1/5

STPAC02F1

®

October 2003 - Ed: 1

Flip-Chip package

GND

RFin

GND

GND

GND

VBias

OUT

Not

used

32

1

A

B

C

PIN CONFIGURATION (ball side)

■

The use of IPAD technology allows the RF

front-end designer to save PCB area and to

drastically suppress the parasitic inductances.

BENEFITS

RF DETECTOR FOR POWER AMPLIFIER CONTROL

WITH INTERNAL TEMPERATURE COMPENSATION

■

0.8 to 2.5GHz frequency range

■

Detection diode voltage drop compensation

■

Temperature compensation

■

Fast response time

■

Low Power consumption

■

Chip Scale device

■

Low parasitic impedance

MAIN PRODUCT CHARACTERISTICS

The STPAC02F1 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

DESCRIPTION

TM : IPAD is a trademark of STMicroelectronics.

Coupler

Antenna

GND

STPAC02F1

RF input

DC output

OUT

Bias voltage

Low pass

filter

Thermal

compensation

RF detector

FUNCTIONAL DIAGRAM