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A Digital-Intensive Multimode Multiband Receiver Using a Sinc Filter-Embedded VCO-Based ADC
| Content Provider | CiteSeerX |
|---|---|
| Author | Yu, Wonsik Cho, Seonghwan Kim, Jaewook |
| Abstract | Abstract—In this paper, we present a 0.2–1.8-GHz digital-in-tensive receiver front-end using a voltage-controlled oscillator (VCO)-based analog-to-digital converter (ADC) running at 1.4 Gs/s in 90-nm CMOS. To improve the out-of-band rejection, we propose a second-order anti-aliasing Sinc filter that can be embedded in the ADC, which exploits the integrating nature of a VCO. the nonideal effect of the proposed architecture is analyzed with regard to the waveform imperfection due to device mismatch. The proposed receiver achieves 94 dBm of sensitivity at 1-MHz bandwidth and 6.8 dBm of IIP3, while providing 50-dB rejection of aliased signals. Index Terms—Anti-aliaising filter, digital-intensive, direct-con-version receiver, highly digitized, multimode multiband, Sinc |
| File Format | |
| Access Restriction | Open |
| Content Type | Text |
