Title :
A compact-disc analog-to-digital front-end in BiCMOS technology
Author :
Baschirotto, A. ; Brasca, G. ; Colonna, V. ; Cusinato, P. ; Gandolfi, G.
Author_Institution :
Leece Univ., Italy
fDate :
5/1/2000 12:00:00 AM
Abstract :
A BiCMOS analog front-end to be used in a complete two-chip set with a digital signal processor for compact disc (CD) applications is presented. The proposed device exchanges data with the digital counterpart by means of a I2C-like bus serial interface. Four input signals (currents or voltages) are preamplified with flat group-delay and digitized with 6-bit (for servo path) and 6-bit (for RF path) accuracy. This accuracy is achieved without using an equalizer in the signal path. The system is designed to process CD signal with speed up to 4× (i.e. 3.2 MHz bandwidth). The device is realized in a 0.7 μm BiCMOS technology using 21.5 mm2 chip area
Keywords :
BiCMOS analogue integrated circuits; Hi-Fi equipment; analogue processing circuits; audio discs; digital signal processing chips; integrated circuit technology; preamplifiers; 0.7 mum; 3.2 MHz; 6 bit; 8 bit; ADC; BiCMOS analog front-end; BiCMOS technology; CD signal processing; Hi-Fi car audio; I2C-like bus serial interface; RF path; bandwidth; chip area; compact disc applications; compact-disc analog-to-digital front-end; currents; digital signal processor; flat group-delay; input signals; preamplification; servo path; signal path; two-chip set; voltages; BiCMOS integrated circuits; Digital signal processors; Equalizers; Process design; RF signals; Radio frequency; Servomechanisms; Signal design; Signal processing; Voltage;
Journal_Title :
Consumer Electronics, IEEE Transactions on
