On the Design of All-Digital Components for Low-Speed and High-Speed Modems Using MOS Technology
| Authors: | W.K. Giloi, K.-D. Kammeyer |
| Abstract: | Discusses ways to realize at reasonable costs purely digital low-speed and high-speed modems. In the first case, very simple digital filter configurations with very coarsely quantized coefficients are used in the receiver, whereas the transmitter consists of a counter and a sine-table stores in a ROM. In high-speed modems, the modulator uses the elementary function synthesis method with the provision that only increments have to be stored, requiring a very small ROM capacity. The receiver filter uses a novel scheme in which the function given by the filter difference equation is generated by a sequential algorithm that requires only a ROM of small storage capacity and an adder. For any arbitrary filter with a frequency band small compared with the operating speed of modern MOS components, this approach to digital filter realization may be of general interest. |
| Document type: | Conference Paper |
| Publication: | Minneapolis, MN, USA, 17. - 19. June 1974 |
| Conference: | IEEE International Conference on Communications (ICC) |
| Pages: | 1-5 |
| Volume: | 39C |
| Index: | 173 |
| Files: | BibTEX |
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