Delta-Sigma modulator with switch capacitor implementation

Details Delta-Sigma modulator with switch capacitor implementation Delta-Sigma modulator with switch capacitor implementation

1982-01-20

1984-03-27

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

340347NT, 340347M, 375 28, H03K 1320

Patent

active

044397569

ABSTRACT:
A Delta-Sigma .DELTA..SIGMA. modulator for one-bit analog to digital conversion of a signal, such as a telephone voice channel switch to digital form is disclosed. The circuit incorporates integration operative as low-pass filtering. The voice signal is sampled at a rate high compared to the highest voice channel frequency component. Sampled instantaneous signal values are integrated, re-sampled and again integrated to reduce encoding noise. Finally, a bi-level sense identifying circuit links the second integrator output to a D type flip-flop providing the one-bit encoded output.
The sampling and integrator control is effected by switching in a capacitor charge shifting arrangement under clock control and feedback is applied as a capacitor switching program modifications.

REFERENCES:
patent: 4009475 (1977-02-01), DeFreitas
patent: 4270027 (1981-05-01), Agrawal et al.
The Engineering Staff of Analog Devices, Inc., ANALOG-DIGITAL CONVERSION HANDBOOK, 6/72, pp. I-6 and 7; III-78 to 81.

Affiliated with

Also associated with

Rating

Delta-Sigma modulator with switch capacitor implementation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Delta-Sigma modulator with switch capacitor implementation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Delta-Sigma modulator with switch capacitor implementation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1758187