Infineon CYW54591RKUBGT

The CYW5459x is a complete dual-band (2.4 GHz and 5 GHz) Wi-Fi 5 2×2 MIMO MAC/PHY/radio system-on-chip. This Wi-Fi 5 single-chip device features highly integrated dual-stream IEEE 802.11ac MAC/baseband/radio and Bluetooth 5.1. In IEEE 802.11ac mode, WLAN operation supports MCS0–MCS9 (up to 256 QAM) rates across 20 MHz, 40 MHz, and 80 MHz channels, with data rates up to 867 Mbps. All IEEE 802.11a/b/g/n rates are also supported. The on-chip Wi-Fi 5 integrates 2.4 GHz and 5 GHz transmit power amplifiers and receive low-noise amplifiers. WLAN operation supports 2×2 MIMO as well as two fully simultaneous SISO channels — one at 2.4 GHz and one at 5 GHz — enabling dual-band real-time simultaneous dual-band (RSDB) operation. For the WLAN subsystem, the device interfaces with the host SoC processor via a PCIe v3.0-compatible interface running at Gen1 speed and an SDIO v3.0 interface operable in 4b or 1b mode. For the Bluetooth subsystem, the host interface connects via a high-speed 4-wire UART interface and a PCM interface for audio. In addition, the CYW5459x implements highly sophisticated enhanced collaborative coexistence hardware mechanisms and algorithms to ensure optimal WLAN and Bluetooth cooperative performance. Coexistence support for external radios such as LTE cellular and GPS is provided through an external interface. This delivers an overall improvement in simultaneous voice, video, and data transmission quality on commercial/consumer systems. The CYW5459x enables fast data streaming with low latency, making it well suited for HD video streaming and high-quality audio streaming applications such as smart speakers, gaming, VR, smart TVs, multi-room audio, as well as industrial applications including industrial gateways and edge computing.

• IEEE 802.11ac Wave-2 compliant.
• Dual-stream spatial multiplexing, data rates up to 867 Mbps.
• Supports 20, 40, and 80 MHz channels with optional short guard interval (256 QAM modulation).
• Full backward compatibility with IEEE 802.11a/b/g/n legacy standards with enhanced performance.
• Supports IEEE 802.11ac/n beamforming.
• Supports real-time simultaneous dual-band.
• On-chip power amplifiers and LNAs for both bands. External LNA also supported.
• Supports three antennas: one dedicated to Bluetooth and two for WLAN. Features shared Bluetooth and WLAN receive signal path, eliminating the need for an external power splitter while maintaining high sensitivity for both Bluetooth and WLAN.
• Supports multi-point external coexistence interface to optimize bandwidth utilization with other co-located wireless technologies such as LTE and GPS.
• PCIe mode compliant with PCI Express Base Specification Revision 3.0 for ×1 lane and power management operating at Gen1 speed.
• Supports standard SDIO v3.0 host interface. Backward compatible with SDIO v2.0 host interface.
• Supports WPA, WAPI STA, WPA2, and WPA3 (Personal) for robust encryption and authentication.
• Hardware support for AES and TKIP for faster data encryption and IEEE 802.11i compliance.
• Reference WLAN subsystem provides Wi-Fi Protected Setup.
• Worldwide product support with globally certified design.
• Integrated Arm Cortex-R4 processor with tightly coupled memory for complete WLAN subsystem functionality, minimizing the need to wake the application processor for standard WLAN functions. This allows further minimization of power consumption while retaining the ability to field-upgrade with future features. On-chip memory includes 896 KB SRAM and 896 KB ROM.
• Supports Bluetooth 5.1 optional features: Angle of Arrival (AoA), Angle of Departure (AoD), GATT Caching, and LE Power Control.
• Supports all Bluetooth 5.0 optional features including LE-2Mbps, LE Long Range, and LE Advertising Extensions.
• Bluetooth Class 1 or Class 2 transmitter operation.
• Supports Extended Synchronous Connections to enhance voice quality by allowing retransmission of lost packets.
• Adaptive frequency hopping for RF interference reduction.
• Host Controller Interface support using high-speed UART interface and PCM for audio data.
• Supports multiple simultaneous Advanced Audio Distribution Profiles for stereo.
• Automatic frequency detection for standard crystal and TCXO values.
• Supports serial flash interface.
• Supports battery supply ranging from 3.0 V to 4.8 V with internal voltage regulator.
• Programmable dynamic power management.
• Supports 1410 bytes of user-accessible OTP memory: 256 bytes allocated to Bluetooth and 1150 bytes allocated to WLAN for board parameter storage.
• General-purpose I/O: 20.
• 194-ball WLBGA package (5.16 mm × 7.7 mm, 0.4 mm pitch).

• Smart Speaker
• Gaming
• VR
• Smart TV
• Industrial Gateway