ST2226A SiTi, ST2226A Datasheet - Page 15

• Manufacturer Part Number: ST2226A
• Description: PWM-Controlled Constant Current Driver
• Manufacturer: SiTi

www.DataSheet4U.com
2) Serial Shift-In Luminance Data
{16(channel) x 10 bit (luminance) x 1(led)} whereas in MODE2 operation, the data is
set as {16(channel) x 10 bit (luminance) x 2(led)} configuration. The driver IC can
remember both 2 sets of luminance data.
the MODE1 operation, the most significant bit (MSB, Bit 9, Channel 15) luminance
data is the first data shifted in, whereas the least significant bit (LSB, Bit 0, Channel 0)
is the last data bit in a data set. The data structure for the MODE1 and MODE2 is
shown in the Figure 6. and Figure 7. respectively.
ST2226A
In the MODE1 operation, the data for shift registers and latches is set as
The serial shift architecture assumes a FIFO (first-in firs-out) discipline, hence in
D
點晶科技股份有限公司
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
點晶科技股份有限公司
點晶科技股份有限公司
in
Position
Channe
Lumina
Data
-nce
Bit
for
l
Figure 6. Luminance Data Structure in MODE 1
(LSB)
0
0
1
2
3
4
5
6
7
8
9
1
0
1
2
3
4
5
6
7
8
9
Version ： ： ： ： A.010
2
0
1
2
3
4
5
6
7
8
9
…
0
1
2
3
4
5
6
7
8
9
(MSB)
Page ： ： ： ： 14
15
0
1
2
3
4
5
6
7
8
9
ST2226A
D
out