Ultra low-power integrated circuit for pseudo-baseband down-conv

Details Ultra low-power integrated circuit for pseudo-baseband down-conv Ultra low-power integrated circuit for pseudo-baseband down-conv

1994-09-13

1996-10-08

Faile, Andrew

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455207, 455303, 375261, H04B 126

Patent

active

055640982

ABSTRACT:
A GPS receiver downconverter combines on a single integrated circuit, a first super-heterodyne mixer, a voltage controlled oscillator, a phase locked loop, a pair of quadrature mixers and a pair of quantizers with in-phase and quadrature-phase sampler outputs operable at twenty-five MHz and 2.5 MHz. Emitter-coupled logic and special low-voltage bipolar semiconductor technology are combined for 3.3 volt operation at under one hundred milliwatts.

REFERENCES:
patent: 4754465 (1988-06-01), Trimble
patent: 4785463 (1988-11-01), Janc et al.
patent: 5192957 (1993-03-01), Kennedy
patent: 5311149 (1994-05-01), Wagner et al.

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