SKY77547RF/IF射頻/中頻RFID的射頻前端（LNA+PA）規(guī)格書PDF中文資料

SKY77547屬于RF/IF射頻/中頻RFID的射頻前端（LNA+PA）。由美國思佳訊公司制造生產(chǎn)的SKY77547射頻前端（LNA + PA）本系列中的產(chǎn)品是各種集成電路，其中集成了射頻 (RF) 信號鏈連接到系統(tǒng)天線的部分中常見的一種或多種功能，如低噪聲放大器 (LNA) 和可編程放大器 (PA)。任何給定器件所含的實(shí)際功能各不相同，相比旨在提供更高應(yīng)用靈活性的器件，針對相對較窄應(yīng)用的器件通常集成更大一部分必要的信號鏈。

Description

The SKY77547 is a transmit and receive front-end module (FEM) with Integrated Power Amplifier Control (iPAC?) for quad-band cellular handsets comprising GSM850/900 and DCS1800/PCS1900 operation. Designed in a low profile, compact form factor, the SKY77547 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

- 44 (GSM)

- 42 (DCS/PCS)

? Low transmit supply current

- 1.30 A (GSM)

- 0.86 A (DCS/PCS)

? Internal ICC sense resistor for iPAC

? Closed loop iPAC

? 50 Ω matched Input/Output

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

? Tx harmonics below –33 dBm

? PHEMT RF switch affords high linearity, low insertion loss, and less than 20 μA supply current in receive modes

? Small, low profile package

- 8 mm x 6 mm x 1.05 mm

- 30-pad configuration

? Compatible with multiple logic families

? Low APC current: 25 μA

Applications

? Quad-band cellular handsets encompassing

- Class 4 GSM850/900

- DCS1800/PCS1900

- Class 12 GPRS multi-slot operation