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DS90C385AMTX/NOPB & DS90CF386MTDX/NOPB

Eric Strohbehn
Intellectual 360 points
Other Parts Discussed in Thread: DS90C3201, SN65LVDS822

Hi,

The datasheet says the transmitter runs from 18 to 87.5 MHz and the receiver runs from 20 to 85 MHz.  We already have the transmitter built in and drive an SVGA display at ~30 MHz.  This works fine.  Now we have to drive a 320x240 pixel display at 6 MHz.  Contrary to the spec, can we go down to 6 MHz and operate the chip satisfactorily?  If not, do you have a similar alternative chip which goes down to 6 MHz. 

Thanks,

Eric

 

  • 0
    TI__Mastermind 29635 points

    Hi Eric,

    Sorry for the delayed response. I am unable to find a transmitter/receiver pair that is spec'd down to 6 MHz.

    Since there are no devices in the DS product line that is spec'd below 8 MHz, I searched through some of the SN products for a device that works in this range. The closest I could find is the SN65LVDS822, a receiver with 5 LVDS pair inputs whose clock range is 4 - 54 MHz. Unfortunately, there does not appear to be a Flat-link transmitter that operates below 8 MHz to match. The closest I can find is the DS90C3201, a transmitter that runs down to 8 MHz and outputs 10 LVDS pairs.

    Thanks,

    Michael