series Marvell Avastar 88W8790 SoC Bluetooth/FM Single-Chip SoC PRODUCT OVERVIEW The Marvell® Avastar™ 88W8790 is a highly integrated system-on-a-chip (SoC) that integrates Bluetooth and FM radio functions. It is specifically designed to support high throughput data rates for next-generation products and is part of the Marvell Avastar family of wireless devices. The Avastar family includes single-function and multifunction radios that establish new industry benchmarks for power consumption, wireless performance, solution footprint and advanced features. The Marvell Avastar 88W8790 is designed to support Bluetooth 3.0 (also supports Bluetooth 2.1 + EDR features) and both FM transmit and receive (digital encoder/decoder FM radio with RDS/RBDS) operation. The 88W8790 supports generic interfaces including SDIO, SPI (G-SPI), high-speed UART, and PCM for connecting the Bluetooth core to the host processor. For FM Tx/Rx, the device supports Inter-IC Sound (I2S) / analog stereo audio interfaces. An I2C-compatible interface is available to connect the FM Tx/Rx to the host processor, as well. The FM Tx/Rx can also share the host interface with Bluetooth. The device supports a coexistence interface for external, co-located 2.4 GHz radios. The 88W8790 is available in two TFBGA package options. BLOCK DIAGRAM Audio Interface 2 I S Audio Codec Interface FM Tx/Rx Audio Codec Controller RF Input FM RF Interface/ FM RF RF Output Bluetooth Baseband/RF I 2 S/PCM Sleep Clock Processor JTAG Interface Marvell Feroceon CPU CPU Interface ROM Interrupts JTAG Timers Bluetooth Power Management XTAL_IN XTAL_OUT C P U Common Analog Unit Power Down Coexistence Interface (external co-located 2.4 GHz radio) Power Management LDO B u s Battery/Low Voltage LDO GPIO Clocked Serial Unit SRAM Host Interfaces Peripheral Bus 3-Wire, 4-Wire Interface 2-Wire Serial Interface 1-Wire Serial Interface Memory B U S Peripheral Bus Unit SDIO SDIO G-SPI G-SPI UART GPIO/LED I 2 C-compatible Fig 1. Avastar 88W8790 SoC Block Diagram 1. Antenna can be used as an option to enhance performance 1 High-Speed UART I 2 C-compatible (slave from Host) series Marvell Avastar 88W8790 SoC SPECIFICATIONS APPLICATIONS BLUETOOTH (continued) • Bluetooth/FM enabled cellular handsets • HCI layer verified to function with major profile stack vendors • Portable audio/video devices and accessories • SCO/eSCO links with hardware accelerated audio signal processing and hardware supported PPEC algorithm for speech quality improvement • Personal navigation devices • All standard SCO/eSCO voice coding • Personal digital assistants • All standard pairing, authentication, link key, and encryption operations • Gaming platforms • Standard Bluetooth power saving mechanisms (i.e., hold, sniff modes) • Enhanced low power scan mode • Dynamic Transmit Power Control (TPC) GENERAL FEATURES • Simultaneous and independent Bluetooth, and FM Tx/Rx operation • Coexistence with cellular and other on-chip radios • Low power dissipation • Channel Quality Driven (CQD) data rate • SBC off load for A2DP streaming • Wideband Speech Support • CMOS and low-swing sine wave input clock • Digital audio interfaces (I2S and PCM) • 12, 13, 19.2, 24, 26, 38.4, and 52 MHz crystal clock support with autofrequency detection using external 32.768 KHz CMOS-level sleep clock • Power management with external sleep clock support for FM Tx/Rx operation • Sleep and standby modes for low power operation • Fully compatible with Marvell Power Management device(s) PACKAGING FM RADIO • Worldwide FM band—76–108 MHz • Full Tx/Rx operation with main clock as well as 32.768 kHz external sleep clock • Channel spacing/frequency step size (50 kHz steps) • Stereo analog and digital (I2S) output for Rx • Stereo digital (I2S) input for Tx FM Rx PATH • 64-pin TFBGA • FM/RDS/RBDS receiver • Automatic frequency control (AFC) • Auto search tuning PROCESSOR • Softmute • CPU - Integrated Marvell Feroceon CPU (ARMv5TE-compliant) ® - 64 MHz maximum CPU clock speed • Audio mute • Mono/stereo blending (signal dependent) • Digital FM demodulation • RDS data buffer MEMORY • Internal SRAM for Tx frame queues/Rx data buffers • Boot ROM • ROM patching capability • FM audio routed internally as