SKY77542中文資料思佳訊數(shù)據(jù)手冊PDF規(guī)格書

Description

The SKY77542 is a transmit and receive front-end module (FEM) with Integrated Power Amplifier

Control (iPAC?) for dual-band cellular handsets comprising GSM900 and DCS1800 operation.

Designed in a low profile, compact form factor, the SKY77542 offers a complete Transmit VCO-to

Antenna and Antenna-to-Receive SAW filter solution. The FEM also supports Class 12 General Packet

Radio Service (GPRS) multi-slot operation.

Features

? High efficiency

- GSM900 45.0

- DCS1800 38.5

? Low transmit supply current

- GSM900 1.26 A

- DCS1800 0.93 A

? Internal ICC sense resistor for iPAC

? Closed loop iPAC

? 50 Ωmatched Input/Output

? Tx–VCO-to-antenna and antenna-to-Rx-SAW filter RF interface

? Tx harmonics below –33 dBm

? PHEMT RF switches afford high linearity, low insertion loss, and less than 20 μA

supply current in receive modes

? Small outline: 7 x 6 mm

? Low profile: 0.9 mm

? Compatible with multiple logic families

? Low APC current: 25 μA

Applications

? Dual-band cellular handsets encompassing

- Class 4 GSM900

- DCS1800

- Class 12 GPRS multi-slot operation