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DS90UB913 and DS90UB914 connection issue

Chen Bogey8
Mastermind 9990 points


Dear Sir

Good days,

May we check with you if DS90U913 and DS90UB914 connection need any initial action?

And we have some issue as beow:

Sensor:OV2710

Set up in Pclk mode,  From 914Q send I2C command to 913Q to control sensor.

but during set up sensor, Pclk will unstable and will cause 914Q and 913Q can't lock.

So sensor can't finish initial setting.

May we check if other set up way that doesn't use pclk mode when sensor initial?

Or what is correct 13Q and 14Q initial setting?

                                                      Best regards,

                                                                  Bogey

 

  • 0
    TI__Expert 7395 points

    Hi Bogey,

    When connecting DS90UB913/913 to Omnivision sensors, we recommend using the external oscillator mode as shown in datasheet Figure 24. The external osc mode provides improved input jitter tolerance from the imager.

    Dac Tran

    SVA APPS

  • 0 in reply to Dac Tran
    Mastermind 9990 points

    Dear Sir

    Good days,

    May we check if you have DS90ub913Q/914Q hardware check list?

    and another question is 913/914 pin set up. is any clear voltage we need set up?(due to spec set up and EVB set up can't meet)

    and we have measure some condition as below waveform, may you pls

    help check is it normal?

     

    914 input I2C CLK,SDA is LOW.

    ch1:914D+ CH2:914D-

                                                         Best regards,

                                                                           Bogey