Infineon/CYPRESS BCM89335L2CUBGT

The Cypress CYW88335 single-chip device provides the highest level of integration for Automotive In-Vehicle Infotainment connectivity systems with integrated single-stream IEEE 802.11ac MAC/baseband/radio, Bluetooth 4.1. In IEEE 802.11ac mode, the WLAN operation supports rates of MCS0–MCS9 (up to 256 QAM) in 20 MHz, 40 MHz, and 80 MHz channels for data rates up to 433.3 Mbps. In addition, all the rates specified in IEEE 802.11a/b/g/n are supported. Included on-chip are 2.4 GHz and 5 GHz transmit amplifiers, and receive low-noise amplifiers. Optional external PAs, LNAs, and antenna diversity are also supported. The CYW88335 offers an SDIO v3.0 interface for high speed 802.11ac connectivity. The Bluetooth host controller is interfaced over a 4-wire high speed UART and includes PCM for audio. The CYW88335 brings the latest mobile connectivity technology to automotive infotainment, telematics and rear seat entertainment. Offering Automotive Grade 3 ( -40°C to +85°C ) temperature performance, the CYW88335 is tested to AECQ100 environmental stress guidelines and manufactured in ISO9001 and TS16949 certified facilities. The CYW88335 implements highly sophisticated enhanced collaborative coexistence hardware mechanisms and algorithms, which ensure that WLAN and Bluetooth collaboration is optimized for maximum performance. In addition, coexistence support for external radios (such as LTE cellular, GPS, and WiMAX) is provided via an external interface. As a result, enhanced overall quality for simultaneous voice, video, and data transmission is achieved.

• IEEE 802.11x Key Features
• IEEE 802.11ac compliant.
• Single-stream spatial multiplexing up to 433.3 Mbps data rate.
• Supports 20, 40, and 80 MHz channels with optional SGI (256 QAM modulation).
• Full IEEE 802.11a/b/g/n legacy compatibility with enhanced performance.
• TX and RX low-density parity check (LDPC) support for improved range and power efficiency.
• Supports RX space-time block coding (STBC)
• Supports IEEE 802.11ac/n beamforming.
• On-chip power amplifiers and low-noise amplifiers for both bands.
• Support for optional front-end modules (FEM) with external PAs and LNAs
• Shared Bluetooth and WLAN receive signal path eliminates the need for an external power splitter while maintaining excellent sensitivity for both Bluetooth and WLAN.
• Internal fractional nPLL allows support for a wide range of reference clock frequencies
• Supports IEEE 802.15.2 external coexistence interface to optimize bandwidth utilization with other co-located wireless technologies such as LTE, GPS, or WiMAX
• Supports standard SDIO v3.0 (including DDR50 mode at 50 MHz and SDR104 mode at 208 MHz, 4-bit and 1-bit), and gSPI (48 MHz) host interfaces.
• Backward compatible with SDIO v2.0 host interfaces.
• Integrated ARMCR4 processor with tightly coupled 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 768 KB SRAM and 640 KB ROM.
• OneDriver software architecture for easy migration from existing embedded WLAN and Bluetooth devices as well as future devices.
• Bluetooth Key Features
• Complies with Bluetooth Core Specification Version 4.1 for automotive applications with provisions for supporting future specifications.
• 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 highspeed UART interface and PCM for audio data.
• Supports multiple simultaneous Advanced Audio Distribution Profiles (A2DP) for stereo sound.
• Automatic frequency detection for standard crystal and TCXO values.
• Supports low energy host wake-up for long term system sleep capability.
• General Features
• Supports battery voltage range from 3.0V to 4.8V supplies with internal switching regulator.
• Programmable dynamic power management
• OTP: 502 bytes of user-accessible memory
• Nine GPIOs
• Security: WPA and WPA2 (Personal) support for powerful encryption and authentication, AES and TKIP in hardware for faster data encryption and IEEE 802.11i compat