Title :
Digital-IF WCDMA handset transmitter IC in 0.25 μm SiGe BiCMOS
Author :
Leung, Victor ; Larson, Lawrence ; Gudem, Prasad
Author_Institution :
Univ. of California San Diego, La Jolla, CA, USA
Abstract :
This paper describes a 1.8×2.2 mm2 WCDMA handset transmitter IC which reduces power consumption by employing a high-order-hold DAC, an adaptively-biased mixer, and an RF VGA. Implemented in a 0.25 μm SiGe BiCMOS process, the IC consumes 58 mA at maximum output power of 3.5 dBm, and 41 mA at reduced output from a 3 V supply.
Keywords :
BiCMOS integrated circuits; UHF amplifiers; UHF mixers; code division multiple access; digital-analogue conversion; low-power electronics; radio transmitters; 0.25 micron; 1.8 mm; 2.2 mm; 253.4 MHz; 3 V; 41 mA; 58 mA; BiCMOS; RF VGA; SiGe; adaptively-biased mixer; digital-IF handset transmitter IC; high-order-hold DAC; low-power WCDMA transmitter; BiCMOS integrated circuits; Digital integrated circuits; Energy consumption; Germanium silicon alloys; Multiaccess communication; Radio frequency; Radiofrequency integrated circuits; Silicon germanium; Telephone sets; Transmitters;
Conference_Titel :
Solid-State Circuits Conference, 2004. Digest of Technical Papers. ISSCC. 2004 IEEE International
Print_ISBN :
0-7803-8267-6
DOI :
10.1109/ISSCC.2004.1332654
