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.