A tri-mode continuous-time /spl Sigma//spl Delta/ modulator with switched-capacitor feedback DAC for a GSM-EDGE/CDMA2000/UMTS receiver

Complex continuous-time fifth-order /spl Sigma//spl Delta/ modulator with 1b quantizer and switched-capacitor feedback DAC for a GSM/CDMA2000/UMTS receiver achieves a dynamic range of 92/83/74dB in 200/1228/3840kHz. Power consumption of one modulator is 3.8/4.1/4.5mW at 1.8V. Processed in 0.18/spl m...

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Bibliographic Details
Published in2003 IEEE International Solid-State Circuits Conference, 2003. Digest of Technical Papers. ISSCC pp. 60 - 477 vol.1
Main Author van Veldhoven, R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
3G mobile communication
CMOS integrated circuits
CMOS process
Dynamic range
Energy consumption
Feedback
GSM
Oscillators
Phase locked loops
Photonic band gap
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Summary:Complex continuous-time fifth-order /spl Sigma//spl Delta/ modulator with 1b quantizer and switched-capacitor feedback DAC for a GSM/CDMA2000/UMTS receiver achieves a dynamic range of 92/83/74dB in 200/1228/3840kHz. Power consumption of one modulator is 3.8/4.1/4.5mW at 1.8V. Processed in 0.18/spl mu/m CMOS, the 0.55mm/sup 2/ IC includes a PLL, two oscillators and a bandgap reference.
ISBN:0780377079
9780780377073
ISSN:0193-6530
2376-8606
DOI:10.1109/ISSCC.2003.1234207