SN65DSI84 pixel frequency

NAOKI AOYAMA

Guru 11215 points

Other Parts Discussed in Thread: SN65DSI84

Hello,

Our customer uses the SN65DSI84, stream Video signal, 1920x1080i with

NTSC(59.939Hz), PAL(50Hz), FHD(60Hz) format.

The pixel frequency of these format are 74.175MHz and 74.25MHz.

But he wants to operate by only 74.25MHz.

Is it possible to operate the NTSC format by 74.25MHz clk?

Regards,

Naoki Aoyama

over 9 years ago

0 Joel Jimenez0 over 9 years ago

TI__Mastermind 18655 points

Hello,

Yes, the DSI84 should work at such frame rate.

Regards,
Joel

0 NAOKI AOYAMA over 9 years ago in reply to Joel Jimenez0

Guru 11215 points

Hi Joel,

Thank you for your fast reply.

I have a question.
In case of transmission NTSC(59.939Hz) signal with 74.25MHz,
there will be no data frame, once to 1001 frames.
Does it need a dummy frame?

Regards,
Naoki Aoyama

0 Joel Jimenez0 over 9 years ago in reply to NAOKI AOYAMA

TI__Mastermind 18655 points

Hello Naoki Aoyama,
Could you please provide more details on your scenario and question above?
Thanks

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SN65DSI84 pixel frequency