DocumentCode :
3548413
Title :
A bipolar IF amplifier/RSSI for ASK receiver
Author :
Tao, Yonggang ; Xu, Yongsheng ; Jin, Wei ; Yu, Hui ; Lai, Zongsheng
Author_Institution :
Inst. of Microelectron. Circuits & Syst., East China Normal Univ., Shanghai, China
Volume :
2
fYear :
2005
fDate :
18-21 Jan. 2005
Firstpage :
1236
Abstract :
A bipolar logarithmic intermediate-frequency (IF) amplifier with received signal strength indicator (RSSI) circuit for ASK receiver is presented. The amplifier realizes a piecewise approximation to an exact logarithmic response. In the demodulating log amplifiers, a special architecture of RSSI is proposed. There are five stages in the log amplifiers. Each consists of a limiter amplifier and a gm cell. A 90dB input dynamic range within ±1dB linearity is achieved.
Keywords :
amplitude shift keying; integrated circuit design; intermediate-frequency amplifiers; receivers; ASK receiver; RSSI; bipolar logarithmic amplifier; intermediate-frequency amplifier; limiter amplifier; log amplifiers; logarithmic response; piecewise approximation; received signal strength indicator circuit; Amplitude shift keying; Demodulation; Dynamic range; Feedback circuits; Local oscillators; Low pass filters; Radiofrequency amplifiers; Transconductance; Transfer functions; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Design Automation Conference, 2005. Proceedings of the ASP-DAC 2005. Asia and South Pacific
Print_ISBN :
0-7803-8736-8
Type :
conf
DOI :
10.1109/ASPDAC.2005.1466566
Filename :
1466566
Link To Document :
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