NT3881D ETC-unknow, NT3881D Datasheet - Page 21

• Manufacturer Part Number: NT3881D
• Description: Dot Matrix Lcd Controller And Driver
• Manufacturer: ETC-unknow

(3) Bias Power Connection
NT3881D provides 1/4 or 1/5 bias for various duty cycle applications. The power division voltage is described in the following
table. The connection of NT3881D, power supply, and resistors are also shown as follows:
NT3881D
Power Division
VDD
V
V
V
V
V
V1
V2
V3
V4
V5
1
2
3
4
5
VDD
VEE
R
R
R
R
VR
Note: The resistance value depends on the LCD panel size.
V
LCD
1/8, 1/11 Duty Cycle - 1/4 Bias
V
V
V
V
DD
DD
DD
DD
V
DD
- 1/4 V
- 1/2 V
- 1/2 V
- 3/4 V
- V
LCD
21
LCD
LCD
LCD
LCD
NT3881D
1/16 Duty Cycle - 1/5 Bias
VDD
V1
V2
V3
V4
V5
V
V
V
V
VDD
DD
DD
DD
DD
V
DD
- 1/5 V
- 2/5 V
- 3/5 V
- 4/5 V
VEE
R
R
R
R
R
VR
- V
LCD
V
LCD
LCD
LCD
LCD
LCD
NT3881D
V2.4