Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1996-09-23
1998-03-24
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327544, 327538, 327558, G05F 110
Patent
active
057317364
ABSTRACT:
A voltage bias generating circuit is disclosed which comprises a voltage-controlled charge pump which operates at a high frequency relative to audio frequencies wherein a plurality of low pass filters are used to prevent the introduction of noise and distortion of audio signals being amplified through a digital potentiometer or resistor array.
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Dallas Semiconductor Corporation, System Extension Data Book, "DS1802, Dual Audio Taper Potentiometer with Pushbutton Control," 1994-1995, pp. 217-230 .
Callahan Timothy P.
Dallas Semiconductor
Kim Jung Ho
LandOfFree
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