DocumentCode :
815204
Title :
A 63 mA 112/94 dB DR IF Bandpass 
Modulator With Direct Feed-Forward Compensation and Double Sampling
Author :
Yamamoto, Takaya ; Kasahara, Masumi ; Matsuura, Tatsuji
Author_Institution :
Renesas Technol. Corp., Takasaki
Volume :
43
Issue :
8
fYear :
2008
Firstpage :
1783
Lastpage :
1794
Abstract :
We developed a 10.7 MHz intermediate frequency bandpass discrete-time 4th-order 4-bit DeltaSigma modulator for AM/FM car radio tuners. Using direct feed-forward compensation and double sampling, we have achieved a dynamic range (DR) of 112 dB in the 3 kHz AM bandwidth (BW) and a DR of 94 dB in the 200 kHz FM BW. The modulator occupies 3 mm2 , in 0.15 mum CMOS technology, and draws 63 mA of current.
Keywords :
CMOS integrated circuits; band-pass filters; delta-sigma modulation; AM/FM car radio tuners; CMOS technology; DR IF bandpass DeltaSigma modulator; bandwidth 200 kHz; bandwidth 3 kHz; current 63 mA; direct feed-forward compensation; double sampling; dynamic range; frequency 10.7 MHz; intermediate frequency bandpass discrete-time modulator; size 0.15 mum; Bandwidth; CMOS technology; Dynamic range; Feedforward systems; Frequency modulation; Noise cancellation; Radio broadcasting; Receivers; Sampling methods; Tuners; AM/FM digital receiver; analog-digital conversion; bandpass delta-sigma modulator; direct feed-forward compensation; double-sampling;
fLanguage :
English
Journal_Title :
Solid-State Circuits, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9200
Type :
jour
DOI :
10.1109/JSSC.2008.925618
Filename :
4578764
Link To Document :
