Sharp R-320CD Manual do Utilizador Página 13

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LD-22Z03D- 10
6.Electrical Characteristics
6.Electrical Characteristics6.Electrical Characteristics
6.Electrical Characteristics
6-1.TFT-LCD panel driving
6-1.TFT-LCD panel driving 6-1.TFT-LCD panel driving
6-1.TFT-LCD panel driving
T
a
=+25℃
Symbol
SymbolSymbol
Symbol
Unit
UnitUnit
Unit
V
CC
V
I
CC
mA
V
L
V
V
RP
mV
P-P
High
V
TH
mV
Low
V
TL
mV
V
IH
V
V
IL
V
I
OH
μA
V
I2
=
+5V【*4】
I
OL
μA
R
T
Ω
【*1】 On-off conditions for supply voltage
Parameter
ParameterParameter
Parameter
Current dissipation
Input voltage width for LVDS receiver
Permissive input ripple voltage
Min.
Min.Min.
Min.
0
+10
- 0.8
400
Supply voltage 4.75
Differential input
Threshold voltage
-10
-
0.0
2.2
Input reak current
Terminal resistor
Input voltage
100
2.4
200
5.25
750 1400
Max.
Max.Max.
Max.
5.0
V
I2
=0V 【*4】
V
CM
=+1.2V
【*3】
【*4】3.3
Condition
ConditionCondition
Condition
V
CM
+100
V
CM
-100
Vcc=5V -
Typ.
Typ.Typ.
Typ.
Differential input
Remark
RemarkRemark
Remark
【*1】
【*2】
Vcc = 5V
V
VV
V
CC
CCCC
CC
t
2
t
1
t
3
t
4
Data
DataData
Data
0.9 V
CC
0.1 V
CC
0.9 V
CC
0.1 V
CC
20μs t
1
20ms
0 t
2
40ms
0 t
3
40ms
0.5s t
4
Vcc-dip conditions
・󲘬
Hsync/Vsync need not be input so that this model may drive only by the ENAB signal.
・󲘬
The relation between the data input and the backlight lighting will recommend the above-mentioned input sequence.
When the backlight is turned on before the panel operates, there is a possibility of abnormally displaying.
The liquid crystal module is not damaged.
【*2】 Current dissipation
Typical current situation : 253-gray-bar pattern
【*3】 V
CM
: LVDS common mode voltage
( Vcc=+5V、fck = 54MHz、Ta=25℃)
RGB RGB RGB RGBRGB
GS0 GS1 GS2 GS251 GS252
・・・
Back light
Back lightBack light
Back light
t
5
t
6
ON
OFF OFF
V
th
t
d
V
CC
Vmin
V
th
= 4.5V
V
min
= 4.75V
300ms
t
5
200ms
t
6
V
th
V
CC
V
min
t
d
20ms
V
CC
V
th
Vcc-dip conditions should also follow the On-off
conditions for supply voltage
【*4】 SELLVDS
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