C3210 MHz IF Digitizer Using Dynamic Quadrant Based Swapping with a 65 dB Image Rejection Ratio
ESSCIRC 2002 Y. Lai, N. Lam, B. Leung U. Of Waterloo
10/16/2002 Presenter: B. Leung 1
Outline
Motivation Crosstalk due to I/Q Mismatch Novel Algorithm Implementation Test Results Conclusions
10/16/2002
Presenter: B. Leung
2
Motivation
Develop a IF digitizer for a QPSK receiver with I/Q mismatch correction algorithm using 0.35um CMOS technology
10/16/2002
Presenter: B. Leung
3
Motivation
IF digitizer in a super heterodyne QPSK receiver
A/D IF A/D
10/16/2002
Presenter: B. Leung
4
Motivation
Problem with gain and phase mismatch in digitization: 1) for digitizer in IF section that incorporates anti-image mixing, neighboring channel at image frequency not entirely cancelled ……
