AM52-0023SMB

Power Amplifier with T/R Switch for 802.11b Preliminary Release V 1.3 AM52-0023 Features WLAN and Bluetooth Applications Meets 802.11b Spectral Mask Requirements at +20 dBm PA Output Power Integrated SPDT Switch Integrated Detector Downset Leadframe for Excellent Heat Dissipation High Power, Low Power, Shutdown Modes Functional Schematic VDET VSUP PAOUT/ VSUP TX NC SWRX ANT SWTX VCTRL1 VCTRL2 NC VSUP RX VCTRL VSUP 20 VSUP VSUP NC RFIN NC 1 Description The AM52-0023 is a two stage power amplifier designed for 802.11b and other 2.4 GHz applications. This product includes a detector and a T/R switch. Transmit specifications are given at the antenna port and include the switch insertion loss. The small size and height of the AM52-0023 make it ideal for PC card applications. The AM52-0023 has three operating modes; High Power, Low Power, and Shutdown. The High Power Mode has both the first and second PA stages biased on and is achieved by setting both Vctrl1 and Vctrl2 to +3 volts. The Low Power Mode has the first PA stage on and the second PA stage off and is achieved by setting Vctrl1 to +3 volts and Vctrl2 to 0 volts. The Shutdown Mode is achieved by setting both Vctrl1 and Vctrl2 to 0 volts. Pin Configuration Pin No. 3, 5, 9, 14 Function NC RFIN VSUPPLY VCTRL1 VCTRL2 RX SWT X ANT SW RX TX PAOUT /VSUP VDET VCTL GND Description No Connection RF Input to Amplifier DC Supply Power Control, Stage 1 Power Control, Stage 2 Receive Port on Switch Switch Control Switc...