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 |
1 | VH (+12V) | 2 | VH (+12V) |
3 | VL (+5V) | 4 | VL (+5V) |
5 | VID2 | 6 | VID1 |
7 | Ground | 8 | Ground |
9 | VS | 10 | Ground |
11 | HS | 12 | Ground |
13 | VCLK | 14 | Ground |
15 | VID0 | 16 | VID3 |
EL552.256-Q2 Operations Manual (OM410-00) | 5 |
