NXP IW61x | Avnet Silica

IW611 - 2.4/5 GHz Dual-band 1x1 Wi-Fi® 6 (802.11ax) + Bluetooth® 5.2 Solution

The IW61x is a highly integrated 2.4/5 GHz dual-band 1x1 Wi-Fi 6, Bluetooth/Bluetooth Low Energy 5.2 and 802.15.4 tri-radio single-chip solution optimized for a broad array of IoT and industrial applications in smart home, smart devices and accessories, smart appliances, smart energy, industrial automation, gateways and many more. This high degree of integration contributes to very low system costs and a minimum external BOM while achieving efficient coexistence between all internal radios as well as external radios, such as LTE.

IW61x includes a full-feature Wi-Fi subsystem powered by NXP’s 802.11ax (Wi-Fi 6) technology bringing higher throughput, better network efficiency, lower latency and improved range over previous generation Wi-Fi standards. The Wi-Fi subsystem integrates a Wi-Fi MAC, baseband, and direct-conversion radio with integrated PA, LNA and transmit/receive switch removing the need for an RF front-end module (FEMs) saving cost and reducing system complexity.

In addition to a Wi-Fi 6 radio, the IW61x integrates an independent Bluetooth 5.2 and 802.15.4 subsystem that supports Thread and Zigbee mesh networks. The device features Bluetooth Profiles such as hands free (HFP), advanced audio distribution profile (A2DP) for audio streaming as well as additional profiles like dual wideband speech (WBS). For Bluetooth Low Energy, the IW612 enables 2 Mbit/s high-speed data rate, long range, extended advertising, AoA/AoD and mesh. Finally, LE Audio is supported using Isochronous channels for a better overall audio experience.

The IW61x integrates dedicated CPUs and memories for both the Wi-Fi and Bluetooth/802.15.4 subsystems, which enable real time, independent protocol processing. Interfaces for connecting the IW61x to external host processors include SDIO 3.0 for Wi-Fi, UART for Bluetooth and SPI for 802.15.4.

Features

• Wi-Fi Key Features
  • 1x1 2.4/5 GHz, up to 80 MHz channel
  • UL/DL MU-MIMO and OFDMA
  • Target Wake Time, Dual Carrier Modulation, Extended Range
  • 802.11az accurate ranging
  • WPA3 security
  • SDIO 3.0 host interface
• Bluetooth Key Features
  • Supports Bluetooth 5.2
  • Integrated high power PA up to +20 dBm transmit power
  • Full featured Bluetooth baseband
  • SCO/eSCO links with hardware accelerated audio signal processing
  • Bluetooth LE 2 Mbit/s, Long Range, Advertising Extensions, AoA/AoD, Mesh
  • LE Audio with Isochronous channels (I2S/PCM)
  • UART host interface
• 802.15.4 Key Features (IW612)
  • IEEE 802.15.4-2015 compliant supporting Thread and Zigbee in 2.4 GHz band
  • Integrated high power PA up to +20 dBm transmit power
  • Shared transmitter and antenna pin with Bluetooth
  • Simultaneous receive with Bluetooth
  • SPI host interface
• General Features
  • Dedicated, independent CPUs and memories for Wi-Fi and Bluetooth
  • Efficient power management system supporting deep-sleep low-power mode
  • Single and dual antenna configurations

Applications

• Building Automation
• Industrial Automation
• Smart Lighting

Block diagrams

IW611

IW611 application diagram - Single antenna (click to enlarge)

IW611 application diagram - Dual antenna (click to enlarge)

IW611 internal block diagram (click to enlarge)

IW611

IW612 application diagram - Single antenna (click to enlarge)

IW612 application diagram - Dual antenna (click to enlarge)

IW612 internal block diagram (click to enlarge)

IW61x - Avnet Silica's Module Offering