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NXP Semiconductors IW611HN/A1CK
- Part No.:
- IW611HN/A1CK
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- -
- Datasheet:
-
IW611HN/A1CK.pdf
- Description:
- IC RF BLE
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
IW611HN/A1CK 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 integrating independent Wi-Fi and Bluetooth subsystems with dedicated CPUs, on-die PA/LNA/switch, SDIO 3.0 (up to SDR104), and UART host interfaces - optimized for smart home hubs, voice-enabled speakers, and industrial gateways requiring coexistence-aware wireless connectivity.
For engineers reviewing the IW611HN/A1CK datasheet, IW611HN/A1CK pinout, IW611HN/A1CK application, or IW611HN/A1CK equivalent, key selection criteria include integrated RF front-end elimination, Wi-Fi 6 MU-MIMO/OFDMA support, Bluetooth LE 5.3 isochronous channels, I2S/PCM audio interface capability, and dual-antenna configuration flexibility.
Technical Context
The IW611HN/A1CK implements two physically and logically isolated radio subsystems: a full-feature Wi-Fi 6 MAC/baseband/radio supporting 20/40/80 MHz channels, MCS0–11, HE SU/MU formats, and DFS radar detection; and a Bluetooth 5.2/LE 5.3 baseband with dual-mode BDR/EDR + LE operation, SCO/eSCO hardware acceleration, and WBS dual-link support.
Coexistence is managed via hardware-assisted protocol arbitration and shared antenna path switching, while real-time protocol processing is enabled by separate ARM-based CPUs and dedicated SRAM for each subsystem - eliminating host CPU offload requirements for time-critical radio tasks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wi-Fi Standard | IEEE 802.11ax (Wi-Fi 6) 1×1 SU/MU-MIMO/OFDMA, backward compatible with 802.11ac/n/a/g/b - enables higher network efficiency and lower latency in dense IoT deployments. |
| Bluetooth Version | Bluetooth 5.2 + Bluetooth LE 5.3 - supports 2 Mbit/s LE data rate, long range, extended advertising, and isochronous channels for LE Audio. |
| Frequency Bands | 2.4 GHz (Ch 1–13) and 5 GHz (Ch 36–177, plus UNII-2e/3/4 subsets) - covers global regulatory domains including FCC, ETSI, and MIC. |
| Host Interfaces | SDIO 3.0 (4-bit, up to SDR104 @ 208 MHz) for Wi-Fi; UART (up to 3 Mbps) for Bluetooth - eliminates need for PCIe or USB controllers in cost-sensitive designs. |
| Audio Interfaces | I2S/PCM shared pins supporting mono/dual-channel modes, 8/16-bit PCM slots, and 4.096/2.048/2 MHz clock rates - enables direct connection to ADC/DAC without external audio codec. |
| Integrated RF Front End | On-die PA, LNA, and Tx/Rx switch for both 2.4 GHz and 5 GHz bands - removes external FEM, reduces BOM count, and simplifies RF layout. |
| Security | WPA3 personal/enterprise, AES-CCMP/GCMP, BIP-GMAC, and Bluetooth LE Secure Connections - meets modern IoT security certification requirements (e.g., Matter, CSA Level 3). |
Pinout & Package
Package: 9.0 mm × 9.0 mm × 1.0 mm 121-pin QFN (A1CK suffix denotes this package variant per NXP documentation).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDIO_CLK / SDIO_CMD / SDIO_D[0:3] | Wi-Fi host interface signals | Compliant with SDIO 3.0 specification; supports SDR104 mode for up to 208 MHz clock and 832 Mbps aggregate throughput. |
| UART_TX / UART_RX / UART_CTS / UART_RTS | Bluetooth host interface signals | Full-handshake UART supporting up to 3 Mbps baud rate; enables low-latency HCI transport for BLE audio and control stacks. |
| I2S_BCLK / I2S_LRCLK / I2S_DIN / I2S_DOUT | Digital audio interface (shared with PCM) | Configurable as I2S master or slave; supports 8–16 kHz sampling rates and dual-channel stereo or dual-Bluetooth voice paths. |
| PCM_CLK / PCM_SYNC / PCM_DIN / PCM_DOUT | Digital audio interface (shared with I2S) | Supports PCM short/long frame sync, up to four configurable time slots, and 8/16-bit slot widths - ideal for telephony-grade voice applications. |
| GPIO_0–GPIO_15 | General-purpose I/O | Programmable as inputs/outputs with interrupt capability; used for LED control, button sensing, antenna switching, and coexistence signaling. |
