Method and apparatus for sampling quadrature signals

Details Method and apparatus for sampling quadrature signals Method and apparatus for sampling quadrature signals

1995-10-30

1997-12-30

Hoff, Marc S.

Coded data generation or conversion

Sample and hold

341155, H03M 100

Patent

active

057035830

ABSTRACT:
Each signal channel has a 12 bit A/D converter which begins conversion after each read cycle. A 24 bit digital signal processor is connected by a 24 bit data bus to the converters such that one converter supplies data to the upper data lines and the other supplies data to the lower data lines of the bus. Both converters are simultaneously read into the processor, the data being combined into one word. The processor then splits the word into separate data for each channel by multiply and move operations.

REFERENCES:
patent: 4117409 (1978-09-01), O'Brien
patent: 5045777 (1991-09-01), Itagaki
patent: 5293114 (1994-03-01), McCormick et al.
patent: 5323103 (1994-06-01), Choate et al.
Evans et al., "Basic Electronics Technology," Texas Instruments Information Publishing Center, pp. 332-333, 1985.
TMS34010 User's Guide, Texas Instruments, Inc., pp. 10-1 to 10-19, 1986.

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