Title :
An interpolative bandpass converter on a 1.2 mu m BiCMOS analog/digital array
Author :
Troster, G. ; Sieber, P. ; Schopp, K. ; Wedel, A. ; Zocher, E. ; Arndt, J. ; Dressler, H.J. ; Golberg, H.-J. ; Schardein, W.
Author_Institution :
Telefunken Electron., Heilbronn, Germany
Abstract :
The architecture and performance of an interpolative bandpass A/D converter and digital quadrature demodulator for the cellular radio mobile receiver is presented. A prototype version has been implemented on a 1.2 mu m/7 GHz BiCMOS analog/digital array. A bandpass signal centered at 6.5 MHz with 200 kHz bandwidth is demodulated and converted with a 55 dB signal-to-noise ratio resulting in 9-b performance. Using FFT analysis the baseband spectrum of the I and Q signals is generated. The signal-to-noise ratio in the baseband is better than 55 dB or 9-b, which is sufficient for cellular radio application.<>
Keywords :
BiCMOS integrated circuits; analogue-digital conversion; cellular radio; demodulators; interpolation; radio receivers; 1.2 micron; 200 kHz; 6.5 MHz; BiCMOS analog/digital array; FFT analysis; baseband spectrum; cellular radio mobile receiver; digital quadrature demodulator; interpolative bandpass A/D converter; signal-to-noise ratio; Bandwidth; Baseband; BiCMOS integrated circuits; Demodulation; Land mobile radio cellular systems; Prototypes; Receivers; Signal analysis; Signal generators; Signal to noise ratio;
Conference_Titel :
VLSI Circuits, 1992. Digest of Technical Papers., 1992 Symposium on
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-0701-1
DOI :
10.1109/VLSIC.1992.229271
