Title :
A 400-MHz processor for the efficient conversion of rectangular to polar coordinates for digital communications applications
Author :
Hwang, D.D. ; Dengwei Fu ; Willson, A.N., Jr.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Abstract :
A 400-MHz digital rectangular-to-polar coordinate converter has been implemented in 0.25-/spl mu/m CMOS. The inputs to the chip are 14-bit in-phase and quadrature channels, and the outputs are 15-bit magnitude and phase channels. The phase and magnitude calculations have a maximum error of 0.00024 and 0.03, respectively. At a maximum frequency of 406 MHz, the circuit dissipates 470 mW of power at 2.5 V.
Keywords :
CMOS digital integrated circuits; VLSI; application specific integrated circuits; data conversion; digital communication; digital signal processing chips; high-speed integrated circuits; telecommunication computing; 0.25 micron; 14 bit; 15 bit; 2.5 V; 400 to 406 MHz; 470 mW; ASIC; CMOS processor; digital communications applications; digital coordinate converter; rectangular-to-polar coordinate converter; Circuits; Clocks; Concurrent computing; DH-HEMTs; Digital communication; Digital signal processing; Frequency synchronization; Hardware; Phase estimation; Read only memory;
Conference_Titel :
VLSI Circuits Digest of Technical Papers, 2002. Symposium on
Conference_Location :
Honolulu, HI, USA
Print_ISBN :
0-7803-7310-3
DOI :
10.1109/VLSIC.2002.1015096
