Setting AD9102 Output Amplitude

Question

How do you set the value of the gain register to determine the output current amplitude? I assume the current can't go higher than the fullscale value of 32 * Vref/Rset. If so, what is the expression for output sine wave current amplitude using Ifs and the values in the DAC gain and offset registers? Thanks

ADIApproved · Accepted Answer

Hi Jim - 
 DAC Gain and DAC offset are applied to the DAC input signal (stream of samples). IOUTFS = 32*Vref/Rset is the maximum DAC core current output. The DAC core current input = DGAIN * Waveform_Generator_Data + DOFFSET. 
 Thanks, 
 Larry)

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Setting AD9102 Output Amplitude