| XTAL_IN / XTAL_OUT | Crystal oscillator interface | Supports 38.4 MHz fundamental-mode crystal for RF timing reference; enables stable dual-band operation without external PLL modules. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated dual-radio coexistence engine | Hardware-accelerated time-division and priority arbitration between Wi-Fi and Bluetooth - eliminates software-level interference mitigation overhead. |
| Wi-Fi 6 MU-MIMO and OFDMA support | Enables simultaneous multi-user uplink/downlink transmission and subcarrier allocation - improves spectral efficiency in multi-device smart home networks. |
| Bluetooth LE isochronous channels (ISOC) | Provides deterministic low-latency audio streaming paths for LE Audio - required for synchronized multi-speaker playback and hearing aid applications. |
| Dedicated dual-CPU architecture | Separate ARM cores and SRAM for Wi-Fi and Bluetooth subsystems - ensures real-time protocol stack execution without host processor dependency. |
| On-die RF front end (PA/LNA/switch) | Eliminates need for external FEM components - reduces PCB area by ≥25%, lowers system BOM cost, and improves RF yield consistency. |
Applications
| Smart Speaker Voice Gateway | Industrial Wi-Fi-to-BLE Bridge |
|---|---|
|
Use Scenario: Voice-controlled smart speaker with local voice assistant processing and cloud connectivity. IC Role / Device Role / Timing Role: Primary wireless SoC handling concurrent Wi-Fi 6 uplink (streaming audio to cloud) and Bluetooth LE 5.3 isochronous downlink (local TTS playback). Use Value: Integrated I2S/PCM and dual-CPU architecture enable zero-latency audio path without external codec or host intervention. |
Use Scenario: Factory-floor sensor node aggregating BLE temperature/humidity data and forwarding via Wi-Fi 6 to central SCADA system. IC Role / Device Role / Timing Role: Dual-radio coordinator managing time-sliced BLE peripheral scanning and scheduled Wi-Fi 6 OFDMA uplink bursts. Use Value: Hardware coexistence engine ensures reliable BLE connection stability even during high-throughput Wi-Fi transfers. |
| Smart Home Security Hub | Appliance Remote Control Gateway |
|
Use Scenario: Central hub connecting Z-Wave/Thread peripherals via Wi-Fi 6 and pairing BLE accessories (door locks, tags). IC Role / Device Role / Timing Role: Wi-Fi 6 station maintaining persistent AP association while Bluetooth 5.2 handles secure pairing and OTA firmware updates. Use Value: WPA3 and Bluetooth LE Secure Connections provide end-to-end encryption for both network and device provisioning layers. |
Use Scenario: Microwave oven or air conditioner with embedded Wi-Fi 6 for remote monitoring and BLE for proximity-based quick setup. IC Role / Device Role / Timing Role: Dual-role radio managing background Wi-Fi beacon listening and foreground BLE advertising during commissioning. Use Value: Single-chip integration reduces thermal footprint and enables compact enclosure design without compromising wireless feature set. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-radio wireless SoC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESP32-WROOM-32 | Lacks Wi-Fi 6 support (802.11n only); no integrated 5 GHz radio; uses external flash; no hardware isochronous channel support. | Suitable for cost-sensitive 2.4 GHz-only IoT endpoints but not for Wi-Fi 6 infrastructure or LE Audio use cases. | Select when Wi-Fi 6, 5 GHz, or LE Audio are not required and ESP-IDF ecosystem compatibility is prioritized. |
| QCA4024 | Wi-Fi 4 (802.11n) + BLE 4.2 only; no MU-MIMO, OFDMA, or isochronous channels; requires external PA/LNA for 5 GHz. | Targeted at legacy smart home devices where throughput and audio latency are less critical. | Choose only for brownfield designs already committed to QCA toolchain and where Wi-Fi 6 features are unnecessary. |
Compared with ESP32-WROOM-32 and QCA4024, the IW611HN/A1CK delivers measurable advantages in spectral efficiency (OFDMA), latency (MU-MIMO scheduling), and audio fidelity (LE ISOC), making it the only option among the three qualified for Matter-over-Wi-Fi 6 and LE Audio certification paths.
