distortion will not accumulate. Built-in power-on reset and power-down reset circuits, no lights when powered on; grayscale adjustment circuit (256-level grayscale adjustable). The red light drive is specially processed, and the color matching is more balanced. Single-wire data transmission, infinite cascade. Shaping forwarding enhancement technology, the transmission distance between two points exceeds 10M. The data transmission frequency can reach 800Kbps, and when the refresh rate is 30 frames/second, the number of cascades is not less than 1024 points.