NL6448AC33-15 NEC, NL6448AC33-15 Datasheet - Page 10

• Manufacturer Part Number: NL6448AC33-15
• Description: TFT COLOR LCD MODULE
• Manufacturer: NEC

10
NL6448AC33 - 15
(3) Detail of interface signal
note 1 : The variable resistor for luminance control should be 10 K
note 2 : In case of voltage control for brightness by BRTH / BRTL, at first, set BRTH to be “0” V And BRTL input voltage can
R
G
B
Hsync
Vsync
CLK
DE
FIELD
MODE
BRTH
BRTL
BRTC
Symbol
minimum luminance.
control the brightness. When BRTL input voltage is “1 V” the luminance become maximum. And when its voltage is
“0 V”, the luminance becomes minimum.
BRTH
I/O
I
I
I
I
I
I
I
I
I
I
I
I
Positive
Positive
Positive
Negative
Negative
Negative
Positive
Positive
<Connection of the variable resistor to pins>
Logic
–
–
–
–
Red video signal (0.7 Vp-p, 75 )
Green video signal (0.7Vp-p, 75 )
Blue video signal (0.7Vp-p, 75 )
Horizontal synchronous signal (TTL level)
Vertical synchronous signal (TTL level)
Dot clock
Timing signal for display data
Data enable signal (TTL level)
DE recognize video signals when MODE is “H”
DE is controlled by MODE (Timing mode select)
Field signal
This signal judges the first field or the second field
in NTSC / PAL signal input.
Timing mode select signal (TTL level)
L or Open = Fixed mode
H
Backlight luminance control
Connect 10 K
Backlight ON/OFF control signal (TTL level)
H or Open = Backlight ON
L
= DE mode
= Backlight OFF
variable resistor ( 1) or voltage control ( 2)
type, and zero point of the resistor corresponds to the
Description
BRTL (10 k
5%, B curve)
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