EL552.256-Q2 Operations Manual (OM410-00) 5
J1
J3
CONVERTER
DISPLAY
J0
VH is applied. The minimum and maximum specifications in Table 1 should be
met, without exception, to ensure the long-term reliability of the display. The video
inputs, shown in Table 2, pass from the video source to the display through the
DC/DC converter.
Table 1. Video Input Voltage Requirements
Description Min. Max. Units
Maximum input voltage -- 5.5 V
Low-level input voltage (VIL) -0.3 0.9 V
High-level input voltage (VIH) 3.7 5.0 V
Low-level input current (IIL) -- -0.4 mA
High-level input current (IIH) -- 10 µA
Output high voltage (@ Ioh=0.4mA) 2.4 -- V
Output low voltage (@ Iol=2.1mA) -- 0.4 V
All inputs are CMOS with 130 Ω series resistors, except VS, which is 1K Ω.
Connector
The EL552.256-Q2 display package includes a DC/DC converter and a cable for
connecting it to the display. As shown in Figure 2, the display is connected to the
converter (Connector J1 to J3) with the supplied cable, then the converter has a
connector (Connector J0) for interfacing with the customer design.
Connectors
JO T&B Ansley 609-1630
J3 T&B Ansley 609-2630
J1 T&B Ansley 609-2030
Figure 2. Connectors
Both the J0 and the J3 are low-profile male PCB header connectors with dual-row
contacts on 0.00" centers. Video signals and +12 V DC power are connected to
Connector J0 on the DC/DC through a 16-pin T & B Ansley connector, part
number 609-1630 or equivalent with the pin assignment shown in Table 2.
Table 2. Connector P0 Pinouts
Pin Function Pin Function
1VH (+12V) 2VH (+12V)
3VL (+5V) 4VL (+5V)
5VID26VID1
7Ground 8Ground
9VS 10 Ground
11 HS 12 Ground
13 VCLK 14 Ground
15 VID016 VID3