Front-End Module For LTE and NR, B42, B43, B48, n77, n78 and n79, PC2, 1T2R, MIPI RFFE 2.1 for Tx, 3.0 for Rx

The FX6879B is a highly integrated L-PAMiF developed for 4G-LTE and 5G-NR standards with a package size of 3.5mm x 5.5mm x 0.745mm ( typ. )


The FX6879B is self contained with PAs, controller, filters, TRX/SRS switch, bi-directional coupler, low noise amplifiers(LNAs) and input/output matching network.


The FX6879B meets stringent linearity requirements of DFT-SOFDM and CP-OFDM specifications at APT(Average Power Tracking) for both Power Class 2(PC2) and Class 3(PC3)power targets. The extremely low leakage current in power-down mode maximizes handset stand-by time.


• 5G-NR Power Class 2 High Power
• Support B42/B43/B48(LTE), n77/n78/n79(NR)
• APT optimized and ET capable
• Build in ET/APT Bypass Cap Switch
• Integrated 4 LNA cores and Filters support both n77 and n79 Primary and Diversity receive
• Integrated SRS Switch with 4 ANT Ports
• Integrated Bi-directional Coupler
• MIPI RFFE 2.1 interface for Tx
• MIPI RFFE 3.0 interface for Rx
• RoHS Compliant
• Compact Size and Low Profile:
    - 3.5mm x 5.5mm x 0.745mm
    - 30-pad configuration