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resources:eval:dpg:ad9119-mix-ebz [15 Oct 2012 17:04] – removing under construction tag Dan Fagueresources:eval:dpg:ad9119-mix-ebz [02 Nov 2012 20:38] (current) – [Mix-Mode Operation] Dan Fague
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 {{:resources:eval:dpg:ad9129:bench_setup_9119_evb.png?350 |}}  {{:resources:eval:dpg:ad9129:bench_setup_9119_evb.png?350 |}} 
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 {{:resources:eval:dpg:ad9129:figure2_9129-MIX-EBZ.png?400 |}}  {{:resources:eval:dpg:ad9129:figure2_9129-MIX-EBZ.png?400 |}} 
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 Figure 1 - Block diagram of the AD9119 lab bench set-up Figure 1 - Block diagram of the AD9119 lab bench set-up
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 Figure 2 - Top view of AD9119-MIX-EBZ Evaluation Board (uses the AD9129 EVB) Figure 2 - Top view of AD9119-MIX-EBZ Evaluation Board (uses the AD9129 EVB)
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 When using mix-mode and targeting a signal to the second Nyquist zone, it is important to remember that the center frequency chosen in the DPG window is the offset from the DACCLK sample frequency, not 0 Hz. For example, to place the carrier at 1982.5 MHz with a 2.4576 GHz DACCLK as in Figure 12, program the DPG Downloader center frequency to 475 MHz and enable mix-mode. Figure 12 shows the IMD performance of several different DAC output currents and the loss in output power expected with lower currents.  When using mix-mode and targeting a signal to the second Nyquist zone, it is important to remember that the center frequency chosen in the DPG window is the offset from the DACCLK sample frequency, not 0 Hz. For example, to place the carrier at 1982.5 MHz with a 2.4576 GHz DACCLK as in Figure 12, program the DPG Downloader center frequency to 475 MHz and enable mix-mode. Figure 12 shows the IMD performance of several different DAC output currents and the loss in output power expected with lower currents. 
  
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resources/eval/dpg/ad9119-mix-ebz.txt · Last modified: 02 Nov 2012 20:38 by Dan Fague

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