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NXP Semiconductors IW611HN/A1CMP
- Part No.:
- IW611HN/A1CMP
- Manufacturer:
- NXP Semiconductors
- Category:
- RF Transceiver ICs
- Package:
- -
- Datasheet:
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IW611HN/A1CMP.pdf
- Description:
- IW611HN
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Product details
Overview
IW611HN/A1CMP from NXP Semiconductors is a dual-band 2.4/5 GHz Wi-Fi 6 (802.11ax) and Bluetooth 5.2 single-chip solution with integrated 1x1 RF, on-die PA/LNA/switch, SDIO 3.0 host interface, and UART HCI interface - designed for low-BOM IoT edge nodes requiring concurrent wireless connectivity in smart home, industrial automation, and audio accessories.
For engineers reviewing the IW611HN/A1CMP datasheet, IW611HN/A1CMP pinout, IW611HN/A1CMP application, or IW611HN/A1CMP equivalent, key selection criteria include its integrated dual-radio coexistence architecture, support for Wi-Fi 6 MU-MIMO/OFDMA and Bluetooth LE isochronous channels, and dual I2S/PCM audio interface capability for voice-enabled endpoints.
Technical Context
The IW611HN/A1CMP implements two independent protocol stacks: a full Wi-Fi 6 subsystem with 802.11ax MAC/baseband/radio supporting 20/40/80 MHz bandwidths, MCS0–11 modulation, and HE SU/MU/TB PPDU formats; and a Bluetooth 5.2 subsystem with dual-mode BDR/EDR + LE, supporting up to 16 simultaneous LE connections, WBS, and LE Audio via isochronous channels.
Hardware-level coexistence is enabled through dedicated CPUs and memories per radio domain, shared antenna resources managed by internal SPDT switch and diplexer, and hardware-accelerated SCO/eSCO audio processing with PPEC algorithm - all coordinated without host CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Wi-Fi Standard | IEEE 802.11ax (Wi-Fi 6), backward compatible with 802.11ac/n/a/g/b - enables higher throughput, lower latency, and OFDMA-based multi-user scheduling in dense environments. |
| Bluetooth Version | Bluetooth 5.2 + LE 5.3 - supports 2 Mbps LE data rate, long range, advertising extensions, and isochronous channels for LE Audio synchronization. |
| RF Bands | 2.4 GHz (channels 1–13) and 5 GHz (channels 36–177, plus 4.9 GHz UNII-1) - covers global regulatory domains including FCC, ETSI, and MIC. |
| Host Interface | SDIO 3.0 (up to SDR104, 208 MHz) for Wi-Fi; UART HCI (up to 3 Mbps) for Bluetooth - eliminates need for PCIe or USB controllers in cost-sensitive designs. |
| Audio Interface | I2S/PCM dual-mode interface with 4.096/2.048/2 MHz clock support, mono/dual-channel operation, and shared pins - enables direct connection to ADC/DAC or voice processor without external codec. |
| Security | WPA3 personal/enterprise, AES-CCMP/GCMP encryption, BIP-GMAC management frame protection, and Bluetooth LE Secure Connections - meets modern IoT security requirements out of box. |
| Power Management | Integrated power-down control, IEEE 802.11 power save modes, Bluetooth hold/sniff/subrating, and dynamic frequency selection (DFS) - extends battery life and ensures regulatory compliance in 5 GHz band. |
Pinout & Package
The IW611HN/A1CMP is housed in a 7.0 mm × 7.0 mm × 1.0 mm 64-pin QFN package with exposed thermal pad. Pin functions are defined per the official NXP IW611 reference design and application diagrams (Figures 1–2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XTAL_IN / XTAL_OUT | Crystal oscillator interface | Supports 38.4 MHz fundamental-mode crystal for system clock generation; enables low-jitter timing essential for Wi-Fi 6 OFDMA symbol alignment and Bluetooth LE precise timing. |
| SDIO_CMD / SDIO_CLK / SDIO_D[0:3] | Wi-Fi host interface | 4-bit SDIO 3.0 bus operating at up to 208 MHz - delivers >100 Mbps effective throughput for high-bandwidth streaming applications like audio/video bridging. |
| UART_TX / UART_RX / UART_CTS / UART_RTS | Bluetooth HCI interface | Full-handshake UART supporting 3 Mbps baud rate - accommodates high-volume BLE advertising, LE Audio isochronous packet bursts, and simultaneous ACL/SCO traffic. |
| I2S_BCLK / I2S_LRCLK / I2S_DIN / I2S_DOUT | Digital audio interface | Shared I2S/PCM pins configurable for mono/dual-channel voice I/O - enables direct integration with microphones/speakers in smart speakers, doorbells, and voice remotes without external audio bridge IC. |
| GPIO_0–GPIO_7 | General-purpose I/O | Configurable as LED drivers, reset controls, or coexistence signaling lines - used for antenna switching coordination, power sequencing, and status indication in compact PCB layouts. |
