博通BCM2153HEDGE多媒体方案

Broadcom 公司的BCM2153 是单片HEDGE多媒体基带处理器，具有WCDMA, 7.2-Mbps HSDPA以及EDGE Class 12的功能，完全支持2G和3G语音与高速数据，支持EDGE/GPRS/GSM 和HSDPA/WCDMA网络的全球无缝漫游。BCM2153在单片上集成了所有的多媒体，模拟和立体声音频功能，以及USB2.0所需的模拟PHY，不需外接元件就能达到USB2.0 480 Mbps的速率。本文介绍了BCM2153的主要特性，和同类产品相比的主要优势，方框图以及BCM2153系统应用方框图。

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The BCM2153 single-chip HEDGE multimedia baseband processor features WCDMA, 7.2-Mbps HSDPA, and EDGE Class 12 capability to provide full support for 2G and 3G voice and high-speed data. Full inter-RAT operation is supported for seamless global roaming on EDGE/GPRS/GSM and HSDPA/WCDMA networks worldwide.

The BCM2153 integrates all multimedia, analog, and stereo audio functions on a single, monolithic piece of silicon, which avoids the added cost of diestacking and provides for lower power operation and lower BOM cost.

Full stereo music capability is integrated, including high-performance stereo DACs for both headset and stereo speakers, with integrated 5-band graphic equalizer and digital mixing, thus eliminating the need for an external audio device. On-chip stereo output is provided for up to 400 mW into 8?.

The BCM2153 also integrates the analog PHY required for USB2.0, providing full USB2.0 480 Mbps, with no external components and supporting USB charging and audio functions.
Advanced video acceleration for QVGA 30-fps H.264 and MPEG for both camera and video playback allows for high-quality video support and low power, low MIPS.

Broadcoms proprietary M-Stream high-performance modem technology and SAIC advanced signal processing technologies improve cellular handset reception and voice quality while increasing network capacity, without sacrificing callquality.

The BCM2153 utilizes an advanced release 6-compliant Direct Matrix Inversion (DMI) equalizer for the highest HSDPA data throughput in the most challenging radio conditions—which offers high performance without the need for costly receiver diversity.

Separate parallel LCD, camera, and ARM memory busses allow the user interface to be updated without impacting the real-time radio operations.

Security
Enhanced security is provided with one-time programmable (OTP) and dedicated HW blocks, to provide secure boot, memory, and DRM functions.

The embedded OTP bits allow the software to boot securely and to check IMEI security prior to network activation. OTP bits can also be used by highlevel applications to verify the integrity of the Digital Rights Management (DRM) function.

主要特性：
General characteristics
Single-chip, single-die, 7.2-Mbps HSDPA/EDGE baseband processor
Complete system-on-a-chip, high-end multimedia with advanced audio, high-speed 480-Mbps USB 2.0 OTG, full mixed-signal support for speakers, stereo DAC audio amplifiers, and USB transceivers, with full security, DRM and high-performance 312-MHz ARM11? applications processor
Advanced release 6-compliant equalizer and 208-Mhz ARM9? for communications
Utilizes the lowest cost, lowest power 65-nm digital CMOS process
Compact 11 mm x 11 mm 428-pin FBGA package for low-cost PCB design
Multimedia capabilities
Supports up to 3.2-Mpixel camera (15-fps refresh)
30-fps full-rate H.264, H.263, WMV9, and MPEG4 at high-quality QVGA resolution
Supports both encode and decode at H.264, for best quality and memory usage
Up to 262K colors, dual-panel display support
Extensive graphics, video, and imaging hardware acceleration blocks
Digital TV-out (CCIR6601)
Extensive mixed-signal integration and advanced audio
On-chip mixed-signal transceivers for 480-Mbps USB2.0 OTG
On-chip 400-mW stereo amplifiers for speaker phone or ringer
On-chip stereo audio DACs and 100-mW amplifiers for MP3/audio
On-chip digital audio mixing and 5-band equalizer
Integrated 64-tone polyphonic ringer
Integrated MP3, AAC, AAC+, eAAC, WMA, and W-AMR codecs
Downloadable codec capability with on-chip SRAM
Signal and voice quality
Broadcom M-Stream technology delivers up to 3 dB better signal quality
SAIC support for voice, data, echo cancelling, and noise suppression
>95-dB SNR for high-quality stereo audio

主要优势：
Enables the highest performance yet lowest cost HSDPA/EDGE handset design
Extended coverage and fewer dropped calls using M-Stream, SAIC, and unique WCDMA equalizer
Lowest power consumption due to advanced 65-nm process and onchip hardware acceleration architecture
Fastest video, audio, and data download using 480-Mbps USB 2.0 OTG
Highest quality audio and video capture and playback with H.264 QVGA hardware support
Enables smallest and thinnest design via integrated multimedia, audio, and mixed signal
Extreme flexibility to support optional GPS, Bluetooth®/FM, Wi-Fi®, mobile TV, or external multimedia processor
High-performance 312-MHz ARM11 processor for super fast applications computing speed
Quad-band support for worldwide GSM coverage and roaming ability
Enhanced interfaces
Flexible memory: NOR/NAND/pSRAM/SDRAM at 104 MHz
USB 2.0 OTG high-speed (480 Mbps)
Two high-speed UARTs at 3.6 Mbps
One 8-bit SDIOs at 416 Mbps, one 4-bit at 208 Mbps
BSC, I2S, SPI, and PCM interfaces
Hard disk (CE-ATA)/SD/MMC and T-Flash, memory stick PRO?
USIM controller
ETM and JTAG for software debug
Bluetooth/FM, Wi-Fi, and GPS support
TV out

应用：
Mobile handsets and smartphones



图1. BCM2153方框图



图2. BCM2153系统方框图。