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DAC3174 Input Data Single Channel SDR Mode

Other Parts Discussed in Thread: DAC3174

Hallo,


Could you please let me know how to use the DAC3174 with Input Data Single Channel SDR Mode as Figure 26 of the data sheet?
I cannot find the way of the setting to Input Data Single Channel SDR Mode in the data sheet, and neither the registers for “ Single Channel setting “ nor “ SDR Mode setting “.

Best Regards,
Kazu Ogawa

  • Hi,

    You would set the device in single channel DAC mode setting bit D14 of Config0 to '0' to turn off channel B.   Now only channel A is being used.  This bit is called dual_ena and the default is a '1' to enable the dual channel.

    Keep the device in fullword mode by leaving bit D13 of Config1 as the default '1' so that the device is still in fullword mode.  This makes the 14 data bits be on the 14 LVDS data pairs as in figure 26 - otherwise the data would still be in DDR format on 7 of the LVDS data pairs.

    This should put the device in SDR mode as shown in Figure26.

    Regards,

    Richard P.