GENERAL DESCRIPTION
Each channel provides a maximum current of 60 mA. BANK0 is 6-bits grayscale data and the BNAK1 is 8-bits grayscale data. Depending on the system requirement, both PWM banks could be utilized jointly to achieve maximum 8+6 bit grayscale performance. Alternatively, users can choose either 64-graylevel bank or 256-graylevel bank for dot correction, and the remaining bank as image data. DM163 could also be constructed as a PWM controller for LED drivers. When VDDH is connected to VDD, each of the 24 output channels outputs can act as an inverse digital signal for controlling the LED driver. FEATURES
24 Output Channels 8 + 6-bits PWM grayscale Control Constant Current Output: 5mA to 60mA LED Power Supply Voltage up to 17V VDD=3V to 5.5V Varied Output Current Level Set By 3 External Resistors Serial Shift-In Architecture for Grayscale Data 8x3-CHANNEL CONSTANT CURRENT LED DRIVERS Version: A.004 Page 1 點晶科技股份有限公司 SILICON TOUCH TECHNOLOGY INC. Block Diagram DM163 Figure 1. Functional Schematic of Whole Chip The schematic of DM163 comprises of several fundamental units as shown in Figure 1.
SiTi
