Matrix circuit of FM stereo multiplex demodulation circuit

Details Matrix circuit of FM stereo multiplex demodulation circuit Matrix circuit of FM stereo multiplex demodulation circuit

1990-03-19

1992-04-21

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307270, 307490, 330288, H03K 1762, H03K 500

Patent

active

051071347

ABSTRACT:
A matrix circuit includes a first resistor having one end connected to receive a current signal and another end connected to a first output node, a second resistor having one end connected to the one end of said first resistor, a first bipolar transistor having a first collector connected to the another end of said second resistor, a first emitter connected to a circuit ground and a first base connected to said first collector, and a second bipolar transistor having a second collector connected to a second output node, a second emitter connected to said circuit ground and a second base connected to said first base.

REFERENCES:
patent: 4049977 (1977-09-01), Radovsky
patent: 4766396 (1988-08-01), Taya et al.
patent: 4814724 (1989-03-01), Tanigawa
The Art of Electronics, Horowitz, Paul and Hill, Winfield, Cambridge University Press, 1980, pp. 88-91.
The Linear Circuits Data Book, Texas Instruments, Nov. 1983, pp. 5-53 through 5-57.
Operational Amplifier: Theory and Practices, James K. Roberge, John Wiley & Sons, 1975, pp. 392-396.

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