GSM/EDGE Femto Base Station RF Subsystem
Skyworks offers a highly integrated radio subsystem for quad-band GSM/EDGE femtocell base stations and cellular repeaters. The subsystem supports GSM850, EGSM900, DCS1800, and PCS1900 applications, and combines a fully programmable quad-band transceiver with a transmit/receive FEM. The FEM integrates pHEMT switches, GaAs-based power amplifiers, couplers, and other discrete matching components into a single multi-chip module.
The dual-chip RF subsystem solution saves significant space, cost, and design cycle time. The subsystem provides excellent linearity, blocker performance, dynamic range, and output power required by cellular operators, carriers, and equipment manufacturers of global femtocell base stations and cellular repeaters.
The GSM/EDGE Femto Base Station RF Subsystem features:
- Quad-band transceiver that supports the GSM850, EGSM900, DCS1800, and PCS1900 bands
- FEM providing a complete transmit path from transceiver to antenna with 50 Ohms input/output matching
- Excellent linearity, blocker performance, noise figure, and dynamic range
- Lower BOM cost and compact design
The GSM/EDGE Femto Base Station RF Subsystem consists of:
- SKY74219-21 Transceiver – highly integrated transceiver with four LNAs, a quadrature demodulator, I/Q interface, and baseband filters for quad-band GSM, GPRS, and EDGE femtocell base stations and cellular repeaters
- SKY65330 Transmit/Receive FEM – highly integrated FEM with two PA blocks, one for the GSM/EGSM bands and the other for the DCS/PCS bands