CXA2112 Sony Corporation, CXA2112 Datasheet - Page 16

• Manufacturer Part Number: CXA2112
• Description: LCD Driver
• Manufacturer: Sony Corporation

CMOS Logic Connection
Setting Value and CMOS Output Pins
There are two ways to use these pins.
A. Connect directly to the CXA2111R.
B. Connect to CMOS logic.
R1 sets the level for setting values 1 and 2. The appropriate resistance value changes depending on numbers
of CXA2112R are driven by one CMOS logic (1-channel or RGB 3-channel drive, or one CXA2112R (6-
outputs/ch) or two CXA2112R (12-outputs/ch)).
Recommended resistance values are given in Table A-3.
CMOS Logic Connection
Usage of CXA2112R and Threshold Setting Resistor R1
R1 value
Setting value
Connect to the corresponding CXA2111R pins POS_CNT1 and POS_CNT2. This allows bit setting via the
CXA2111R register controlled by I
Connect CMOS logic as shown in the diagram. See Table A-2.
0
1
2
3
Table A-2
6-outputs
RGB 1-channel drive
270kΩ
Hi-Z
Hi-Z
H
a
L
12-outputs
Table A-3
150kΩ
H
H
b
L
L
6-outputs
RGB 3-channel drive
2
100kΩ
C bus.
V
MOS
Supply voltage
12-outputs
= 3.3 to 5V
V
47kΩ
MOS
– 16 –
M
O
C
S
a
b
R1
(2)
1
CXA2112R
(POS_CNT2)
POS_CNT1
CXA2112R