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DS90UB948-Q1: pattern test for 2396*1094*60fps

Betty Guo
Expert 7300 points
Part Number: DS90UB948-Q1


Hi team,

one question about DS90UB948 pattern.does the 947/948 pattern support the 2396*1094*60fps and below LCD spec?

I ask this is becasue customer use 948 pattern for 2396*1094*60fps resolution LCD , found the display jitter.

1. does the 974/948 support dual pixel 2396*1094*60fps LCD?

2. Can the 948 pattern generate this resolution video timing to help test this LCD?  I found the OSC of 948 is 140M

3. The 947/941/949 OSC is 200MHz/800MHz, can we use M/N divider to generate 2396*1094*60fps video timing to help test this LCD? if yes, how to set this?

thank you

  • 0
    TI__Guru** 103215 points

    Hello Betty,

    Yes, 948 can support this resolution but not with internal clock PATGEN as you say since the PCLK is too low. If you generate the pattern from the 947 side it can work by using the 800MHz oscillator option. You can find details on how to configure it here: https://www.ti.com/lit/pdf/snla132

    Or you can use the Analog LaunchPad GUI to configure the pattern through graphical interface

    Best Regards,

    Casey