Video interfaces – ADLINK LittleBoard 735 User Manual

Page 41

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Chapter 3

Hardware

LittleBoard 735

Reference Manual

35

Note: The shaded table cells denote power or ground.

Video Interfaces

The 82945GSE chip provides the graphics control and video signals for traditional glass CRT monitors and

LCD flat panel displays. The chip features are listed below:

VGA features:

Support for an integrated 400-MHz, 24-bit RAMDAC to drive a progressive scan analog monitor and
outputs to three, 8-bit DACs that provide the R, G, and B signals to the monitor

Support for resolutions up to QXGA (2048x1536)

Support for a maximum allowable video frame buffer size of 224MB UMA (Unified Memory
Architecture)

LVDS Flat Panel features:

Support for an integrated dual channel LFP Transmitter interface

Support for LVDS LCD panel resolutions up to UXGA(1600X1200)

Support for a maximum pixel format of 18 bpp with SSC supported frequency range from 25 MHz to
112 MHz (single channel/dual channel)

TV Out features:

Support for three integrated 10-bit DACS

Support for overscaling

Provide NTSC/PAL

Provide component, s-video, and composite output interfaces

Support HDTV: 480p/720p/1080i/1080p

11

MIC_GND

Microphone Audio ground

12

MIC2

Microphone In signal 2 or right channel

13

MIC_REF

Microphone reference signal

14

NC/KEY

Not Connected - Key

15

PHONE_IN

Phone signal In

16

PHONE_GND

Phone Audio ground

17

MONO_OUT

Monaural signal Out

18

MONO_GND

Monaural Audio ground

19

+AOUT_L

+ Audio Out signal Left channel

20

-AOUT_L

- Audio Out Left ground

21

+AOUT_R

+ Audio Out signal Right channel

22

-AOUT_R

- Audio Out Right ground

23

GND

Audio Ground (tied to all audio grounds)

24

HP_L

Headphone signal Left channel

25

HP_R

Headphone signal Right channel

26

NC

Not Connected (Headphone In)

Table 3-13. Audio Interface Pin Signals (J9) (Continued)

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