BCM4334 Datasheet | Cypress

DESCRIPTION The Broad® BCM4334X single-chip device provides the highest level of integration for a mobile or handheld wireless system, with integrated IEEE 802.11 a/b/g and single-stream IEEE 802.11n MAC/baseband/radio, Bluetooth 4.0 + HS, and FM radio receiver. It is designed to be used with external 2.4 GHz and 5 GHz front-end modules, which include power amplifiers, low-noise amplifiers, and T/R switches. Using advanced design techniques and process technology to reduce active and idle power, the BCM4334X is designed to address the needs of highly mobile devices that require minimal power consumption and pact size. It includes a power management unit which simplifies the system power topology and allows for operation directly from a mobile platform battery while maximizing battery life. FEATURES The BCM4334X implements the highly sophisticated Enhanced Collaborative Coexistence algorithms and hardware mechanisms, allowing for an extremely collaborative Bluetooth coexistence scheme along with coexistence support for external radios (such as cellular and LTE, GPS, Wi MAX, and Ultra-Wideband) and a single shared 2.4 GHz antenna for Bluetooth and WLAN. As a result, enhanced overall quality for simultaneous voice, video, and data transmission on a handheld system is achieved. For the WLAN section, two alternative host interface options are included: an SDIO v2.0 interface (including g SPI) and a High-Speed Inter-Chip (HSIC) interface (a USB 2.0 derivative for short-distance onboard connections). An independent, high-speed UART is provided for the Bluetooth host interface. Figure 1: Functional Block Diagram VIO VBAT WLAN Host I/F Bluetooth Host I/F WL_REG_ON WL_IRQ SDIO- /SPI HSIC CLK_REQ BT_REG_ON PCM/I2S BT_DEV_WAKE BT_HOST_WAKE UART 5 GHz WLAN Tx 5 GHz WLAN Rx 2.4 GHz WLAN Tx 2.4 GHz WLAN/BT Rx Bluetooth Tx FM Rx Host I/F I2S FM Rx 5300 California Avenue - Irvine, CA 92617 - Phone: 949-926-5000 - Fax: 949-926-5203 4334XCT-DS1XX3-RI...