RF3857 Dual Channel LNA with Bypass Mode 

The RF3857 is a dual channel switchable low noise amplifier with a very high dynamic range designed for digital cellular WiMAX and WLAN applications. The device functions as an outstanding front end low noise amplifier. The bias current may be set externally. The IC is featured in a standard QFN 16-pin 3mmx3mm plastic package.

技术特性 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
功能框图 Functional Block Diagram

RF3857  功能框图

应用领域 Applications
  • WiFi LNA with Bypass Feature
  • WiMAX LNA with Bypass Feature
  • CDMA PCS LNA with Bypass Feature
  • Suitable for 1x2 or 2x1 MIMO Applications
  • Commercial and Consumer Systems
技术指标
Frequency Range (Min) (MHz): 900
Frequency Range (Max) (MHz): 4000
Gain (dB): 14
NF (dB): 1.3
OP1dB (dBm): 11
OIP3 (dBm): 21
VSUPPLY (V): 3
ISUPPLY (mA): 7
Package: QFN-16
订购信息 Ordering Information
  • RF3857 Standard 25 piece bag
  • RF3857SR Standard 100 piece reel
  • RF3857TR7 Standard 2500 piece reel
  • RF3857PCK-410 Fully assembled evaluation board tuned for 2.0GHz to
    3.0GHz and 5 loose sample pieces
  • RF3857PCK-411 Fully assembled evaluation board tuned for 3.1GHz to
    4.0GHz and 5 loose sample pieces
产品实物图

RF3857  产品实物图

订购信息 Ordering Information
订购型号 MOQ*             INC*             Packaging and Shipping Details QTY Per 1 EA
RF3857 25 EA 25 EA Standard 25 Piece Reel Shipping From Greensboro 1+ $1.79
RF3857SR 100 EA 100 EA Standard 100 Piece 7" Short Reel Shipping From Greensboro 100+ $1.25
RF3857TR7 2500 EA 2500 EA Standard 2500 Piece 7" Reel Shipping From Greensboro 750+ $0.87
RF3857PCK-411 1 EA 1 EA Standard 1 Shipping From Greensboro 1+ $150.00

应用技术支持与电子电路设计开发资源下载 大小(KB) 版本信息
RF3857 数据资料DataSheet下载.pdf 619 DS110616