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SKY77529 - Front-End Module

General Description

The SKY77529 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.

Key Features

  • WCDMA pass-through - 4 linear ports.
  • TRP-compliant design.
  • SPI bus support.
  • Low loss PHEMT RF antenna switch.
  • Detector output: linear V/V.
  • Closed loop GMSK mode power control.
  • Small outline - 7.5 x 7 mm.
  • Low profile - 0.9 mm MAX.
  • Gold-plated, lead-free contacts.
  • Low VRAMP current Figure 1. SKY77529 Functional Block Diagram Skyworks Solutions, Inc.
  • Phone [781] 376-3000.
  • Fax [781] 376-3.

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PRODUCT SUMMARY SKY77529 Tx Front-End Module for Quad-Band GSM / EDGE www.datasheet4u.com Applications Description The SKY77529 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, a printed directional coupler for each block impedance-matching circuitry for 50 Ω input and output impedances, a multifunction power amplifier control (MFC) block, low pass harmonic rejection filters, and an SP8T Antenna T/R switch. The T/R switch incorporates four linear ports to allow WCDMA parallel operation.