A circuit that changes the word rate of pulse code modulated signals
Abstract
In this paper a circuit that accepts pulse code modulated signals sampled at about 8 kHz and resamples them at any desired rate up to 512 kHz is described. When the sampling satisfies Nyquist's criterion, the distortion introduced is at least 35 dB below the signal level. The circuit uses a digital low-pass filter to interpolate sample values, and it may be integrated as about 2500 gates on a 5 sq mm chip.
- Publication:
-
AT T Technical Journal
- Pub Date:
- April 1983
- Bibcode:
- 1983ATTTJ..62.1161C
- Keywords:
-
- Digital Filters;
- Network Analysis;
- Pulse Code Modulation;
- Signal Processing;
- Telephony;
- Word Processing;
- Bandpass Filters;
- Block Diagrams;
- Data Sampling;
- Words (Language);
- Communications and Radar