FX3739（5G射频前端解决方案）

Description

The FX3739 is a low-band(LB), mid-band(MB), mid high-band(MHB) and highband(HB) 

LNA bank to be used in a cellular mobile device.

The FX3739 is packaged in a small size 2.9 x 2.9 x 0.75 mm (max), 49-lead surfacemount 

package. No external DC blocking capacitors are required on the RF paths as long as no 

DC voltage is applied. No external DC blocking capacitors are required on the RF paths as 

long as no DC voltage is applied. FX3739 integrates internal impedance matching to 50 

Ohm. No need external matching network unless the filter impedance is not 50 Ohm. The 

part can operate over the temperature range of -30 °C to +85°C.

Broadband frequency range: Low band(LB)(600 to 960MHz); Middle Band(MB)(1800 to 

2200MHz); Middle High Band(MHB)(1800 to 2700MHz); High Band(HB)(2300 to 2700MHz).

Featues

• High-performance variable gain LNAs with gain from G10 to G1.

• 5 LNA output groups with path selections and MHB output mux(1 LB group/2 MB groups/

   1 MHB group/1 HB group)

• Support CA application.

• Integrated MIPI V3.0 interface

• Small (2.9 x 2.9 x 0.75 mm [max]) 49-lead MCM package

• MSL rating level 3

• Green product