HI

   当用SPI配置LTC2017或者LTC2108的时候需要注意什么？

   因为我用fpga配置以上两个芯片，总是不能成功，而相同的主程序，配置ad9520，ad9510，ad9858等都可以。这些程序里面我只修改了相关的寄存器数量和相关寄存器内容，以下是寄存器的内容：

assign data95[0]=16'b0000_0000_0000_0000;
assign data95[1]=16'b0000_0000_1000_0000;
assign data95[2]=16'b00…

hi, I am using the LTC2107, I hope to configure the ltc2017 by SPI using FPGA and Verilog. In PCB connecting PAR/SER pin to ground.  

     same verilog code  can be program the AD9510,AD9858,AD9520 except the register number and register content which correspond…

In datasheet LTC2107 ADC 2-Tone IMD Distortion is given with PGA = 0 condition only, Whereas we need the IMD distortion levels with PGA = 1 condition around frequency 141 to 170MHz input frequency at -7dBFS.

This is because we need the SFDR spec more…

I have some question on determining the IF sampling capability of ADC's :

I've checked the ADCs selection table for ADC > 10MSPS

• some ADC datasheets explicitly mention that the device is suitable for IF sampling, i.e : AD9461, LTC2195, ..…