Infineon/CYPRESS CYW43438KUBGT

The Cypress CYW43438 is a highly integrated single-chip solution and offers the lowest RBOM in the industry for smartphones, tablets, and a wide range of other portable devices. The chip includes a 2.4 GHz WLAN IEEE 802.11 b/g/n MAC/baseband/radio, and Bluetooth 5.1 compliance. In addition, it integrates a power amplifier (PA) that meets the output power requirements of most handheld systems, a low-noise amplifier (LNA) for best-in-class receiver sensitivity, and an internal transmit/receive (iTR) RF switch, further reducing the overall solution cost and printed circuit board area. The WLAN host interface supports gSPI and SDIO 2.0 modes, providing a raw data transfer rate up to 200 Mbps when operating in 4-bit mode at a 50 MHz bus frequency. An independent, high-speed UART is provided for the Bluetooth host interface. Using advanced design techniques and process technology to reduce active and idle power, the CYW43438 is designed to address the needs of highly mobile devices that require minimal power consumption and compact size. It includes a power management unit that simplifies the system power topology and allows for operation directly from a rechargeable mobile platform battery while maximizing battery life.

• Single-band 2.4 GHz IEEE 802.11b/g/n.
• Support for 2.4 GHz Broadcom TurboQAM data rates (256 - QAM) and 20 MHz channel bandwidth.
• Integrated iTR switch supports a single 2.4 GHz antenna shared between WLAN and Bluetooth.
• Supports explicit IEEE 802.11n transmit beamforming.
• Tx and Rx Low - density Parity Check (LDPC) support for improved range and power efficiency.
• Supports standard SDIO 2.0 and gSPI host interfaces.
• Supports Space - Time Block Coding (STBC) in the receiver.
• Integrated ARM Cortex - M3 processor and on - chip memory for complete WLAN subsystem functionality, minimizing the need to wake up the applications processor for standard WLAN functions. This allows for further minimization of power consumption, while maintaining the ability to field upgrade with future features. On - chip memory includes 512 KB SRAM and 640 KB ROM.
• OneDriver software architecture for easy migration from existing embedded WLAN and Bluetooth devices as well as to future devices.
• Qualified for Bluetooth Core Specification 5.1 compliance ❐QDID: 100820 ❐Declaration ID: D035240.
• Supports Bluetooth 5.0's LE Secure Connections.
• Bluetooth Class 1 or Class 2 transmitter operation.
• Supports extended Synchronous Connections (eSCO), for enhanced voice quality by allowing for retransmission of dropped packets.
• Adaptive Frequency Hopping (AFH) for reducing radio frequency interference.
• Interface support — Host Controller Interface (HCI) using a high - speed UART interface and PCM for audio data.
• Low - power consumption improves battery life of handheld devices. Supports multiple simultaneous Advanced Audio Distribution Profiles (A2DP) for stereo sound.
• Automatic frequency detection for standard crystal and TCXO values.
• Supports a battery voltage range from 3.0V to 4.8V with an internal switching regulator.
• Programmable dynamic power management.
• 4 Kbit One - Time Programmable (OTP) memory for storing board parameters.
• Can be routed on low - cost 7×1 PCB stack - ups. 63 - ball WLBGA package (4.87 mm × 2.87 mm, 0.4 mm pitch).
• WPA and WPA2 (Personal) support for powerful encryption and authentication.
• AES in WLAN hardware for faster data encryption and IEEE 802.11i compatibility.
• Reference WLAN subsystem provides Wi–Fi Protected Setup (WPS).
• Worldwide regulatory support: Global products supported with worldwide homologated design.

• smartphones
• tablets
• other portable devices