A CMMB Mobile TV Tuner Frontend with Integrated RSSI for Dual-band Applications
This paper presents a dual band CMMB mobile TV tuner frontend RFIC with integrated Received Signal Strength Indicator (RSSI). The tuner rFIC includes two sets of receiver front-ends for terrestrial and satellite applications. The front-ends further include LNAs with dual gain adjusting,variable gain amplifiers (VGAs),and a mixer with two gm cells plus a common LO switch cell. The built-in Automatic Gain Control (AGC) loop meets wide dynamic range requirement of the mobile TV tuner. The tuner is integrated in a 0.5um SiGe BiCMOS technology and consumes 16mA current from 2.8V supply. The RSSI is fully integrated with only two off-chip capacitors for low pass filtering. The tuner frontend RFIC achieves 45dB of maximum gain,70dB gain control range,and an IIP3 higher than 18 dBm in minimum gain mode.
Automatic Gain Control CMMB direct conversion LNA mizer VGA RSSI
Hua Xu Yin Shi Fa Foster Dai
Suzhou-CAS Semiconductors Integrated Technology Co.,Ltd .,SuZhou,China Electrical and Computer Engineering Department,Auburn University,Auburn,AL 36849-5201,USA Suzhou-CAS
国际会议
2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)
长沙
英文
351-354
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）