AWT6155

This power amplifier module AWT6155 supports dual, tri and quad band applications for GMSK and 8-PSK modulation schemes using a polar architecture. There are two amplifier chains, one to support GSM850/900 bands, the other for DCS/PCS bands. Each amplification chain is optimized for excellent EDGE efficiency, power, and linearity in a Polar loop environment while maintaining high efficiency in the GSM/GPRS mode.

The module AWT6155 includes an internal reference voltage and integrated power control scheme for use in both GMSK and 8-PSK operation. This facilitates fast and easy production calibration and reduces the number of external components required to complete a power control function.

The amplifier AWT6155 's power control range is typically 55 dB, with the output power set by applying an analog voltage to VRAMP. All of the RF ports for this device are internally matched to 50 Ohms.