Rectangular-to-sine wave converter

Details Rectangular-to-sine wave converter Rectangular-to-sine wave converter

1994-01-25

1995-04-18

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Generating sinusoidal output

327552, 327257, 327114, 327317, H03K 500, H03K 513, H03L 700, H03B 1900

Patent

active

054081351

ABSTRACT:
A rectangular-to-sine wave converter circuit (10) is provided that comprises a flip-flop (12) that provides for a square wave and an inverse square wave circuit with fifty percent duty cycles. Each of the square wave signals is passed through a multi-stage low pass filter. The stages of the low pass filters are separated by buffers (26) and (32). The common mode voltage of the output signals at output nodes (40) and (44) are adjusted with respect to an arbitrary bias voltage V.sub.bias by using bias resistors (42) and (68).

REFERENCES:
patent: 3649923 (1972-03-01), Venturini
patent: 3671871 (1972-06-01), Malm
patent: 3982189 (1976-09-01), Brooks et al.
patent: 4250455 (1981-02-01), Davis
patent: 5121069 (1992-06-01), Burns et al.
Declaration of Kerry Glover of Texas Instruments Incorporated dated Feb. 16, 1994.

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