Title :
A highly integrated GPS receiver for cellular handset
Author :
Dantoni, F. ; Holden, A. ; Fu, S.T. ; Sahu, D. ; Venkatraman, S. ; Embabi, S.H.K.
Author_Institution :
RF Design Group, Texas Instrum. Inc., Dallas, TX, USA
Abstract :
A highly integrated dual conversion heterodyne GPS receiver is reported. The receiver chip includes a 2.9 dB NF LNA, an image-reject mixer with 32 dB image rejection. The on-chip IF chain, which consists of a VGA, a 2nd mixer and filtering, has a maximum gain of 83 dB, a gain range of 45 dB and a 7 dB NF. A 4-bit ADC is integrated on chip for enhanced SNR. The PLL with its VCO are also integrated. The total NF is 3 dB with a total 121 dB voltage gain. The chip consumes 132 mW at 2.7 V.
Keywords :
Global Positioning System; cellular radio; heterodyne detection; radio receivers; telephone sets; 121 dB; 132 mW; 2.7 V; 3 dB; ADC; IF chain; LNA; PLL; VCO; cellular handset; image reject mixer; integrated dual conversion heterodyne GPS receiver; Coupling circuits; Filters; Global Positioning System; Image converters; Noise measurement; Radio frequency; Telephone sets; Transmitters; Voltage; Voltage-controlled oscillators;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2001. Digest of Papers. 2001 IEEE
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6601-8
DOI :
10.1109/RFIC.2001.935650
