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本帖最後由 masonchung 於 2010-1-26 09:43 AM 編輯
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1 y# Q: w0 I6 ~1 C0 R* X4 N6 FBroadcom發表超低功率的1080p多媒體處理器
' Q6 a: N: t& u7 |- p0 O電子工程專輯 2009/12/24
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博通(Broadcom)公司發表其新世代多媒體處理器BCM2763 VideoCore IV,具備更高效能與更低功耗,採用40奈米(40nm) CMOS製程技術,能夠比65奈米產品的整合性更高,且佔用的空間更小、功耗更低。 6 Q2 |5 r! ^' n& y: X% I; J
藉由40奈米COMS製程技術提供的更高整合度及大幅節能等特性,BCM2763多媒體處理器能支援最先進的行動高畫質(HD)攝影機及影像播放裝置、高達2千萬畫素的數位相機和照片處理功能,以及高解析度的1gigapixel 2D/3D繪圖能力,為消費者提供世界級的遊戲體驗。
# H: z$ L7 F" n; N2 B8 e5 D% m利用該晶片內建的標準HDMI介面,還可以在全尺寸的高畫質電視播放最高品質的高畫質影像、3D遊戲和高解析度達2千萬畫素的影像。此外,由於BCM2763的高整合性架構能降低物料成本,使得更多低價手機得以嵌入尖端先進的多媒體功能。
5 M* \/ f3 m. M" Y3 X' ^. b最新的Broadcom BCM2763 VideoCore IV多媒體處理器可讓手機具備Full HD 1080p的攝影機功能,大幅超越目前一般手機的影像品質(通常只具備VGA或更低解析度的攝影功能)。其高達2千萬畫素的數位相機具備多種先進功能,如每秒連拍數張照片、相機防手震、臉部表情及笑容偵測以及全景拍攝模式。 7 g ~ x) S/ ?: R/ n/ P
此外,還有高達1080p解析度的行動遊戲影像畫質,並內建HDMI輸出功能,可在大型螢幕的高畫質電視提供遊戲機品質的遊戲體驗。除了讓新手機具備這些功能外,藉由40奈米製程技術大幅提升的節能效率,使BCM2763既不會大量消耗電池電力,也不至於大幅縮短手機通話時間。 5 }* y- ~5 w' P P# i3 u
在低功耗性能方面,新款多媒體處理器據稱較前一代Videocore III多媒體處理器功耗減少20%∼50%。只要手機的儲存容量夠,即可錄影4到6小時的1080p畫質影片、播放8到10小時的行動影片,並透過HDMI介面播放16小時的Full HD影片。1080p攝影機H.264 High Profile編碼的晶片功率只需490mW,播放1080p畫面的晶片功率只需160mW。行動遊戲的繪圖處理只需160mW功率,每秒填充率高達1gigapixel,且繪圖效能是Videocore III多媒體處理器的4到6倍。
! X: ^; T. R! R1 y+ z) _* m* LBCM2763將8種晶片的功能整合在一起,以單一封裝堆疊GPU及圖形記憶體、影像訊號處理(ISP)及ISP記憶體、視訊處理及視訊記憶體、HDMI及USB 2.0. 128MB的LPDDR2圖形記憶體。40奈米製程可降低功率、提升效能並減少手機機板的空間。 ( I. a' b/ p+ j' t
BCM2763目前已提供樣品給早期取得計劃的客戶。採用此一全新40nm VideoCore IV多媒體處理器技術的手機,預期在2011年上市。
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Highlights/Key Facts:
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- \7 V* r) c& m) ~+ u! Y4 r% d2 S -- The breadth and quality of Internet multimedia content is rapidly
' P$ `, \* N' n3 c improving, with sites such as YouTube now supporting full HD 1080p video0 O' r6 p7 E/ l& c }
sharing. Consumers are also increasingly using cell phones as their
; V0 t6 \) ^5 h" s" H0 {, Q% N primary digital camera and camcorder, which is driving demand for higher
4 i. y( R3 [2 s+ t resolution and more sophisticated image processing which is currently6 w) y: [' A! o- D+ l
only available on advanced standalone camcorders and cameras.. B+ G _! T+ l* `3 ?2 X) O
Additionally, newer graphics-oriented user interfaces and mobile games
2 y. c) A: M0 Y U* s1 | now require enhanced graphics capabilities.8 l6 ~+ y9 Y, C# ^( }
-- The new Broadcom BCM2763 VideoCore IV multimedia processor enables
4 a# n: Q/ b+ z$ i9 u( F# p: m best-in-class performance in the following areas:
1 U+ J$ |2 Z* a. K% H6 d -- Full HD 1080p camcorder capabilities in a cell phone with
' t* X7 p2 @! F3 l significantly improved quality over current generation handsets2 A4 v( \) B7 u- p/ g
(which generally have VGA or lower resolution camcorders).0 X7 q; k. w; q$ u
-- Up to 20 megapixel digital camera with advanced features such as0 P" |. a% Q7 w2 o' w! m! R
multiple shots per second, image stabilization, face and smile1 _: i1 H$ y7 {
detection and panorama mode.
