BCM21551片上3G手機系統組合了高速HSUPA 3G基帶,多頻道的射頻(RF)收發器,帶增強數據速率(EDR)的藍牙Bluetooth® 2.1,FM收音機接收器以及用于汽車立體聲音樂播放器的FM收音機發送器.器件還具有先進的多媒體處理功能,支持高達500萬象素的照相機,帶TV輸出的30幀/秒的視頻,以及支持HSUPA, HSDPA, WCDMA 和EDGE蜂窩協議;它能和Broadcom其它器件如Wi-Fi和 GPS, PMU,或其它新的VideoCore® III移動多媒體處理器配合使用.本文介紹了BCM21551的主要性能,方框圖以及典型的應用系統方框圖.
Worlds First 3G Phone on a Chip Solution
Over a Year Ahead of Competitors, Broadcom Introduces Single-Chip HSUPA Processor BCM21551 Features Full CMOS RF, Rich Multimedia, Bluetooth, FM Radio, FM Transmitter and More, Packed on a Single 65nm Die to Slash Price, Size and Power
BCM21551 3G Phone on a Chip, which combines a high-speed HSUPA 3G baseband, a multi-band radio frequency (RF) transceiver, Bluetooth® 2.1 with enhanced data rate (EDR) technology, an FM radio receiver and an FM radio transmitter (for car stereo music playback). The device also features advanced multimedia processing, up to five Megapixel camera support, and 30 frame per second video with TV Out, as well as support for the HSUPA, HSDPA, WCDMA and EDGE cellular protocols. It can even be paired with other Broadcom devices, such as Wi-Fi® and GPS, PMU, or the new VideoCore® III mobile multimedia processor. No competing cellular baseband chip has ever achieved this level of integration, which drives down cost, power and size, while enabling an advanced level of functionality. This makes the BCM21551 an ideal choice for both mass market high volume 3G feature phones as well as smartphones running an open OS such as Symbian®, Windows Mobile®, or Linux.
BCM21551 is an innovative HSPA system-on-a-chip (SoC) that features unprecedented integration of advanced smartphone features. The BCM21551 integrates dual ARM11 processors to provide open OS support, and features full stereo music capabilities for both headset and stereo speakers as well as an integrated 5-band graphic equalizer and digital mixing capabilities for superior audio performance. The BCM21551 also integrates advanced MIPI serial interfaces for the LCD and image sensor (which facilitates a low power interface for the BCM21551 and the LCD in the phone) and the analog physical layer required for the 480Mbps high speed USB2.0 applications that enable the rapid transfer of multimedia files to and from the handset.
The BCM21551 is an advanced single-chip 65-nm HSUPA/WCDMA/ EDGE SoC, with fully integrated 3G RF transceiver, BT, FM and mixed signal analog. Designed on 65-nm technology, the BCM21551 offers the lowest power consumption, highest integration, and lowest cost HSUPA solution. The modem supports HSUPA 5.8 Mbps, 7.2 Mbps HSDPA, WCDMA 384K with Class 33 EDGE modem and integrates all analog and digital functions on a single, monolithic piece of silicon for lowest cost. The integrated BCM21551 RF transceiver design delivers the highest RF performance while achieving the lowest power consumption through innovative architecture and circuit design. The RF transceiver draws upon Broadcoms extensive experience in pure digital CMOS radio design and directly leverages Broadcoms BCM2085 and BCM2090 CMOS radio products. Critical radio performance, while using pure digital CMOS for radios, is assured through the use of proprietary, autonomous, real-time calibrations within the radio. The BCM21551 cellular processor has fully integrated audio support for driving ear piece, ringer, stereo headsets and stereo line drivers for support of external Class D amplifiers for loudspeaker. External audio/video coprocessors are not required for the handset design. 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 call quality. The BCM21551 utilizes an advanced release 6 compliant direct Matrix inversion (DMI) equalizer for highest HSDPA data throughput in the most challenging radio conditions, thus offering high performance without the need for costly receiver diversity. SECURITY Enhanced security is provided with OTP and dedicated hardware blocks to provide secure Boot, memory and DRM functions. The embedded one-time programmable (OTP) bits allow the software to boot securely and check IMEI security prior to network activation. OTP bits can also be used by high-level applications to verify the integrity of Digital Rights Management (DRM) functions.
主要特性:
通用特性:
Single-chip, single-die, HSUPA, WCDMA, EDGE SoC with integrated RF, BT, FM, multimedia acceleration, high-speed USB, full mixed signal audio and high-performance application CPU
Advanced release 6 compliant 7.2 Mbps HSDPA and 5.8 Mbps HSUPA modem
Utilizes the lowest cost, lowest power 65-nm digital CMOS process
Compact 14 mm x 14 mm 621-pin FBGA package with PoP for smallest size and low-cost PCB design
多媒體功能:
5.0-Mpixel camera sensors with MIPI serial interface•30 fps full rate, H.264, MPEG4, H.263 and WMV9 at high quality VGA resolution
H.264 encode and decode for best quality and memory usage
Dual LCD support, up to 24M colors, with MIPI serial interface
64-tone polyphonic ringer
Digital audio mixing and 5-band equalizer
Support for advanced audio codecs: MP3, AAC, AAC+, eAAC, WMA, AMR-NB, and AMR-WB
Extensive Mixed-Signal Integration and Advanced Audio
Integrated USBOTG HS (480 Mbps) and FS transceivers
Integrated amplifiers for stereo headset and earpiece with stereo line drivers for external Class D loudspeaker amplifiers.
Integrated stereo DACs with >95-dB SNR
Integrated analog TV-out support (S-Video)
Integrated RF transceiver
Integrated BT 2.1 and FM RX and TX
Advanced Technology
Self-calibrating 2G and 3G transceiver automatically adjusts to changing conditions and compensates for manufacturing deviations
Broadcom® M-Stream technology delivers up to 3 dB better signal quality
SAIC support for voice and data
應用:
3G HSPA feature phones
3G OpenOS Smartphones
圖1.BCM21551方框圖.
圖2.典型應用系統方框圖.