Planar el640.480-af1 Manual De Usuario
EL640.480-AF1 VGA Operations Manual (020-0349-00A)
5
Specifications
Control Basics
The EL panel is a matrix structure with column and row electrodes arranged in
an X-Y formation. Light is emitted when an AC voltage of sufficient amplitude
is applied at a row-column intersection. The display operation is based on the
symmetric, line at a time data addressing scheme. Required operating voltages
are provided by an integrated DC/DC converter.
an X-Y formation. Light is emitted when an AC voltage of sufficient amplitude
is applied at a row-column intersection. The display operation is based on the
symmetric, line at a time data addressing scheme. Required operating voltages
are provided by an integrated DC/DC converter.
Unless otherwise specified, performance characteristics are guaranteed when
measured at 25
measured at 25
°C.
Power
The supply voltages are shown in Table 1. All internal high voltages are
generated from the display supply voltage (V
generated from the display supply voltage (V
H
). The logic supply voltage (V
L
)
should be present whenever video input signals or V
H
is applied. The
minimum and maximum specifications in this manual should be met, without
exception, to ensure the long-term reliability of the display. Planar does not
recommend operation of the display outside these specifications.
exception, to ensure the long-term reliability of the display. Planar does not
recommend operation of the display outside these specifications.
Table 1. DC Input Voltage Requirements.
AF1 Notes
V
L
+5 V
±5%
absolute max 7.0 V
V
H
+12 V
±10%
absolute max 15 V
I
L
, max
75 mA
@ V
L
= +5 V
I
H
, max
.7 A
@ V
H
= +12 V
Ptyp, 120 Hz
4.5 W
3840 'E' characters
Pmax, 120 Hz
8.4 W
50/50 2x2 checkerboard
CAUTION: Absolute maximum ratings are those values beyond which
damage to the device may occur.
damage to the device may occur.
Table 2. Video Input Requirements.
Description Min
Max
Units
Notes
Video logic high voltage
3.9
5.0
V
All input thresholds are CMOS
Video logic low voltage
0
0.9
V
Video lines have 100
Ω series
resistors
Video logic input current
–
±10
µA
CAUTION: There is no overcurrent protection on either the VH or VL inputs
to protect against catastrophic faults. Planar recommends the use of a series
fuse on the 12 volt supply. A general guideline is to rate the fuse at 1.8 to 2
times the display maximum current rating.
to protect against catastrophic faults. Planar recommends the use of a series
fuse on the 12 volt supply. A general guideline is to rate the fuse at 1.8 to 2
times the display maximum current rating.