DM368 video o/p

Hitesh Gambhava

Prodigy 205 points

Other Parts Discussed in Thread: THS8135

Hello,

Does DM368 support generic video o/p like PC graphics resolution or VESA standard o/p?

Thanks

Hitesh

over 14 years ago

0 Paul.Yin over 14 years ago

TI__Genius 14405 points

Hi,

It should as it is very flexible, however it is up to 74.25MHz. What resolution / frame rate are you thinking about?

By o/p, you mean output right?

0 Steve Clynes over 14 years ago

TI__Mastermind 43875 points

Hitesh,

As Paul mentions the DM can output 24 bit RGB data which can then be used to drive many different types of video devices up to 74.25MHz, which is high enough to support 720p60 or 1080i60, along with many other VESA modes.

Have a look at the following Wiki page which was written for OMAP, but which is also very much applicable to the DM devices.

http://processors.wiki.ti.com/index.php/Display_Subsystem#OMAP3_Display_Sub-system_Connectivity

The DM devices support interlaced output I believe, so can also include the FID signal.

For analog RGB you could also use the THS8135 video DAC.

BR,

Steve

0 Hitesh Gambhava over 14 years ago in reply to Paul.Yin

Prodigy 205 points

Thanks Paul

yes o/p means output.

I am thinking about 1024X768@60fps......

Hitesh

0 Hitesh Gambhava over 14 years ago in reply to Steve Clynes

Prodigy 205 points

Hello steve,

For VGA (VESA ) support i have to use video DAC with HSYNC and VSYNC output.

I think THS8135 doesn't have sync output.

BR,

Hitesh

0 Steve Clynes over 14 years ago in reply to Hitesh Gambhava

TI__Mastermind 43875 points

The syncs are digital signals, so you need to simply level shift the signals coming from the processor, something like this...

You would connect the 8 color bits to the upper 8 inputs of the THS and connect the lowest 2 bits to '0'

BR,

Steve

0 Paul.Yin over 14 years ago in reply to Hitesh Gambhava

TI__Genius 14405 points

Hitesh Gambhava said:

I am thinking about 1024X768@60fps......

You are OK.

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DM368 video o/p