STPAC02F2

www.DataSheet4U.com STPAC02F2 IPAD™ RF Detector for power amplifier control with internal temperature compensation Main product characteristics ■ ■ ■ ■ ■ ■ ■ ■ 0.8 to 2.5 GHz frequency range Detection diode voltage drop compensation Temperature compensation Fast response time Low Power consumption Chip Scale device Low parasitic impedance Lead free package Flip-Chip package (8 Bumps) Description The STPAC02F2 is an integrated RF detector for power control chain. It has been developed to convert the RF signal coming from the external coupler into a DC signal usable by the mobile digital stage. It is based on the use of two similar diodes, one assuming the signal detection while the second one is used to compensate the ambient temperature effect. A biasing stage suppresses the detection diode drop voltage effect. The use of the IPAD technology allows the RF front-end designer to save PCB area and to drastically suppress the parasitic inductances of the package. Target applications are cellular phones and PDA using GSM, DCS, PCS, AMPS, TDMA, CDMA and 800 MHz to 2100 MHz frequency ranges. Pin configuration 3 2 Not used GND GND GND VBias 1 OUT GND A B C RFin Order code Part number STPAC02F2 Marking RB Benefits ■ The use of IPAD technology allows the RF front-end designer to save PCB area and to drastically suppress the parasitic inductances. May 2006 Rev 1 1/7 www.st.com 7 www.DataSheet4U.com Characteristics STPAC02F2 1 Characteristics Figure 1. Functional diag...