Title :
A Bandpass /spl Delta//spl Sigma/ RF-DAC with Embedded FIR Reconstruction Filter
Author :
Taleie, Shahin Mehdizad ; Copani, Tino ; Bakkaloglu, Bertan ; Kiaei, Sayfe
Author_Institution :
Arizona State Univ., Tempe, AZ
Abstract :
A 1b bandpass DeltaSigma DAC followed by a current steering FIR reconstruction filter and an embedded up-conversion mixer is presented. The RF DAC is implemented in 0.25mum digital CMOS, can be used in low-power digital-IF transmitters and eliminates the need for a transimpedance stage and a separate mixer. The RF DAC draws 49mA from a 2.5V supply, achieving -64.7dBc IM3 at 1.03GHz with an SFDR of 72dB in a 15MHz bandwidth
Keywords :
CMOS digital integrated circuits; FIR filters; band-pass filters; digital-analogue conversion; low-power electronics; mixers (circuits); radiofrequency filters; sigma-delta modulation; 0.25 micron; 1 bit; 1.03 GHz; 15 MHz; 2.5 V; 49 mA; DeltaSigma RF-DAC; FIR reconstruction filter; bandpass filter; digital CMOS; digital-to-analog converter; embedded up-conversion mixer; low-power digital-IF transmitters; transimpedance stage; Band pass filters; Circuits; Clocks; Finite impulse response filter; Jitter; Linearity; Phase noise; Quantization; Radio frequency; Transmitters;
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0079-1
DOI :
10.1109/ISSCC.2006.1696300
