SKY77528 Datasheet (Skyworks Solutions)

SKY77528, Front-End Module

The SKY77528 is a transmit Front-End Module (FEM) designed for quad-band Global System for Mobile Communications (GSM), General Packet Radio Service (GPRS), and Enhanced Data Rate for GSM Evolution (EDGE) handsets and modules.

The SKY77528 consists of a GSM850/EGSM900 PA block and a DCS1800/PCS1900

SKY77528 Features

* High efficiency: - GSM850, 45% (peak) - EGSM900, 45% (peak) - DCS1800, 40% (peak) - PCS1900, 40% (peak)

* Low-loss PHEMT RF antenna switch

* Detector output: linear dB/V

* Closed loop GMSK mode power control

* Low VRAMP current

* Low VBATT detection