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Quadrature bandpass SigmaDelta modulators based on polyphase filters are suited for analog-to-digital conversion in GSM/EDGE low-IF receivers. This paper presents a continuous-time quadrature bandpass sigma-delta (SigmaDelta) modulator with a chain of integrators with weighted capacitive feedforward summation (CICFF) topology - which is a desirable solution for implementation in low power applications...
A 3rd order complex band-pass filter (BPF) with auto-tuning architecture is proposed in this paper. It is implemented in 0.18 ??m standard CMOS technology. The complex filter is centered at 4.092 MHz with bandwidth of 2.4 MHz. The in-band 3rd order harmonic input intercept point (IIP3) is larger than 16.2 dBm, with 50 ?? as the source impedance. The input referred noise is about 80 uVrms. The RC tuning...
A 3rd order complex band-pass filter (BPF) with auto-tuning architecture is proposed in this paper. It is implemented in 0.18 ??m standard CMOS technology. The complex filter is centered at 4.092 MHz with bandwidth of 2.4 MHz. The in-band 3rd order harmonic input intercept point (IIP3) is larger than 19 dBm, with 50 ?? as the source impedance. The input referred noise is about 80 ??Vrms. The RC tuning...
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