A 10.7-MHz self-calibrated switched-capacitor-based multibit second-order bandpass ΣΔ modulator with on-chip switched buffer.

A 10.7-MHz self-calibrated switched-capacitor-based multibit second-order bandpass ΣΔ modulator with on-chip switched buffer.

A second-order multibit bandpass ΣΔ modulator (BPΣΔM) used for the digitizing of AM/FM radio broadcasting signals at a 10.7-MHz IF is presented. The BPΣΔM is realized with switched-capacitor (SC) techniques and operates with a sampling frequency of 37.05 MHz. The input impulse current, required by t...

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Bibliographic Details
Published in:IEEE Journal of solid state circuits 39, 8 (2004).
Main Author: Colonna, V.
Format: Article
Language:English
Subjects:
0.18 micron.
10.7 MHz.
200 kHz.
37.05 MHz.
88 mW.
AM/FM radio broadcasting signals.
CMOS technology.
FM bandwidth.
SC input branch.
In-band noise shaping.
Input impulse current.
Intermodulation.
Mixed-signal FM receiver.
On-chip switched buffer.
Power consumption.
Sampling frequency.
Self-calibrating control systems.
Switched-capacitor techniques.
Multibit second-order bandpass ΣΔ modulator.
Self-calibrated switched-capacitor-based ΣΔ modulator.