SVA150XG Просмотр технического описания (PDF) - NEC => Renesas Technology
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SVA150XG Datasheet PDF : 31 Pages
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SN-SA-A0003-01-E 8/31
4.3 ELECTRICAL CHARACTERISTICS
4.3.1 Driving for LCD panel signal processing board
Parameter
Symbol
Power supply voltage
VCC
Power supply current
ICC
Permissible ripple voltage
VRP
Differential input threshold Low VTL
voltage for LVDS receiver
High VTH
Input voltage width for LVDS receiver
Vi
Terminating resistor
RT
Input voltage for MSL signal
Low
High
VFL
VFH
※1: Checkered flag pattern (EIAJ ED-2522);
※3: Common mode voltage for LVDS receiver
min. typ.
max. Unit
Remarks
3.0
3.3
3.6
V
-
- 330※1 600※2 mA at VCC = 3.3V
-
-
100 mV
For VCC
-100
-
mV at VCM = 1.2V
-
-
100 mV
Note3
0
-
2.4
V
-
-
100
-
Ω
-
0
-
0.8
V
-
2.0
-
VCC V
※2: 2H1V dot inverse pattern
4.3.2 Driving for backlight lamp
Parameter
Symbol min.
typ.
max. Unit
Remarks
Lamp current
Il
3.5
7.5
8.0 mArms at L = 250cd/ m2 (typ.)
Lamp voltage
Lamp starting voltage
Note1
Vl
-
560
1500
-
VS
1300
-
-
Vrms
For each lamp
-
Vrms
Ta = 0℃ Note2
-
Vrms Ta = 25℃ Note2
Oscillation frequency
FO
50
55
60
kHz
Note3
Note1: The value is the characteristic of lamp. The starting voltage of inverter should be lower than the value. But
the possibility of not lighting exists by the lower voltage, so the suitable voltage should considered by the
test .
Note2: The asymmetric ratio of working waveform for lamps (Lamp voltage peak ratio, Lamp current peak ratio
and waveform space 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).
Pa
Sa
Sb
Pb
|Pa - Pb| / Pb × 100 ≤ 5%
|Sa - Sb| / Sb × 100 ≤ 5%
Pa: Supply voltage/current peak for positive, Pb: Supply voltage/current peak for negative
Sa: Waveform space for positive part, Sb: Waveform space for negative part
Note3: Recommended value of “FO” is as following.
FO = 1/4 x 1/th x (2n-1) n: Natural number (1, 2, 3 ……)
Not duplication without authorization
Shanghai SVA NEC Liquid Crystal Display Co., Ltd.
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