RF7234PCBA-410 Datasheet PDF - RF Micro Devices

Product Description
The RF7234 is a high-power, high-efficiency, linear power amplifier designed for use as the final RF amplifier in 3V, 50 TD-SCDMA mobile cellular equipment and spread-spectrum systems. This PA is developed for TD-SCDMA 1880MHz to 1920MHz and 2010MHz to 2025MHz frequency band, plus W-CDMA Band 1. The RF7234 has two digital control pins to select one of three power modes to optimize performance and current drain at lower power levels. The part also has an integrated directional coupler which eliminates the need for an external discrete coupler at the output. The RF7234 is fully TD-SCDMA/W-CDMA/HSDPA-compliant and is assembled in a 10-pin, 3mmx3mm module.

FEATUREs
◾ TD-SCDMA and HSDPA Compliant
◾ Low Voltage Positive Bias
   Supply (3.4V to 4.2V)
◾ +28dBm Linear Output
   Power W-CDMA
   (+26.5dBm HSDPA)
◾ +27.5dBm Output Power
   TD-SCDMA
◾ High Efficiency Operation
   35% at POUT=+27.5dBm
   (TD-SCDMA)
◾ 20% at POUT=+19.0dBm
   (Without DC/DC Converter)
◾ Low Quiescent Current in Low
   Power Mode: 17mA
◾ Internal Voltage Regulator
   Eliminates the Need for 
   External Reference Voltage (VREF)
◾ 3-Mode Power States with
   Digital Control Interface
◾ Supports DC/DC Converter
   Operation
◾ Integrated Power Coupler
◾ Integrated Blocking and 
   Collector Decoupling Capacitors

APPLICATIONs
◾ TD-SCDMA/HSDPA/W-CDMA
   Wireless Handsets and Data
   Cards
◾ Dual-Mode UMTS Wireless
   Handsets