Dual-band Wi-Fi audio chip for HD streaming
The BCM43907 reduces cost for original equipment manufacturers (OEMs) by integrating all needed functionality onto a single device. As the first audio SoC to implement dual-band Wi-Fi, it reduces interference and delivers a cleaner overall sound to wireless streaming devices such as portable speakers, 5.1 multi-speaker systems, sound bars and media players. Devices with dual-band Wi-Fi experience fewer interruptions and benefit from a significant network performance boost by operating on two bands.
In addition, advanced RF and timing synchronization enables the same content to be streamed over multiple speakers in different rooms in the home with no echo or lag time. This allows consumers to stream a variety of content to different speakers from the same device. A consumer for example can use Bluetooth to listen to a radio station from their smartphone in one room of the home while simultaneously streaming music to a portable speaker in another room, all using the same device and Wi-Fi network.
The low power SoC extends 802.11n Wi-Fi connectivity to audio speakers and offers pre-integrated Apple Airplay support with direct access to Broadcom’s WICED Audio software development kit (SDK).
It includes an on-chip 320 MHz ARM® Cortex®-R4 applications CPU for the audio speaker market that includes 32 KB each of instruction and data caches, along with 2 MB of TCM RAM. The SoC offers DDR3L memory and Q-SPI Serial flash interfaces for applications and streaming content buffering
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