ANX5901

     The ANX5901 is 3 output channels special for RGB LED driver circuit. It also include internal  intelligent digital port data latch and signal reshaping amplification drive circuit. ANX5901 use single NRZ communication mode. After the chip power on reset, the DIN port receives data from controller, the first IC collect initial 24bit data then sent to the internal data latch, the other data which reshaping by the internal signal reshaping amplification circuit sent to the next cascade IC through the DO port. After transmission for each chip, the signal to reduce 24bit. IC adopts auto reshaping transmit technology, making the chip cascade number is not limited the signal transmission, only depend on the speed of signal transmission. The data latch of IC depends on the received 24 bit data produce different duty ratio signal at OUTR, OUTG, OUTB port. All chip synchronously send the received data to each segment when the DIN port input a reset signal. It will receive new data again after the reset signal finished. Before a new reset signal received, the control signal of  OUTR, OUTG, OUTB port unchanged. IC sends PWM data that received justly to OUTR, OUTG, OUTB port, after receiving a low voltage reset signal the time retains 24us at least.