RF3857 Datasheet | RF Micro Devices

Features - Low Noise and High Intercept Point - Adjustable Bias Current - Power Down Control - Low Insertion Loss Bypass Feature - 1.8V to 4V Operation (See “Bias Note” on Page 3) - 0.9GHz to 4.0GHz Operation Applications - Wi Fi LNA with Bypass Feature - Wi MAX LNA with Bypass Fea- ture - CDMA PCS LNA with Bypass Feature - Suitable for 1x2 or 2x1 MIMO Applications - mercial and Consumer Systems 16 GAIN SEL1 1 GND 2 15 14 Logic Logic Control Control 13 12 GAIN SELECT2 11 GND RFOUT1 3 10 RFOUT2 N/C 4 9 N/C RFIN1 GND GND RFIN2 Functional Block Diagram Product Description The RF3857 is a dual channel switchable low noise amplifier with a very high dynamic range designed for digital cellular, Wi MAX, and Wi Fi applications. The device functions as an outstanding front end low noise amplifier. The bias current may be set externally. The RF3857 bines two receive paths, which is ideal in an application that requires two receive paths, such as 1x2 and 2x2 MIMO for both Wi Fi and Wi Max aplications. The IC is featured in a standard QFN, 16-pin, 3mmx3mm plastic package. DS110616 Optimum Technology Matching® Applied - Ga As HBT Si Ge Bi CMOS Ga As p HEMT Ga N...