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 specifcally 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 multi- function 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 in - terface 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 fig 1. avastar 88W8790 soc block diagram 1 c p u b u s i s au di o co de c inte rf ac e a udi o co de c co nt ro ll er a udi o in te rf ac e sr am me mo ry jt ag inte rf ac e marvel l fe ro ce on cp u pr oc esso r jt ag cp u in te rf ac e inte rr upts ti me rs ro m pe ri ph er al bu s b u s ho st in te rf aces fm tx /rx fm rf inte rf ac e/ fm rf rf ou tput sl eep cl oc k po we r management co mmon an al og un it ld o po we r do wn battery/low vo lt age ld o xt a l_i n xt a l_out pe ri phe ra l bu s un it rf input bl ue t oot h bl uetooth ba se band/r f i s/ pc m co ex is tenc e inte rf ac e (external co-located 2.4 ghz radio ) po we r management sd io sd io g- sp i ua rt high-s peed ua rt i c- co mpat ib le (slave from host) cl o cke d se ri al un it 1- wi re se ri al inte rf ac e 2- wi re se ri al inte rf ac e 3-wire, 4- wi re inte rf ac e gp io/led gp io g- sp i 2 2 i c- co mpat ib le 2 2 1. antenna can be used as an option to enhance performance
series marvell avastar 88W8790 soc applications ? bluetooth/fm enabled cellular handsets ? portable audio/video devices and accessories ? personal navigation devices ? personal digital assistants ? gaming platforms general features ? simultaneous and independent bluetooth, and fm tx/rx operation ? coexistence with cellular and other on-chip radios ? low power dissipation ? 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 auto- frequency 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 ? 64-pin tfbga processor ? cpu - integrated marvell feroceon ? cpu (armv5te-compliant) - 64 mhz maximum cpu clock speed memory ? internal sram for tx frame queues/rx data buffers ? boot rom ? rom patching capability bluetooth ? 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 ? baseband and radio bdr and edr packet types1 mbps (gfsk), 2 mbps ( p/4-dqpsk), and 3 mbps (8dpsk) ? fully functional bluetooth basebandafh, forward error correction, header error control, access code correlation, crc, encryption bit stream generation, and whitening ? adaptive frequency hopping (afh) including packet loss rate (plr) ? 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 specifications bluetooth (continued) ? hci layer verifed to function with major profle stack vendors ? sco/esco links with hardware accelerated audio signal processing and hardware supported ppec algorithm for speech quality improvement ? all standard sco/esco voice coding ? all standard pairing, authentication, link key, and encryption operations ? standard bluetooth power saving mechanisms (i.e., hold, sniff modes) ? enhanced low power scan mode ? dynamic transmit power control (tpc) ? channel quality driven (cqd) data rate ? sbc off load for a2dp streaming ? wideband speech support fm radio ? worldwide fm band76C108 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 ? fm/rds/rbds receiver ? automatic frequency control (afc) ? auto search tuning ? softmute ? audio mute ? mono/stereo blending (signal dependent) ? digital fm demodulation ? rds data buffer ? fm audio routed internally as sco source ? programmable pre/de-emphasis (50/75 s) ? tmc (traffc alert) supported ? enable/disable stereo mode ? fm audio option to turn off cpu if no rds ? audio silence detection ? alternate frequency fm tx path ? fm/rds/rbds transmitter ? rds data buffer ? high tx output power (+125 dbvrms) for loop antenna ? auto scan for channel selection ? auto channel sync through rds ? audio mute ? audio automatic gain control (agc) ? compensation for 32 khz clock error 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 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 amplifer - twsi interface for audio codec programming - i2s (inter-ic sound) interface for audio data connection to digital-to- analog 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 confgurable bit width and start positions - short frame and long frame synchronization - tri-state pcm interface capability test ? on-chip diagnostic information 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. marvells worldwide feld application engineers collaborate closely with end customers to develop and deliver new leading-edge products for quick time-to-market. marvell utilizes world- leading 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. marvells 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 . 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 affliates. 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 affliate. all other trademarks are the property of their respective owners. avastar_88W8790-02 6/10 marvell semiconductor, inc. 5488 marvell lan e santa clara, ca 95054 phone 408.222.2500 www.marvell.com series marvell avastar 88W8790 soc
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