Broadcom 802.11ac for Phones

Posted by Sam Churchill on

At CES in January, Broadcom announced its first family of 802.11ac chips that were primarily meant for routers. Now Broadcom has announced 802.11ac chips for smartphones. Broadcom says the BCM4335 is the industry’s first complete “5G” WiFi combo chip for smartphones, tablets, ultrabooks and other mobile devices.

It features:

  • BCM4335 integrates a complete 5G WiFi system — including the MAC, PHY and RF — with Bluetooth 4.0, FM radio and software on a single chip using 40nm CMOS process
  • Only combo chip to address unique interference challenges in systems with both 4G LTE cellular radios and wireless connectivity
  • Platform-agnostic design ensures chip can be added to any smartphone or tablet

The new Broadcom BCM4335 chip supports 20, 40, and 80 MHz channels with optional SGI (256 QAM modulation) and is backwards compatible with IEEE 802.11a/b/g/n legacy gear. The 802.11ac standard uses the 5 GHz band exclusively. It gangs more 20 MHz channels together and can utilize MIMO beamforming, although phone usage will minimize the use of multiple radios (streams) to lower power requirements.

BCM4335 is currently sampling and will enter production Q1 2013.

According to In-Stat, nearly 350 million 802.11ac enable devices (routers, client devices, modems etc.) will ship annually by 2015.

Posted by Sam Churchill on Wednesday, July 25th, 2012 at 7:13 am .

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