T0372

The T0372 is a 4 mm *4 mm 3-V CDMA/AMPS cell-band power amplifier module designed for use in mobile phones. Its extremely small 4 mm *4 mm package makes it ideal for today's very small data enable phones. The module supports the IS-95 and IS-98 standards and is also 1xRTT compliant. The T0372 provides excellent RF performance with low current consumption resulting in longer talk times in portable applications. The module has a small 4 mm
4 mm footprint, which facilitates its use in the next generation of small, lightweight handsets and other wireless applications. The heart of the module is a two-stage power amplifier manufactured in Atmel's SiGe technology. The T0372 provides the capability to be operated digitally (one or two bias states), or in a continuous quiescent current mode. In two-state quiescent current mode operation, the T0372 is controlled by the baseband processor using a CMOScompatible I_CQ control voltage. Overall current consumption of the device is minimized by selecting the lowest I_CQ state available for each power output level. The module is 50- matched on the input and output, allowing the device to be used with minimal external circuitry.