NT7603BDB 데이터 시트보기 (PDF) - Novatek Microelectronics
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NT7603BDB Datasheet PDF : 25 Pages
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NT7603
(3) Bias Power Connection
NT7603 provides 1/4 or 1/5 bias for various duty cycle applications. The built-in power division resister divide voltage is
described in the following table. The division resister is The connection of NT7603, power supply, and resistors are also shown
as follows:
Power Division
V1
V2
V3
V4
V5
1/8, 1/11 Duty Cycle - 1/4 Bias
VDD - 1/4 VLCD
VDD - 1/2 VLCD
VDD - 1/2 VLCD
VDD - 3/4 VLCD
VDD - VLCD
1/16 Duty Cycle - 1/5 Bias
VDD - 1/5 VLCD
VDD - 2/5 VLCD
VDD - 3/5 VLCD
VDD - 4/5 VLCD
VDD - VLCD
The bias is auto selected by duty cycle. When LCD is set to 1/16 duty, the bias is set to 1/5. Otherwise, the bias is set to 1/4.
The ITO Option can select the division resister value:
OPT_R1
No ITO (1)
No ITO (1)
ITO On (0)
ITO On (0)
OPT_R0
No ITO (1)
ITO On (0)
No ITO (1)
No ITO (0)
Division Resister
è 2.2K
è 4K
è 6.8K
No built-in resister
(external input)
VDD
VDD
V1
V2
NT7603 V3
V4
V LCD
Built-in bias resister
2.2K,4K or 6.8K ohm.
V5
VR
GND
VDD
V1
V2
NT7603
V3
V4
V5
VDD
R
R
VLCD
R
R
VR
GND
VDD
V1
V2
NT7603
V3
V4
V5
VDD
R
R
R
V LCD
R
R
VR
GND
Exit Power division. (The resistance value depends on the LCD panel size.)
18/25
Ver 0.5
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