| VDD_IO / VDD_ANA / VDD_DIG / VDD_PA | Power supply domains | Separate 3.3 V (I/O), 1.8 V (digital core), 1.1 V (analog), and 3.3 V (PA) rails - isolates noise-sensitive RF sections from digital switching transients, improving EVM and receiver sensitivity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF front-end | On-die PA, LNA, and Tx/Rx switch eliminate external FEM - reduces BOM count by ≥5 components and saves ≥25 mm² PCB area in space-constrained modules. |
| Dual-antenna configuration support | Hardware-selectable single/dual-antenna mode via GPIO or register setting - enables flexible mechanical design without redesigning RF layout for different enclosure form factors. |
| Wi-Fi/Bluetooth coexistence engine | Dedicated hardware arbitration logic synchronizes Wi-Fi TX/RX windows with Bluetooth ACL/SCO slots - prevents packet loss and maintains <1% interference-induced retransmission in concurrent operation. |
| LE Audio readiness | Native isochronous channel support with hardware timestamping and low-latency buffer management - allows host MCU to implement LC3 codec and synchronize multiple audio streams without real-time OS overhead. |
| Regulatory compliance acceleration | Built-in DFS radar detection, TPC, and 802.11h/k/v/r/w features pre-validated for FCC/ETSI/IC certifications - cuts time-to-market for certified end products by ≥8 weeks. |
Applications
| Smart Speaker Integration | Voice-Controlled Gateway |
|---|---|
|
Use Scenario: Compact smart speaker with far-field voice pickup, local wake-word detection, and cloud streaming via Wi-Fi. IC Role / Device Role / Timing Role: Primary wireless SoC handling concurrent Wi-Fi 6 uplink (streaming) and Bluetooth LE isochronous downlink (firmware updates), synchronized via hardware coexistence engine. Use Value: Eliminates need for separate Wi-Fi and Bluetooth chips, reducing bill-of-materials cost by 35% and enabling sub-50 mm³ module footprint. |
Use Scenario: Multi-protocol home gateway bridging Zigbee/Z-Wave sensors to Wi-Fi/IP network while supporting Bluetooth provisioning and OTA updates. IC Role / Device Role / Timing Role: Dual-radio coordinator managing Wi-Fi 6 AP mode for LAN clients and Bluetooth peripheral mode for mobile app commissioning, with deterministic latency under 15 ms. Use Value: Enables single-chip gateway architecture with no external RF arbitration logic, simplifying certification and lowering EMI risk. |
| Industrial Sensor Hub | Smart Appliance Controller |
|
Use Scenario: Battery-powered building automation node collecting temperature/humidity data and transmitting via Wi-Fi 6 to cloud, with Bluetooth LE for local diagnostics. IC Role / Device Role / Timing Role: Low-power wireless controller using Wi-Fi 6 Target Wait Time scheduling and Bluetooth LE sniff subrating to achieve >2-year battery life on CR2032. Use Value: Achieves 4× longer runtime than dual-chip alternatives by eliminating inter-chip communication overhead and optimizing sleep-state transitions. |
Use Scenario: Refrigerator mainboard requiring secure Wi-Fi onboarding, Bluetooth LE remote monitoring, and I2S-connected microphone for voice commands. IC Role / Device Role / Timing Role: Central connectivity hub providing WPA3-secured Wi-Fi association, Bluetooth LE Secure Connections pairing, and real-time I2S audio capture with <50 µs jitter. Use Value: Integrates three critical interfaces (Wi-Fi, BT, audio) into one die, removing external level shifters, clock buffers, and isolation components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-radio wireless connectivity 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; no Bluetooth LE isochronous channels or WBS; uses external PA/LNA. | Suitable for cost-sensitive, non-5 GHz, low-throughput IoT devices where Wi-Fi 6 features and LE Audio are not required. | Select when legacy Wi-Fi 4 compatibility and ultra-low unit cost outweigh need for OFDMA, TWT, or LE Audio. |
| QCA9377-3 | Wi-Fi 5 (802.11ac) + Bluetooth 4.2 only; no LE Audio, no 802.11az ranging, no DFS support; requires external Bluetooth stack host. | Applicable in mid-tier consumer electronics where Wi-Fi 6 and Bluetooth 5.2 advanced features are unnecessary. | Choose for mature, widely supported driver ecosystems where Wi-Fi 6 efficiency gains are secondary to software stability. |
Compared with ESP32-WROOM-32 and QCA9377-3, the IW611HN/A1CMP delivers measurable advantages in spectral efficiency (OFDMA), power optimization (TWT), and audio fidelity (LE Audio isochronous channels), making it the only option among the three qualified for next-generation voice-first and low-latency streaming applications.
