The S-D DACs uses less analog circuitry at the expense of more digital circuitry compared to the Nyquist rate DACs. This is done using the concepts of oversampling and noise shaping. The figure below ...

Figure 2 shows a block diagram of the new Avago ACPL-798J externally clocked optically isolated Sigma-Delta Modulator with LVDS interface. The LVDS interface furthers improves the connection between ...

Two important structural properties of block M(=2/sup '/)-ary PSK modulation codes, linear structure and phase symmetry, are investigated. An M-ary modulation code is first represented as a code with ...

Given a multilevel block modulation code C with no interdependency among the binary component codes, the proposed method gives a multilevel block modulation code C' that has the same rate as C, a ...