Double Interpolation for Digital-to-Analog Conversion
- 1 January 1986
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Communications
- Vol. 34 (1) , 77-81
- https://doi.org/10.1109/tcom.1986.1096428
Abstract
Interpolative digital-to-analog converters generate an output that has only a few analog levels. They provide fine resolution by oscillating rapidly between these levels in such a manner that the average output represents the value of the applied code. Here we describe an improved method of interpolating that results in reduced noise in the signal band. A theory of the interpolation, confirmed by experiments, demonstrates that switching between only two levels at 1.3 mHz could provide 16 bit resolution for telephone signals.Keywords
This publication has 4 references indexed in Scilit:
- A Use of Double Integration in Sigma Delta ModulationIEEE Transactions on Communications, 1985
- The Structure of Quantization Noise from Sigma-Delta ModulationIEEE Transactions on Communications, 1981
- A Voiceband Codec with Digital FilteringIEEE Transactions on Communications, 1981
- Interpolative Digital-to-Analog ConvertersIEEE Transactions on Communications, 1974