Availability
IW611HN/A1CK is available at Aetrix Electronics and suitable for smart speaker development, industrial gateway production, and appliance connectivity programs requiring stable component supply and long-term lifecycle assurance.
Supply support for IW611HN/A1CK 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The IW611HN/A1CK belongs to NXP's i.MX Wireless family, designed specifically to deliver certified, production-ready Wi-Fi 6 + Bluetooth 5.x integration for resource-constrained edge devices in smart home and industrial automation.
FAQ
What wireless standards does the IW611HN/A1CK support?
The IW611HN/A1CK supports IEEE 802.11ax (Wi-Fi 6) for 2.4 GHz and 5 GHz bands with full MU-MIMO and OFDMA compliance, plus Bluetooth 5.2 and Bluetooth LE 5.3. It implements all mandatory and optional features including WPA3 security, isochronous channels, 2 Mbit/s LE data rate, and long-range mode - verified in NXP's IW611_PB Rev. 1 product brief.
Does the IW611HN/A1CK require an external RF front-end module?
No, the IW611HN/A1CK integrates a complete RF front end including power amplifier (PA), low-noise amplifier (LNA), and transmit/receive switch for both 2.4 GHz and 5 GHz bands. This eliminates the need for external FEM components, reducing BOM count, PCB area, and RF tuning complexity - as confirmed in Section 1.1 and Figure 1 of the IW611_PB document.
What audio interfaces are available on the IW611HN/A1CK?
The IW611HN/A1CK provides shared I2S/PCM digital audio interfaces supporting both mono and dual-channel configurations. It operates at clock rates of 4.096 MHz, 2.048 MHz, and 2 MHz, with configurable slot widths (8/16-bit) and frame sync modes (short/long). These interfaces directly connect to ADCs/DACs without external codecs - detailed in Sections 3.4.1 and 3.4.2 of the IW611_PB.
How does the IW611HN/A1CK handle Wi-Fi and Bluetooth coexistence?
The IW611HN/A1CK implements hardware-based coexistence using time-division multiplexing and priority arbitration between its independent Wi-Fi and Bluetooth subsystems. It supports standard coexistence protocols and includes dedicated GPIO signaling for external antenna switch control - enabling robust dual-radio operation without host CPU intervention, as described in Figures 1–2 and Section 1 of the IW611_PB.
Is the IW611HN/A1CK pin-compatible with other members of the IW61x family?
No, the IW611HN/A1CK is not pin-compatible with IW612 (tri-radio) or AW611 (automotive-grade) variants. While all share the same 9×9 mm QFN-121 package outline, pin functions differ significantly - particularly for 802.15.4 radio signals in IW612 and AEC-Q100-specific test/debug pins in AW611. Pin mapping must be validated per device-specific datasheets.
IW611HN/A1CK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Type:
- -
- RF Family/Standard:
- Bluetooth, WiFi
- Protocol:
- -
- Modulation:
- -
- Frequency:
- 2.4GHz, 5GHz
- Data Rate (Max):
- -
- Power - Output:
- -
- Sensitivity:
- -
- Memory Size:
- -
- Serial Interfaces:
- -
- GPIO:
- -
- Voltage - Supply:
- -
- Current - Receiving:
- -
- Current - Transmitting:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
IW611HN/A1CK FAQ
1.How can I place an order for IW611HN/A1CK through Aetrix?
Please submit a Request for Quotation (RFQ) for IW611HN/A1CK on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for IW611HN/A1CK reliable?
The price and inventory of IW611HN/A1CK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IW611HN/A1CK is usually 5 days.
3.What payment methods are accepted for IW611HN/A1CK?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IW611HN/A1CK transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IW611HN/A1CK?
IW611HN/A1CK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IW611HN/A1CK order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for IW611HN/A1CK?
For technical support, including IW611HN/A1CK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IW611HN/A1CK requirements.
6.How does Aetrix verify that IW611HN/A1CK is sourced from the original manufacturer or authorized distributors?
All IW611HN/A1CK products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IW611HN/A1CK meets industry standards.
7.What is the process for return or replacement of IW611HN/A1CK?
All IW611HN/A1CK units undergo pre-shipment inspection (PSI). If there is an issue with IW611HN/A1CK, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The IW611HN/A1CK part is unused and in its original packaging.
Return procedure for IW611HN/A1CK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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