A 184mW Fully Integrated DVB-H Tuner Chip with Distortion Compensated Variable Gain LNA

A single chip direct conversion DVB-H tuner with a distortion compensated variable gain LNA is implemented in 0.5mum SiGe BiCMOS. The LNA exhibits 0dBm IIP3 and 2.8dB NF at 860MHz. A new offset cancel feedback is introduced that keeps the cutoff frequency independent of the baseband gain. The IC con...

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Bibliographic Details
Main Authors: Kawamura, H., Fujiwara, T., Kagoshima, K., Kawama, S., Kijima, H., Koutani, M., Toyoyama, S., Sakuno, K., Iizuka, K.
Format: Conference Proceeding
Language:English
Subjects:
Baseband
BiCMOS integrated circuits
Cutoff frequency
Digital video broadcasting
Feedback
Gain
Germanium silicon alloys
Noise measurement
Silicon germanium
Tuners
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Description
Summary:A single chip direct conversion DVB-H tuner with a distortion compensated variable gain LNA is implemented in 0.5mum SiGe BiCMOS. The LNA exhibits 0dBm IIP3 and 2.8dB NF at 860MHz. A new offset cancel feedback is introduced that keeps the cutoff frequency independent of the baseband gain. The IC consumes 184mW at 2.8V while achieving a sensitivity of -96dBm for QPSK, CR=1/2 signal
ISSN:2158-5601
2158-5636
DOI:10.1109/VLSIC.2006.1705301