SKY74963

www.DataSheet4U.com PRODUCT SUMMARY SKY74963: RF Transceiver With Power Ramping Controller and Integrated Crystal Oscillator for Multi-Band GSM, GPRS, and EDGE Applications Applications GSM850, EGSM900, DCS1800, and PCS1900 handsets GPRS handsets and modules EDGE downlink support Description The SKY74963 RF transceiver is a highly integrated device for multi-band Global System for Mobile Communications (GSM) or General Packet Radio Service (GPRS) applications. The device requires a minimal number of external components to complete a GSM radio subsystem. The SKY74963 supports GSM850, EGSM900, DCS1800, and PCS1900 applications. The receiver also supports Enhanced Data for GSM Evolution (EDGE) downlink applications. Features Direct down-conversion receiver eliminates the external image reject/IF filters Three separate LNAs with single-ended inputs The receive path implements a direct down-conversion RF gain range: GSM = 20 dB, DCS = 22 dB, PCS = 20 dB. architecture that eliminates the need for Intermediate Frequency Baseband gain range = 100 dB (IF) components. The SKY74963 consists of three integrated Low Gain selectable in 2 dB steps Noise Amplifiers (LNAs), a quadrature demodulator, tunable Integrated receive baseband filters with tunable bandwidth receiver baseband filters, and a DC Offset Correction (DCOC) Integrated DCOC sequencer sequencer. Reduced filtering requirements with translational loop transmit In the transmit path, the device consists of...