Kontron KT690-mITX (BGA) - dual core Manual de usuario descargar pdf (Pagina 35)

KT690 Family

KTD-00738-J

Public

User Manual

Date 2012-06-01

Page

4.4.3 LVDS Flat Panel Connector (LVDS)

Note

Type

Signal

Type

Note

Max. 0.5A

PWR

+12V

PWR

Max. 0.5A

PWR

+12V

PWR

Max. 0.5A

PWR

+12V

GND

PWR

Max. 0.5A

PWR

+5V

GND

PWR

Max. 0.5A

PWR

LCDVCC

PWR

Max. 0.5A

2K2Ω, 3.3V

DDC CLK

DDC DATA

2K2Ω, 3.3V

3.3V level

BKLTCTL

VDD ENABLE

3.3V level

BKLTEN#

GND

PWR

Max. 0.5A

LVDS

LVDS A0-

LVDS A0+

LVDS

LVDS A1-

LVDS A1+

LVDS

LVDS A2-

LVDS A2+

LVDS

LVDS ACLK-

LVDS ACLK+

LVDS

LVDS A3-

LVDS A3+

LVDS

Max. 0.5A

PWR

GND

PWR

Max. 0.5A

LVDS

LVDS B0-

LVDS B0+

LVDS

LVDS B1-

LVDS B1+

LVDS

LVDS B2-

LVDS B2+

LVDS

LVDS BCLK-

LVDS BCLK+

LVDS

LVDS B3-

LVDS B3+

LVDS

Max. 0.5A

PWR

GND

PWR

Max. 0.5A

Note 1: The KT690 board support dual channel, 24bit OpenLDI/ SPWG panels on the LVDS interface

Signal Description – LVDS Flat Panel Connector:

Signal Description

LVDS A0..A3 LVDS A Channel data

LVDS ACLK LVDS A Channel clock

LVDS B0..B3 LVDS B Channel data

LVDS BCLK LVDS B Channel clock

BKLTCTL Backlight control (1), PWM signal to implement voltage in the range 0-3.3V

BKLTEN# Backlight Enable signal (active low) (2)

VDD ENABLE Output Display Enable.

LCDVCC VCC supply to the flat panel. This supply includes power-on/off sequencing.

The flat panel supply may be either 5V DC or 3.3V DC depending on the CMOS

configuration. Maximum load is 1A at both voltages.

DDC CLK DDC Channel Clock

DDC DATA DDC Channel Data

Note 1) Windows API will be available to operate the BKLTCTL signal. Some Inverters has a limited voltage

range 0- 2.5V for this signal: If voltage is > 2.5V the Inverter might latch up. Some Inverters

generates noise to the BKLTCTL signal resulting in making the lvds transmision fail (corrupted

picture on the display). By adding 1K Ohm resistor in series with this signal and mounted in the

Inverter end of the cable kit the noise is limited and picture is stabil.

Note 2) If the Backlight Enable is required to be active high then make the BIOS Chipset setting: Backlight

Signal Inversion = Enabled.

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Kontron KT690-mITX (BGA) - dual core Manual de usuario Pagina 35

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