DSP中的DAC.pdf

嵌入式硬件设计参考系列之DSP中的DAC.pdf
DACS FOR DSP APPLICATIONS




SECTION 4

DACs FOR DSP APPLICATIONS


I DAC Structures

I Low Distortion DAC Architectures

I DAC Logic

I Sigma-Delta DACs

I Direct Digital Synthesis (DDS)




4.a
DACS FOR DSP APPLICATIONS




4.b
 DACS FOR DSP APPLICATIONS


SECTION 4

DACs FOR DSP APPLICATIONS
Walt Kester, James Bryant

DAC STRUCTURES
The most commonly used DAC structures (other than a simple 1-bit DAC based on a
single switch used with a reference voltage) are binary weighted DACs or ladder
networks, but these, though relatively simple in structure, require quite complex
analysis. We will start by examining one of the simplest structures of