Design and construction 19 Mixed signal circuits 19 Electronic circuit design 10 Analog-to-digital converters 8 Integrated circuits 7 Metal oxide semiconductors, Complementary 6 Digital techniques 4 Frequency synthesizers 4 Linear integrated circuits 4 Phase-locked loops 4 Signal processing 4 Computer-aided design 2 Signal generators 2 Verilog (Computer hardware description language) 2 Very large scale integration 2 Application specific integrated circuits 1