KCT8778N is a highly integrated RF Front-End Integrated Circuit incorporates key RF functionality needed for IEEE 802.11a/n/ac/ax/be WLAN systems operating in the 5.9-7.1GHz range. KCT8778N integrates a linearizable power amplifier (PA), a low noise amplifier (LNA) with bypass, the associated matching network and harmonic filters all in one device.

 

KCT8778N provides an excellent heat dissipation environment for Wi-Fi 7 network equipment which have multiple RF paths configuration. It achieves ultra-low power consumption while providing a competitive EVM level when cooperates with the DPD algorithm. In addition, a DC voltage output power detector and a directional RF coupler are integrated to support closed-loop power control within the system.

 

KCT8778N is assembled in a compact, low-profile 3x5x0.812mm 24-lead LGA package, which is an ideal RF front-end solution for implementing Wi-Fi 7 high-power WLAN systems supporting multiple standards including 802.11a/n/ac/ax/be.

 

Integrated high performance 802.11be PA, LNA with bypass and T/R switch

Fully-matched input and output

Integrated RF & DC power detector

Transmit gain: 31dB at 5V

Receive gain:

13.5dB at high-gain mode, 5V

5dB at mid-gain mode, 5V

Noise Figure:

2.4dB at high-gain mode, 5V

3.1dB at mid-gain mode, 5V

Output power:

+20.0dBm @ -43dB DEVM with DPD, EHT320/MCS13, 5V

+22.5dBm @ -40dB DEVM with DPD, HE160/MCS11, 5V

+24.0dBm @ -35dB DEVM with DPD, VHT80/MCS9, 5V

+24.5dBm @ -30dB DEVM with DPD, HT20/MCS7, 5V

ESD protection circuitry on all PINs

Minimal external components required

Small package: LGA-24L 3mm × 5mm × 0.812mm (MSL3, 260℃ per JEDEC J-STD-020)