NXP Semiconductors IW611UK/A1IZ

Overview

IW611UK/A1IZ from NXP Semiconductors is a dual-band 2.4/5 GHz 1×1 Wi-Fi 6 (802.11ax) and Bluetooth 5.2 single-chip solution with integrated PA/LNA, SDIO 3.0 host interface, and UART-based Bluetooth HCI. It delivers MU-MIMO/OFDMA, LE Audio isochronous channels, and coexistence-optimized RF architecture for smart home gateways and industrial edge devices.

For engineers reviewing the IW611UK/A1IZ datasheet, IW611UK/A1IZ pinout, IW611UK/A1IZ application, or IW611UK/A1IZ equivalent, key selection criteria include its dual-radio independence, integrated RF front-end elimination, SDIO 3.0 SDR104 support, Bluetooth 5.2 LE Audio readiness via HCI, and dual-antenna configuration flexibility.

Technical Context

The IW611UK/A1IZ implements physically separate Wi-Fi and Bluetooth subsystems-each with dedicated CPU and memory-to enable real-time, non-interfering protocol processing. Its Wi-Fi baseband supports 20/40/80 MHz bandwidths, MCS0–11 (802.11ax), LDPC coding, and DFS radar detection compliant with regulatory requirements in 2.4 GHz (ch. 1–13) and 5 GHz (ch. 36–177, plus 4.9 GHz UNII-1 extensions).

Bluetooth 5.2 operation includes Class 1/2 transmit power, dual WBS links, SCO/eSCO hardware-accelerated audio, and LE features such as 2 Mbps PHY, Long Range, Advertising Extensions, and isochronous channels-all sharing a single-ended RF path with BDR/EDR while maintaining independent baseband control via UART HCI at up to 3 Mbps.

Key Specifications

Pinout & Package

The IW611UK/A1IZ is housed in a 7.0 mm × 7.0 mm × 0.85 mm 64-pin QFN package with exposed thermal pad (EP). Pin functions are defined per the official NXP IW611 reference design and application diagrams (Figures 1–2), supporting single- or dual-antenna configurations with integrated diplexer/SPDT switch routing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-radio wireless SoC applications.

Compared with ESP32-C6 and QCA4024, the IW611UK/A1IZ uniquely combines certified 5 GHz Wi-Fi 6, Bluetooth 5.2 LE Audio readiness, and integrated RF front-end in a single package-enabling smaller form factors, faster time-to-certification, and future-proof audio/data convergence without host CPU overhead.

Availability

IW611UK/A1IZ is available at Aetrix Electronics and suitable for smart home gateways, industrial building automation nodes, voice-controlled appliance hubs, and security camera edge processors requiring stable component supply and long-term lifecycle assurance.

Supply support for IW611UK/A1IZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with over 30 years of RF and wireless SoC innovation.

The IW611UK/A1IZ belongs to NXP's i.MX Wireless family, engineered specifically for resource-constrained, low-power edge devices demanding concurrent high-efficiency Wi-Fi 6 and Bluetooth 5.2 operation in certified commercial and industrial environments.

FAQ

What wireless standards does the IW611UK/A1IZ support?

The IW611UK/A1IZ supports IEEE 802.11ax (Wi-Fi 6) for both 2.4 GHz and 5 GHz bands-including MU-MIMO, OFDMA, TWT, and DFS-and Bluetooth 5.2 with full BLE 5.3 feature set. It implements WPA3/WPA2 encryption, 802.11az ranging, and 802.11mc indoor positioning. The IW611UK/A1IZ does not support Wi-Fi 7 or Bluetooth 5.4 features.

Does the IW611UK/A1IZ require an external RF front-end module (FEM)?

No, the IW611UK/A1IZ integrates a fully functional RF front-end including power amplifier (PA), low-noise amplifier (LNA), and transmit/receive switch on-die. This eliminates the need for external FEM components, reduces BOM cost, simplifies layout, and improves system-level RF performance consistency. The IW611UK/A1IZ achieves this while maintaining regulatory compliance across global regions.

How does the IW611UK/A1IZ handle Wi-Fi and Bluetooth coexistence?

The IW611UK/A1IZ implements hardware-assisted time-division and frequency-domain coexistence between its integrated Wi-Fi and Bluetooth radios. It supports standard coexistence protocols via dedicated GPIO signaling and internal arbitration logic, minimizing interference without host CPU involvement. This ensures reliable dual-radio operation in dense RF environments-critical for the IW611UK/A1IZ's use in smart speakers and security cameras.

What audio interfaces are available on the IW611UK/A1IZ?

The IW611UK/A1IZ provides shared I2S/PCM digital audio interfaces supporting mono and dual-channel modes, 8/16-bit PCM slot widths, and clock rates of 4.096 MHz, 2.048 MHz, and 2 MHz. These interfaces are used for voice capture/playback in Bluetooth HFP/A2DP and LE Audio applications. The IW611UK/A1IZ does not include analog audio inputs or DACs-external codecs are required for analog signal chain interfacing.

Is the IW611UK/A1IZ pin-compatible with other members of the IW6xx family?

No, the IW611UK/A1IZ is not pin-compatible with IW612 or AW611. While all share the same 64-pin QFN package footprint, pin assignments differ significantly-particularly for RF routing, antenna switching, and power domains-to accommodate their distinct feature sets (e.g., IW612 adds 802.15.4 radio, AW611 adds AEC-Q100 qualification). Board redesign is required when migrating between IW6xx variants.