Dual band frontend modules

May 2006
Portable Design;May2006, Vol. 12 Issue 5, p38
The article presents information about Skywork Inc.'s dual band frontend modules. The SKY77517 and SKY77518 are compact, dual-band transmit GSM/GPRS frontend modules for use in low-cost handsets. The SKY77517 and SKY77518 offer's a complete transmit Voice Channel Occupancy-to-antenna and antenna-to-receive surface acoustical wave filter platform. Other features include impedance-matching circuitry for 50 ohm input and output impedances, high linearity, transmit harmonics filtering, and low insertion loss, pseudomorphic high electron mobility transistor RE switches; and a diplexer and power amplifier control block with an internal current sense resistor.


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