Hi,
we are developing a camera with the chip set DS90UB913 and DS90UB914. The pixel clock from the image sensor is 12 MHz, so we want to use the 12 bit low frequency mode of the devices. There is a mode pin at the DS90UB914 which is put to GND in our design. This should indicate the right mode to the device at power up as mentioned in the datasheet.
But after power up, if we read the mode register (read only), the device is in 10 bit high speed mode.
The second issue is the clock output of the deserializer DS90UB914. We transmit the video data with 12 MHz from the sensor, but the deserializer has only 6 MHz clock output. The device devides the clock internally which we can't accept.
I would be glad if anyone could help me.
Best regards,
Matthias