ZHCSCX0D January 2014 – October 2017 ADC12J1600 , ADC12J2700
PRODUCTION DATA.
The DDC contains a complex numerically-controlled oscillator and a complex mixer. The oscillator generates a complex exponential sequence shown in Equation 2.
The frequency (ω) is specified by the a 32-bit register setting. The complex exponential sequence is multiplied by the real input from the ADC to mix the desired carrier down to 0 Hz.