Embedded anti-aliasing in switched-capacitor ladder filters with variable gain and offset compensation

A combination of continuous-time and switched capacitor integrators in a simulated LC lossless ladder yields a response with suppressed aliasing without the use of continuous-time prefiltering. Fabricated in a 0.35-/spl mu/m CMOS process, a fifth-order Cauer low-pass filter for a W-CDMA cellular pho...

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Veröffentlicht in:	IEEE journal of solid-state circuits 2002-03, Vol.37 (3), p.349-356
Hauptverfasser:	Azuma, S., Kawama, S., Iizuka, K., Miyamoto, M., Senderowicz, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aliasing Capacitors Cell phones Cellular phones CMOS process Compensation Cutoff frequency Gain Ladders Low pass filters Multiaccess communication Noise levels Offsets Power supplies Sampling methods Tuning Variable gain
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