SKY74963 Datasheet | Skyworks Solutions

Description The SKY74963 RF transceiver is a highly integrated device for multi-band Global System for Mobile munications (GSM) or General Packet Radio Service (GPRS) applications. The device requires a minimal number of external ponents to plete 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 d B, DCS = 22 d B, PCS = 20 d B. architecture that eliminates the need for Intermediate Frequency Baseband gain range = 100 d B (IF) ponents. The SKY74963 consists of three integrated Low - Gain selectable in 2 d B 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 an In-phase and architecture Quadrature (I/Q) modulator within a frequency translation loop . - Integrated transmit VCOs designed to perform frequency up-conversion with high output - Wide RF range for multi-band operation spectral purity. This loop also contains a phase-frequency - Integrated PAC loop detector, charge pump, mixer, programmable dividers, and high - Single integrated, fully programmable fractional-N synthesizer power transmit Voltage Controlled Oscillators (VCOs) with no suitable for multi-slot GPRS operation external tank required. With the integrated gain controller (and an - Fully integrated wideband UHF VCO integrator ), the device realizes the Power Amplifier Control (PAC) - 26 MHz integrated crystal oscillator with 26 MHz output functionality when bined with a...