Product Description：

The Broadcom BCM43684B1KRFBG is a highly integrated Wi-Fi 6 (802.11ax) RF transceiver chip that supports a 4×4 spatial stream design across both 2.4 GHz and 5 GHz bands. It integrates MAC/PHY functions and RF transceiver modules, specifically designed for high-performance wireless access points.

This device eliminates the need for external RF front-end modules to achieve Wi-Fi 6 communication, covering both transmission and reception (Tx/Rx).

Key Features：

Wi-Fi 6 (802.11ax) support – Enables the latest wireless standard with higher throughput and lower latency.

4×4 MIMO architecture – Supports up to four spatial streams for improved concurrency and data rates.

Maximum data rate up to 4.8 Gbps – Meets high-bandwidth requirements for routers and hotspots.

Integrated MAC, PHY, and RF modules – Reduces system complexity, BOM cost, and accelerates product development.

High-density 196-pin LFBGA package – Suitable for compact hardware designs.

Typical Applications：

Home and enterprise wireless access points (Routers / APs) – Provides high-speed, multi-user wireless coverage.

Mesh Wi-Fi systems and extenders – Ensures fast data relay across multiple nodes.

Smart devices with integrated Wi-Fi – Such as smart TVs, set-top boxes, and home gateways.

Industrial and enterprise wireless infrastructure – For office networking, factory connectivity, and high-density environments.