GENERAL DESCRIPTION

This CMOS device integrates an amplifier for the detected RF voltage from the sensor, an integrator and an active filter to build a PA control loop for cellular systems with a small number of passive components.

FEATURES

? Compatible with baseband interface family PCF5073x

? Two power sensor inputs

? Temperature compensation of sensor signal

? Active filter for Digital-to-Analog Converter (DAC) input

? Power Amplifier (PA) protection against mismatching

? Bias current source for detector diodes

? Generation of pre-bias level for PA at start of burst (home position)

? Compatible with a wide range of silicon PAs

? Compatible with multislot class 12

? Dual output with internal switch

? Two different transfer functions

? Possibility to adapt dynamic transfer functions

? Very small outline package (3 × 3 mm).

APPLICATIONS

? Global System for Mobile communication (GSM)

? Personal Communications Network (PCN) systems.