DigRF接口标准

Helios_DigRF Subsystem for GSM-GPRS-EDGE Handsets_200451APRODUCT SUMMARY

Helios DigRF Subsystem for GSM, GPRS, and EDGE Mobile Handset Applications
Applications
GSM850, EGSM900, DCS1800, and PCS1900 handsets GPRS handsets and modules EDGE handsets and modules time while providing world-class GSM, GPRS, and EDGE performance. All of the necessary RF components needed to build a quad-band, multi-standard handset have been incorporated into the Helios DigRF Subsystem. It allows a direct interface to a digital baseband with a DigRF interface. The highly integrated subsystem includes Skyworks SKY74200 RF transceiver and SKY77520 T/R FEM. This subsystem uses Skyworks advanced Polar Loop transmit modulation architecture. This unique architecture enables the radio to transmit both constant as well as non-constant envelope signals through the same tra