Broadcom’s BCM4389 Chip with Wi-Fi 6E Technology and Bluetooth 5
Broadcom’s BCM4389 chip is a client-side device supporting Wi-Fi 6E and Bluetooth 5 combo dedicated to mobile handset applications. The Wi-Fi 6E technology can operate on the 6 GHz band with 160MHz wide channels which is a progressive version of the Wi-Fi 6 technology. Hence, it enables speeds over 2 Gbps for faster communications than the Wi-Fi 6 that supports from 2.4GHz to 5GHz radio bands.
The BCM4389 chip is a low-power design with multi-radio Bluetooth 5 architecture compatible for BT Xstream Dual Bluetooth and Tri-Band Simultaneous (TBS) connectivity that enhances the Wi-Fi and Bluetooth functionalities for optimized battery utilization. The chip features low power consumption and small solution size. Hence, making it suitable for mobile applications with high performance and low latency requirements.
Broadcom’s BCM4389 will power the world’s first Wi-Fi 6E smartphone that is Samsung Galaxy S21 Ultra. The phone comes with the BCM4389 chip featuring a glitch-free audio experience and enhanced location accuracy. The chip comes with a power management unit that eases the system power topology. This supports the direct operation from a mobile platform battery, hence maximizing the battery life.
Key Features of BCM4389 Chip
- Seven Wi-Fi and Bluetooth radios
- Support for 2 streams of Wi-Fi 6E
- Multi-Radio Bluetooth 5 with antenna beamforming
- Tri-Band Simultaneous (TBS) architecture including a dedicated background scan radio for Wi-Fi and Bluetooth
- Simultaneous dual-band operation
- 2.63 Gbps PHY rate
- Operation in 2.4 GHz and 5.1-7.125 GHz unlicensed bands
- 160 MHz channel bandwidth
- 1024-QAM modulation
BCM4389 chip comes with a TBS connectivity architecture that supports improved Wi-Fi QoS and five times better battery utilization. Its Bluetooth 5 architecture creates robust links to audio headsets even in highly crowded areas like subway stations. The multiple input multiple output feature of the Bluetooth 5 allows body blocking immunity and solution for interference in communication.
CEO of Wi-Fi Alliance says:
“Broadcom’s chipset, among the first Wi-Fi 6E certified devices in our interoperability testbed, that powers Samsung’s Wi-Fi 6E smartphone demonstrates the industry’s rapid momentum to deliver Wi-Fi 6E benefits securely and reliably to Wi-Fi users. Hence, Wi-Fi Alliance members have mobilized around Wi-Fi 6E for recognizing the tremendous latency and performance benefits devices can deliver to Wi-Fi users”
The chip is expected to be used for AR/VR applications as it reduces latency by working at higher data rates. So, it can support UHD video streaming with a 4K resolution (3840 x 2160 pixels). It features secured connectivity for mobile hotspots for high-speed tethering use cases. It also enables robust low-power indoor use cases like homes, apartments, offices, and indoor public venues.