Front-end modules support WiFi-enabled smartphones and tablets
According to ABI Research all major smartphone makers are planning to include WiFi functionality in their platforms, with many carriers adding the standard for its ability to support large files for movies and songs. Currently 44 percent of smartphones have WiFi capability with the number expected to increase to 90 percent by 2014. ABI also predicted that the number of WiFi-enabled traditional mobile phones shipped would reach 520 million units by 2014, up from 141 million shipments in 2009.
SKY85302-11 is a complete 802.11 WLAN, RF front-end module (FEM) with a Bluetooth® port. The device provides all the functionality of a fully matched power amplifier, power detector, harmonic filter, low-noise amplifier (LNA) and single-pole, triple-throw switch. This functionality provides a complete 2.4 GHz, 256 quadrature amplitude modulation WLAN RF solution from the output of the transceiver to the antenna, and from the antenna to the input of the transceiver. The LNA increases the receive (Rx) sensitivity of embedded solutions to improve range. The SKY85302-11 also includes a transmit (Tx) power detector with 20 dB of dynamic range, and a digital enable control for Tx on/off control. The device is provided in an ultra compact, 16-pin, 2.5 x 2.5 x 0.45 mm, quad-flat-no-lead package (QFN).
SKY85702-11 is a highly integrated, 5 GHz, 802.11ac FEM incorporating a single-pole, double throw (Tx/Rx) switch, and a PA intended for mobile 802.11ac applications and systems. The device operates from a single supply voltage of 3.6 V. An integrated power detector with 20 dB of dynamic range is included to provide closed-loop power control within the system. It is provided in a compact, 16-pin, 2.5 x 2.5 x 0.45 mm QFN package.
Both FEMs feature direct from battery operation, removing the need for a low drop out regulator and associated components.
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