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Transmit Module

Wed, 04/07/2004 - 11:03am

RF Micro Devices introduces an integrated transmit module (TxM) for quad-band GSM/GPRS cellular handsets. The RF3177 transmit module contains all of the transmitter functions from the power amplifier (PA) to the antenna of the handset, and is available from the PowerStar® family of PA modules. Measuring 9 × 10 × 1.5 mm and packaged in a laminate-based module, the module includes a quad-band PA, integrated power control, pHEMT antenna switch functionality with four independent receive ports (RX), as well as all associated filtering, duplexing, and control functions. The device requires no external matching components and eliminates the PA-to-switch matching design effort. Additionally, the module enables a single device to be used in all four GSM bands. The transmit module's fully integrated silicon CMOS power control loop meets all spectrum and burst-timing requirements, with 50Ω input and output terminals. The product is manufactured using RFMD's GaAs HBT for the power amplifier, silicon CMOS for the integrated power control and pHEMT for the switch.

RF Micro Devices, Inc.

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