Bandpass delta-sigma modulator (BP DSM)

A 125–600-MHz IF 75-dB DR Partially Time-Interleaved Bandpass DSM Based on Passive $N$ -Path Filters

A 125–600-MHz IF 75-dB DR Partially Time-Interleaved Bandpass DSM Based on Passive $N$ -Path Filters 150 150

Abstract:

This work presents a sixth-order partially time-interleaved bandpass delta-sigma modulator (BP DSM) for direct intermediate-frequency (IF) digitization. There are three resonators, and each of them is built with a passive $N$ -path filter; while two open-loop operational transconductance amplifiers (OTAs) are inserted in between to realize the loop filter. The …

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