Journal of Applied Sciences ›› 2005, Vol. 23 ›› Issue (5): 478-482.

• Articles • Previous Articles     Next Articles

A CMOS Limiting Amplifier and Received Signal Strength Indicator for Bluetooth Receiver

WANG Jing-guang, MA De-qun, HONG Zhi-liang   

  1. State Key Laboratory of ASIC and System, Fudan University, Shanghai 200433, China
  • Received:2004-06-02 Revised:2004-07-28 Online:2005-09-30 Published:2005-09-30

Abstract: A piece-wise linear logarithmic amplifier is presented.It can be used as limiting amplifier and received-signal-strength indicator (RSSI) in Bluetooth receivers.The circuit, as a part of Bluetooth RF chip, is implemented with the 0.35 μm CMOS technology.Measurements show that RSSI linear error is less than 0. 5 dB with a dynamic range of 40 dB.

Key words: Bluetooth, low power, piece-wise linear logarithmic amplifier, limiting amplifier, received signal strength indicator

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