DM164 SITI [Silicon Touch Technology Inc.], DM164 Datasheet - Page 24

• Manufacturer Part Number: DM164
• Description: 8x3-CHANNEL CONSTANT CURRENT LED DRIVER
• Manufacturer: SITI [Silicon Touch Technology Inc.]

c.3 IWAVE=”L” and Less than 11-bit PWM application
When the DM164 operates at n-bit PWM grayscale application and IWAVE is set to ”L”
(where n is less than 11). Users must add k-bit dummy data into the 16-bit GD mode data
of each channel (where k = 16-n). The 16-bit GD mode data format of each channel is
showed below:
The 5 bits LSB and (k-5) bits MSB of 16-bit GD mode data of each channel must be filled
with all “0” ( k=16-n & k > 5).
For example:
When the DM164 operates at 10-bit PWM grayscale application and IWAVE=”L”, the 5-bit
LSB and 1-bit MSB of the 16-bit GD mode data must be filled with “0”. The 16-bit data
format is showed below:
(k-5) bits Dummy Data
8x3-CHANNEL CONSTANT CURRENT LED DRIVERS
0
(k-5)-bit
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
‧‧‧
1-bit
1 bit
0
PWM
Data
MSB
[9]
0
MSB-1
PWM
[n-1]
PWM
Data
Data
MSB
[8]
10-bit PWM Data
MSB-1
PWM
[n-2]
Data
10-bit
‧‧‧
n-bit PWM Data
16-bit
16-bit
‧‧‧
n-bit
LSB+1
PWM
Data
[1]
LSB+1
PWM
PWM
Data
Data
LSB
[1]
[0]
Version:A.002
PWM
Data
LSB
[0]
5 bits Dummy Data
0
‧‧‧
5-bit
5 bits Dummy Data
0
‧‧‧
5-bit
0
DM164
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