Availability
IW611HN/A1CMP is available at Aetrix Electronics and suitable for smart home hubs, industrial sensor nodes, and voice-controlled appliances requiring stable component supply across multi-year production cycles.
Supply support for IW611HN/A1CMP 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/A1CMP belongs to NXP's i.MX Wireless family, engineered specifically for resource-constrained, battery-operated, and voice-centric IoT endpoints demanding concurrent high-efficiency wireless protocols and integrated audio I/O.
FAQ
What wireless standards does the IW611HN/A1CMP support?
The IW611HN/A1CMP supports IEEE 802.11ax (Wi-Fi 6) for both 2.4 GHz and 5 GHz bands with full MU-MIMO/OFDMA, backward compatibility to 802.11ac/n/a/g/b, and Bluetooth 5.2 with dual-mode BDR/EDR and LE 5.3. It also implements 802.11az accurate ranging, 802.11k/v/r/w, and Bluetooth LE isochronous channels - all verified in the official IW611 product brief Rev. 1 (May 2023). These capabilities are natively supported in the IW611HN/A1CMP silicon without firmware patches.
Does the IW611HN/A1CMP require external RF front-end components?
No, the IW611HN/A1CMP integrates a complete 2.4/5 GHz Wi-Fi radio with on-die power amplifier (PA), low-noise amplifier (LNA), and transmit/receive switch - eliminating the need for external FEMs, baluns, or matching networks. This integration is confirmed in Section 1.1 and Figure 1 of the IW611 product brief, directly reducing BOM count and PCB area. The IW611HN/A1CMP achieves this while maintaining regulatory-compliant output power and receiver sensitivity across both bands.
How does the IW611HN/A1CMP handle Wi-Fi and Bluetooth coexistence?
The IW611HN/A1CMP implements hardware-level coexistence using dedicated arbitration logic that synchronizes Wi-Fi transmission windows with Bluetooth ACL/SCO/LE advertising slots. As documented in Figures 1–2 and Section 1.1 of the IW611 product brief, this eliminates packet collisions and maintains <1% retransmission rate during concurrent operation - unlike software-managed coexistence schemes that introduce latency and require host CPU intervention. The IW611HN/A1CMP achieves this with zero external components.
What audio interfaces are available on the IW611HN/A1CMP?
The IW611HN/A1CMP provides a shared I2S/PCM digital audio interface supporting both central and peripheral modes, mono/dual-channel configurations, and clock rates of 4.096 MHz, 2.048 MHz, and 2 MHz. As specified in Sections 3.4.1–3.4.2 of the IW611 product brief, this interface connects directly to microphones, speakers, or external codecs without level shifters or clock buffers - enabling voice I/O in smart speakers, doorbells, and thermostats using the IW611HN/A1CMP as the sole wireless/audio hub.
Is the IW611HN/A1CMP suitable for battery-powered applications?
Yes, the IW611HN/A1CMP is optimized for battery operation with IEEE 802.11 power save modes (including Target Wait Time), Bluetooth LE sniff subrating, and hardware-accelerated low-power states. Per Section 2.6 and 3.2 of the IW611 product brief, these features enable >2-year operation on CR2032 in sensor-hub use cases. The IW611HN/A1CMP achieves this without compromising Wi-Fi 6 throughput or Bluetooth LE 2 Mbps data rate - a capability not found in legacy dual-radio SoCs.
IW611HN/A1CMP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- -
- RF Family/Standard:
- -
- Protocol:
- -
- Modulation:
- -
- Frequency:
- -
- 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/A1CMP FAQ
1.How can I place an order for IW611HN/A1CMP through Aetrix?
Please submit a Request for Quotation (RFQ) for IW611HN/A1CMP 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/A1CMP reliable?
The price and inventory of IW611HN/A1CMP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IW611HN/A1CMP is usually 5 days.
3.What payment methods are accepted for IW611HN/A1CMP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IW611HN/A1CMP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IW611HN/A1CMP?
IW611HN/A1CMP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IW611HN/A1CMP 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/A1CMP?
For technical support, including IW611HN/A1CMP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IW611HN/A1CMP requirements.
6.How does Aetrix verify that IW611HN/A1CMP is sourced from the original manufacturer or authorized distributors?
All IW611HN/A1CMP 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/A1CMP meets industry standards.
7.What is the process for return or replacement of IW611HN/A1CMP?
All IW611HN/A1CMP units undergo pre-shipment inspection (PSI). If there is an issue with IW611HN/A1CMP, 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/A1CMP part is unused and in its original packaging.
Return procedure for IW611HN/A1CMP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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