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Hi.I have problem with ad9957 PLL loop filter.I have drive this IC without pll in each mode but I can't drive this IC with pLL.I have used the Excel file from Analog Device to design PLL loop filter and PLL lock detect pin always stay true,but my output has some SFDR .can anyone help me about...
Hi! i am writing a program for an ADC.I want to use the spi interface.I'm really confused with programming registers.I would appriciate if anyone could help me:-(
Hi FvM
I have checked my sending data line.In datasheet it doesn't clarify QDUC signals and my big concern is about the output signal whether we must have both signals(I mean upconvert and downconvert signals) or just one??
tnx alot
[Moved]Quadrature upconverting by AD9957
Hi
I've been trying for a while now to run the AD9957 in QDUC mode.I have run it in DDS and DAC mode but when I run QDUC mode I have problem since I have an image .for example if my DDS frequency is 100 Mhz and I=Cos(wt) & Q = sin( wt) , w=30Mhz then I...
Dear friends,
I'm having problem running AD9957 in QDUC mode.I have run the DDS and DAC mode but when I switch to QDUC mode I have a problem with my signal image.my signal frequency upconvert correctly but there is an image signal attach to it.I'm really confused with phase accumulator and CCI...
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