DS90UB928Q-Q1: Usage of a display with higher resolution (1920x360 instead of 1280x720) but lower Dotclock (51.52MHz instead of 85MHz).

Markus Schweizer

Part Number: DS90UB928Q-Q1
Other Parts Discussed in Thread: DS90UB928Q,

Hello,

for DS90UB928Q a resolution of 1280x720 at a DotClock of max. 85MHz is mentioned in the specifications. At the moment we use a display with 1280x800 and 71MHz DotClock, so the resolution is s little bit higher, but the product of resolution and dotclock (1280x800x71MHz) is lower than 1280x720x85MHz. It works good with our display.

Our customer now wants to use a different display with a resolution of 1920x360, but a lower DotClock of 51.52Mhz (typ). Datasheet is attached.

Is it possible to use this display with the DS90UB928Q? As a Transmitter the DS90UB927Q will be used.

Thank You very much.

Kind regards

Markus Schweizer

SPEC_CLAA276FP01XN_V0.0_Beck GmHb & Co_160202.pdf

over 8 years ago

0 Palaniappan Manickam over 8 years ago

TI__Genius 10475 points

Hi,
Just acknowledging that we received your request and it is assigned to the appropriate Apps person for review and to provide you a response.

0 Liam Keese over 8 years ago in reply to Palaniappan Manickam

TI__Genius 12705 points

Yes, this PCLK range of the display is within operating range of the DS90UB928Q-Q1. The required PCLK also depends on the blanking intervals selected, so there is a range of PCLK that would support a specific Horizontal and Vertical resolution. This is shown in the display datasheet also.

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DS90UB928Q-Q1: Usage of a display with higher resolution (1920x360 instead of 1280x720) but lower Dotclock (51.52MHz instead of 85MHz).