SKY77527-21 PDF Datasheet
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Description
This is Front-End Module. PRODUCT SUMMARY
SKY77527-21 Tx Front-End Module for Quad-Band GSM , EDGE
Applications
Quad-band cellular handsets: GMSK Modulation: - Class 4 GSM850, 900 - Class 1 DCS1800, PCS1900 - Class 12 GPRS multi-slot operation EDGE modulation: - Class E2 GSM850, 900 - Class E2 DCS1800, PCS1900
Description
The SKY77527-21 Tx Front End Module (FEM) is designed in a compact form factor for quad-band cellular handsets comprising GSM850, 900, DCS1800, PCS1900, supporting GMSK and linear EDGE modulation. Class 12 General Packet Radio Service (GPRS) multi-slot operation is also supported. The module consists of a GSM850, 900 PA block and a DCS1800, PCS1900 PA block, impedancematching circuitry for 50 Ω input and output impedances, a multifunction power amplifier control (MFC) block, low pass harmonic rejection filters, and an SP6T Antenna T, R switch. Two separate Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated onto an InGaP die; one supports the GSM850, 900 bands, th.