Class AB differential mixer
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United States of America Patent
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Apr 19, 2005
Grant Date -
Aug 21, 2003
app pub date -
Feb 14, 2003
filing date -
Feb 15, 2002
priority date (Note) -
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Abstract
A differential mixer including at least two input/output stages, each stage including two identical branches, each branch of one of the two stages including at least two bipolar transistors the bases of which define a first pair of input/output terminals of the stage and are connected to a same D.C. current source individually by a respective isolating resistor; the collectors of which define a second pair of input/output terminals of the stage which forms a pair of input/output terminals of another stage of the mixer; and the emitters of which are individually connected to a low voltage reference line by a respective degenerative impedance.
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