White Paper: LVDS Flat Panel Display Interface on Intel Desktop Boards

White Paper: LVDS on Intel Desktop Boards

2.2.1 Backlight Inverter Power Connector Pinout

Refer to Table 4 for backlight inverter power header pinout definition.

Table 4. Backlight Inverter Power Header Pinout on

Select Intel Desktop Boards

Pin Signal Name Description

1 GND Ground

2 GND Ground

3 5 V/12 V Inverter power

4 5 V/12 V Inverter power

5 INV_RATING Inverter rating

6 BKLT_PWM Backlight PWM

7 BKLT_EN Backlight enable

2.2.2 Backlight Inverter Power Cable Recommendation

It is recommended that the cable used for connecting the onboard 7-pin backlight

inverter power header to the connector on the inverter board supports the current

rating per wire as required by the inverter board (up to 2 A per pin).

2.2.3 Backlight Inverter Power Voltage Selection

The board provides configurable voltage levels for powering diverse backlight inverter

boards.

Backlight inverter power header pins 3-4 can supply a voltage level of 5 V (default) or

12 V by properly setting the backlight inverter power voltage selection jumper,

comprised of a 1 x 3, 2.54-mm pitch red header with a black jumper, with 3 A rating

per pin.

Table 5 def

nes the configuration options for the backlight inverter power voltage

selection jumper.

Table 5. Backlight Inverter Power Voltage Selection Jumper Configuration on

Select Intel Desktop Boards

Voltage Jumper Setting Configuration

5 V 1 and 2

Jumper position for 5 V (default)

12 V 3 and 2

Jumper position for 12 V