Title :
A low-noise analog baseband in 65nm CMOS
Author :
Elwan, Hassan ; Tekin, Ahmet ; Pedrotti, Kenneth
Author_Institution :
Newport Media Inc., Lake Forest, CA, USA
Abstract :
In this paper, a universal receiver baseband approach is introduced. The chain includes a post-mixer noise shaping blocker pre-filter, a programmable-gain post mixer amplifier (PMA) with blocker suppression, a differential ramp-based linear-in-dB variable gain amplifier and a Sallen-Key output buffer. The 1.2-V chain is implemented in a 65-nm CMOS process, occupying a die area of 0.45 mm2. While the device can be tuned across a bandwidth of 700-KHz to 5.2-MHz with 20 KHz resolution, it is tested for two distinct mobile-TV applications; Integrated Services Digital Broadcasting-Terrestrial ISDB-T (3-Segment fc=700 KHz) and Digital Video Broadcasting-Terrestrial/Handheld (DVB-T/H fc=3.8 MHz).
Keywords :
CMOS analogue integrated circuits; low noise amplifiers; radio receivers; CMOS; Sallen-Key output buffer; bandwidth 700 kHz to 5.2 MHz; blocker suppression; differential ramp-based linear-in-dB variable gain amplifier; digital video broadcasting-terrestrial/handheld; integrated services digital broadcasting-terrestrial ISDB-T; low-noise analog baseband; mobile-TV application; post-mixer noise shaping blocker prefilter; programmable-gain post mixer amplifier; size 65 nm; universal receiver baseband; voltage 1.2 V; Baseband; Gain; Mixers; Noise; Receivers; Resistors; Voltage control;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2010 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4244-5758-8
DOI :
10.1109/CICC.2010.5617614
