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A direct-conversion receiver integrated circuit for WCDMA mobile systems
2003
IBM Journal of Research and Development
A prototype of a 3-V SiGe direct-conversion receiver integrated circuit for use in third-generation (3G) WCDMA mobile cellular systems has been completed. The goal of its design was to minimize current draw while meeting WCDMA receiver rf specifications with margin. The design includes a bypassable low-noise amplifier, quadrature downconverter, and first-stage variable-gain baseband amplifiers integrated on chip. The design is optimized for use with a single-ended off-chip bandpass
doi:10.1147/rd.472.0337
fatcat:llghrueafvdxzgd7ni4wxosj3u