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DS90UB913 application ??

Dear Sir

Good days,

May we check with you DS90UB913 receive data from CMOS sensor is "raw data" or "YUV" data format?

 if  "DS90UB913/4" have Pspic Model and gerber file?

                                           Best regards,

                                                       Bogey

 

  • Bogey

    The DS90UB913/914 are a serializer/deserializer pair that does no processing of the data being transported, therefore they can transport RAW data, YUV or any other format which is in 10 or 12 bit words.

    There is an IBIS model of the device available on TI.COM at http://www.ti.com/litv/zip/snlm122

    There is an Evaluation Kit available for the DS90UB913/914 with information available at: http://www.ti.com/tool/serdesub-913ros

    The documentation for the evaluation kit includes schematics and the PCB layout.

     

  • Hello Bogey,

    The user guide, schematic, and gerber images for these EVMs are undergoing updates to improve clarity and graphic quality. I will alert my colleague to this thread and he may be able to provide clearer images.

  • Dear Sir

    Good days,

    May we know DS90ub914A mode pin function?

    Due to from 913/914 EVB, the 914 mode pin is connect to 1.8V and use resistor to diver voltage.

    my customer use 914 mode pin and connect to 3.3V, there 913/914 also lock but can't be control 913 regster.

    So, Here want to know what is 914 mode pin fuction?

                                                          Best regards,

                                                                               Bogey

  • Hi Bogey,

    The 914A deserializer mode pin does not support a 3.3V supply voltage, only 1.8V. Also, another criterion is that this supply voltage must not be VDD_IO (which can be sourced at either 1.8V or 3.3V) and instead should be its own independent source voltage of 1.8V.

    If the customer is truly having issues sourcing the 1.8V to the mode pin, then you can try 3.3V with the R_Mode resistance values below. However, keep in mind that this is unsupported behavior with the part:

    12-bit low-frequency mode   ==> R_Mode = 0 kOhms

    12-bit high-frequency mode  ==> R_Mode ~ 1.4 kOhms

    10-bit mode                           ==> R_Mode ~ 4.0 KOhms

    Regards,

    Sean

  • Hi Sean

    Good days,

    thanks for your reply,

    may we check with you what is Auto ACK function and how to set up it?

                                                                Best regards,

                                                                              Bogey

  • Hi Bogey,

    AUTO ACK is simply the automatic acknowledgement of an I2C write from serializer to deserializer (or another slave). What this means is that no acknowledgement bit is sent to the serializer from the slave (i.e. deserializer) once it receives a byte of information which could be the slave address, register address, or data byte.  This can improve throughput on the SDA line but also prevent the user from seeing streaming errors if they occur.

    In order to turn on AUTO ACK, enable bit 4 in 0x03 on the 913 and enable bit 2 in 0x03 on the 914.

    -Sean