| Citation: |
Han Kefeng, Tan Xi, Tang Zhangwen, Min Hao. A wideband CMOS VGLNA based on single-to-differential stage and resistive attenuator for TV tuners[J]. Journal of Semiconductors, 2011, 32(7): 075003. doi: 10.1088/1674-4926/32/7/075003
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Han K F, Tan X, Tang Z W, Min H. A wideband CMOS VGLNA based on single-to-differential stage and resistive attenuator for TV tuners[J]. J. Semicond., 2011, 32(7): 075003. doi: 10.1088/1674-4926/32/7/075003.
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A wideband CMOS VGLNA based on single-to-differential stage and resistive attenuator for TV tuners
DOI: 10.1088/1674-4926/32/7/075003
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Abstract
A wideband CMOS variable gain low noise amplifier (VGLNA) based on a single-to-differential (S2D) stage and resistive attenuator is presented for TV tuner applications. Detailed analysis of input matching, noise figure (NF) and linearity for S2D is given. A highly linear passive resistive attenuator is proposed to provide 6 dB attenuation and input matching for each gain stage. The chip was fabricated by a 0.18 μm 1P6M CMOS process, and the measurements show that the VGLNA covers a gain range over 36.4 dB and achieves a maximum gain of 21.3 dB, a minimum NF of 3.0 dB, an IIP3 of 0.9 dBm and an IIP2 of 26.3 dBm at high gain mode with a power consumption less than 10 mA from a 1.8 V supply.-
Keywords:
- S2D
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References
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Proportional views
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