Toward high-resolution RFDAC
The system design perspective*
Abstract
With the idea all-digital orthogonal I/Q combination verified, the next logical step is to add necessary bits to improve the resolution of our RFDAC. This chapter discusses the required resolution and sampling rate from a system perspective.
Keywords
Class-E power amplifier (PA); Quantization noise; Resolution; Dynamic range; Vector modulator
The all-digital orthogonal I/Q modulator concept of Chapter 7 [116–118] substantiates that the direct orthogonal summation of the in-phase and quadrature digital RF vectors can generate the composite IQ RF vectors. According to Chapter 7, a 2 × 3-bit static ...
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