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參數(shù)資料
| 型號(hào)： | ENH104SP-400 |
| 英文描述： | LDO with Low ISUPPLY, High PSRR; Temperature Range: -40°C to 85°C; Package: 8-DFN T&R |
| 中文描述： | 10.4英寸的SVGA |
| 文件頁(yè)數(shù)： | 12/16頁(yè) |
| 文件大小： | 209K |
| 代理商： | ENH104SP-400 |
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Original specifications created by Sharp.
5
Panelview (503) 690-2460 www.whiteedc.com
Panelview is a subsidiary of White Electronic Designs Corporation
ENH104V1-350/450
Panelview
Enhancing the Vision
2) Typical current situation : 16-gray-bar pattern.
480 line mode/VCC=+3.3V/+5.0V
3) CK, R0~R5, G0~G5, B0~B5, Hsync, Vsytrc, ENAB, R/L, U/D
4) CK, R0~R5, G0~G5, B0~B5, Hsync, Vsync, ENAB
5) R/L
6) CK, R0~R5, G0~G5, B0~B5, Hsync, Vsync
7) ENAB, U/D
RGB
GS0
GS3
GS7
GS59
GS63
BACKLIGHT DRIVING
The backlight system is an edge-lighting type with double CCFT (Cold Cathode Fluorescent Tube). The characteristics
of a single lamp are shown in the following table.
Parameter
Symbol
Min.
Typ.
Max.
Unit
Remark
Lamp current
IL
2.0
6.0
6.5
mArms
(1)
Lamp power consumption
PL
3.0
W
(2)
Lamp frequency
FL
20
35
60
KHz
(3)
Kick-off voltage
VS
(950)
Vrms
Ta = 25°C
(1250)
Vrms
Ta = 0°C (4)
(1500)
Vrms
Ta = -10°C (4)
Lamp life time
LL
50000
hour
(5)
Notes:
1) Lamp current is measured with current meter for high frequency as shown below.
Inverter
Module
1
3
A
~
* 3pin is VLOW
1
3
A
~
2) At the condition of IL = 6.0mArms
3) Lamp frequency may produce interference with horizontal
synchronous frequency, and this may cause horizontal beat on the
display. Therefore lamp frequency shall be detached as much as
possible from the horizontal synchronous frequency and from the
harmonics of horizontal synchronous to avoid interference.
4) The open output voltage of the inverter shall be maintained for
more than 1 sec; otherwise the lamp may not be turned on.
5) Since the lamp is consumable, the life time written above is a
referential value and it is not guaranteed in this specification
sheet by Panelview.
Lamp life time is defined that it applied either (1) or (2) under this
condition (Continuous turning on at Ta=25°C, IL=6.0mArms)
(1) Brightness becomes 50% of the original value under standard
condition.
(2) Kick-off voltage at Ta = -10°C exceeds maximum value,
1500 Vrms.
When operating under lower temp environments, the lamp
degradation is accelerated and the brightness becomes lower.
Ta=25°C
(Continuous operating for a minimum of one month under lower
temp conditions may reduce the brightness to half of the original
brightness.) If using in lower temp environments, periodic lamp
exchange by Panelview is recommended.
6) The performance of the backlight, for example life time or
brightness, is extremely influenced by the characteristics of the
DC-AC inverter for the lamp. When designing or ordering the
inverter, make certain that poor lighting caused by the mismatch of
the backlight and the inverter (miss-lighting,flicker, etc.) do not
occur. Once this is verified, the module should be operated in the
same condition as it is installed in the instrument.
7) It is required to have the inverter designed to allow the impedance
deviation of the two CCFT lamps and the capacity deviation of
barast capacitor.
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