SCO source • Programmable pre/de-emphasis (50/75 µs) • TMC (traffic alert) supported • Enable/disable stereo mode • FM audio option to turn off CPU if no RDS • Audio silence detection BLUETOOTH • Alternate frequency • Bluetooth 3.0 (also compliant with Bluetooth 2.1 + EDR) • Bluetooth Class 2 • Bluetooth Class 1 • Single-ended, shared Tx/Rx path for Bluetooth • Digital audio interfaces including PCM interface for voice applications and I2S for digital stereo applications FM Tx PATH • FM/RDS/RBDS transmitter • RDS data buffer • High Tx output power (+125 dBµVrms) for loop antenna • Baseband and radio BDR and EDR packet types—1 Mbps (GFSK), 2 Mbps (p/4-DQPSK), and 3 Mbps (8DPSK) • Auto scan for channel selection • Fully functional Bluetooth baseband—AFH, forward error correction, header error control, access code correlation, CRC, encryption bit stream generation, and whitening • Audio mute • Adaptive Frequency Hopping (AFH) including Packet Loss Rate (PLR) • Auto channel sync through RDS • Audio Automatic Gain Control (AGC) • Compensation for 32 kHz clock error • Interlaced scan for faster connection setup • Simultaneous active ACL connection support • Automatic ACL packet type selection • Full master and slave piconet support • Scatternet support • Standard UART, G-SPI, and SDIO HCI transport layer COEXISTENCE • Coexistence interface for external, co-located 2.4 GHz radio - Marvell 3/4-wire interface - WL_ACTIVE 3/4-wire interface - WL_ACTIVE 2-wire interface series Marvell Avastar 88W8790 SoC SPECIFICATIONS HOST INTERFACES • SDIO device interface (1-bit SDIO transfer mode at full clock range up to 25 MHz) • G-SPI device interface • High speed UART interface • Optional I2C-compatible slave interface for FM control PERIPHERAL BUS INTERFACES • Clocked Serial Unit (CSU) - 3-Wire, 4-Wire Serial Interface - 2-Wire Serial Interface - 1-Wire Serial Interface • General Purpose Input Output (GPIO) AUDIO INTERFACES • Audio Codec Interface - Marvell Class D Audio Amplifier - TWSI interface for Audio Codec programming - I2S (Inter-IC Sound) interface for audio data connection to Digital-toAnalog Converters (DAC) - Master and slave mode for I2S, MSB, and LSB audio interfaces - Tri-state I2S interface capability • PCM Interface - Master or slave mode - PCM bit width size of 8 bits or 16 bits - Up to 4 slots with configurable bit width and start positions - Short frame and long frame synchronization - Tri-state PCM interface capability TEST • On-chip diagnostic information series Marvell Avastar 88W8790 SoC THE MARVELL ADVANTAGE: Marvell chipsets come with complete reference designs which include board layout designs, software, manufacturing diagnostic tools, documentation, and other items to assist customers with product evaluation and production. Marvell’s worldwide field application engineers collaborate closely with end customers to develop and deliver new leading-edge products for quick time-to-market. Marvell utilizes worldleading semiconductor foundry and packaging services to reliably deliver high-volume and low-cost total solutions. ABOUT MARVELL: Marvell is a leader in storage, communications, and consumer silicon solutions. Marvell’s diverse product portfolio includes switching, transceiver, communications controller, processor, wireless, power management, and storage solutions that power the entire communications infrastructure, including enterprise, metro, home, storage, and digital entertainment solutions. For more information, visit our Web site at www.marvell.com. Marvell Semiconductor, Inc. 5488 Marvell Lane Santa Clara, CA 95054 Phone 408.222.2500 www.marvell.com Copyright © 2010. Marvell International Ltd. All rights reserved. Marvell, Moving Forward Faster, the Marvell logo, Alaska, AnyVoltage, DSP Switcher, Fastwriter, Feroceon, Libertas, Link Street, PHYAdvantage, Prestera, TopDog, Virtual Cable Tester, Yukon, and ZJ are registered trademarks of Marvell or its affiliates. Armada, Avastar, CarrierSpan, LinkCrypt, Marvell Smart, PowerSmart PFC, Powered by Marvell Green PFC, Qdeo, QuietVideo, Sheeva, TwinD, and VCT are trademarks of Marvell or its affiliate. All other trademarks are the property of their respective owners. Avastar_88W8790-02 6/10