Delta sigma analog-to-digital converter with temporally interlea

Details Delta sigma analog-to-digital converter with temporally interlea Delta sigma analog-to-digital converter with temporally interlea

1995-02-24

1997-04-15

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

341155, H03M 300

Patent

active

056214081

ABSTRACT:
A delta sigma converter according to the present invention replaces the quantizer of a conventional delta sigma converter, such as a comparator followed by a latch, with N quantizers, each operating at a reduced frequency f.sub.s /N and phase offset from each other by 2.pi./N. The quantized outputs are assembled in accordance with a control signal to produce a feedback signal at a frequency f.sub.s and the feedback signal is applied to a subtractor of the delta sigma converter.

REFERENCES:
patent: 4888587 (1989-12-01), Kuraishi
patent: 5030954 (1991-07-01), Ribner
patent: 5329282 (1994-07-01), Jackson
Research Disclosure (Disclosed Anonymously) Decision Switch for a Delta or Sigma-Delta Modulator, No. 325, May 1991, pp. 367-368.

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