![SVA NEC SVA190WX01TB Скачать руководство пользователя страница 8](http://html1.mh-extra.com/html/sva-nec/sva190wx01tb/sva190wx01tb_instructions-manual_1409093008.webp)
Global LCD Panel Exchange Center
www.panelook.com
One step solution for LCD / PDP / OLED panel application: Datasheet, inventory and accessory!
www.panelook.com
SN-SA-A0032-04-E 8/39
Not duplication without authorization
Shanghai SVA NEC
Liquid Crystal Display Co., Ltd.
4.3 ELECTRICAL CHARACTERISTICS
4.3.1 Driving for LCD panel signal processing board
Parameter Symbol
min.
typ.
max.
Unit
Remarks
Power
supply
voltage VDD
4.5 5.0
5.5 V -
Power supply current
IDD
-
800 Note1 950 Note2 mA
at VDD =
5.0V
Permissible ripple voltage
VRP
-
-
200
mV
VDD
Low VTL
-100
-
-
mV
Differential input threshold
voltage for LVDS receiver High VTH
-
-
+100 mV
at VCM =
1.2V
Note3
Input voltage width for LVDS receiver
VI
0
-
2.7
V
-
Terminal resistor
RT
-
100
-
-
Note1: Checked flag pattern (EIAJ ED-2522)
Note2: Pattern for maximum current
˄
2H1V dot inverse, 0/15 scale
˅
Note3: Common mode voltage for LVDS driver
4.3.2 Driving for backlight lamp
Parameter Symbol
min.
typ.
max.
Unit
Remarks
Lamp voltage
VBLH
-
680
-
Vrms
Note2
ǃ
Note3
Lamp current
IBL
3.0
6.5
8.0
mArms
Note3
1125
- - Vrms
Ta = 25
ć
Note2
ǃ
Note3
Lamp starting voltage
(discharge stabilization voltage)
Vs
1350
- - Vrms
Ta =0
ć
Note2
ǃ
Note3
Lamp oscillation frequency
FO
30
50
80
kHz
Note4
Note1: The backlight of this product is made up of 4-piece lamp. The specification above is only for one lamp.
Note2: The voltage timing cycle of each lamp should be set as the same phase. [Vs] and [VBLH] is the voltage
between the high port and low port, the value is the characteristic of lamp. The starting voltage of inverter
should be higher than the value. The possibility of not lighting exists by the lower voltage, so the suitable
voltage should considered by the test.
Note3: The asymmetric ratio of working waveform for lamps (Lamp voltage peak ratio, Lamp current peak ratio
and waveform area ratio) should be less than 5% (See the following figure). If the waveform is asymmetric,
DC (Direct current) element applies into the lamp. In this case, a lamp lifetime may be shortened, because
a distribution of a lamp enclosure substance inclines toward one side between low voltage terminal (Cold
terminal) and high voltage terminal (Hot terminal).
(Ta=25°C)
(Ta=25°C) Note1