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This paper presents a novel continuous time ΔΣ modulator for multi-mode operation. The design is targeted for low power, low IF multi-mode receivers and could operate on any bandwidth ranging from 0.5MHz to 1.5MHz while using the same architecture. A 3rd order, quadrature bandpass (QBP) modulator is preferred that operates on a single side of the frequency spectrum and hence improves the noise shaping...
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