" P) |7 P& ^, g! u -- The ability to render mobile games natively at up to 1080p9 S& n/ m m, U7 L) v; M5 O
resolution, which in combination with an on-board HDMI output,! ~$ V& S! x; t# d1 \1 d2 O2 h
allows a console-quality gaming experience on large screen HDTVs.9 B d& Q1 G. s* E/ f. R
-- In addition to providing these capabilities on new handsets, the BCM2763
0 z5 K( a" m- k9 Y has improved power savings using a 40nm process without draining the
: @, ?- L5 S& d' t- \ battery or significantly reducing talk time. Additional ultra-low power4 s/ `* k' c A
consumption features include:, R% x( C% H+ ~( g
-- 20% to 50% power reduction in comparison to the prior generation
# }9 |( }0 u6 V7 J& E' Y# h' X Videocore III multimedia processor.
; C- O0 E( A( F$ D3 y) t -- 4 to 6 hours of 1080p video recording and 8 to 10 hours of mobile
* W. w; P0 Y1 N- W! B+ e' P playback, with up to 16 hours of full HD playback over HDMI given
F$ v) P, _; x+ J sufficient handset storage.
S9 h1 T( i8 I1 ^1 U% E& w$ { -- Only 490 mW of chip power is required for 1080p camcorder H.264 High1 Q3 s; c* ]4 z0 m) H
Profile encoding and only 160 mW for 1080p playback.
/ o5 `. ~! t3 \# M# j -- Only 160 mW of power is required for mobile game graphics
% p( ^0 u( i: v8 N4 G9 ^" x1 r processing, supporting up to 1 gigapixel per second fill rates and
) d$ X0 \) p1 Y6 y2 u$ P. Y improves graphics performance by a factor of 4x to 6x in comparison
3 U/ |& G1 q# g% } to the prior generation Videocore III multimedia processor.
" W" |1 v" N% g& y -- The BCM2763 processor integrates the key functionality and components
/ A: b; J/ J: x: \8 z needed to drive advanced multimedia capabilities in new handsets. As a
8 k8 [4 ^) d9 k6 z! F# @4 F5 ` result of this high integration, the BCM2763 enables a lower overall BOM% T: `1 |1 T6 V1 t' H, D
cost, enabling manufacturers to pass these lower costs on and introduce
Z6 R! }! u3 [) g advanced features to lower tier phones than previously possible.! E) J, C( v" }1 f8 n4 x; Y6 n
-- The BCM2763 integrates the functions of eight chips including GPU3 {% i8 A( d$ {( I* X; w
and graphics memory, image signal processing (ISP) and ISP memory,
4 E# M0 f7 D1 D- [( v) E) k) q0 z video processing and video memory, HDMI and USB 2.0. 128MB of LPDDR20 V* M& [2 f& l% E
graphics memory is stacked in a single package.9 ?8 v0 Y0 L9 S- i: X U; I
-- The 40nm process enables reduced power, improved performance and
) Q* O: S# G' a" x3 @8 }6 r3 b reduced handset board space.
V# G8 ^( ?- W$ t. v) r/ N -- Benefiting from an existing VideoCore software code base and legacy
' n( V$ G( t" Y architecture, manufacturers of phones and other consumer electronics
+ L* X0 b* F$ K3 Y devices can easily add these new VideoCore IV multimedia features to
6 L+ O9 U: g g( d5 k their products, allowing faster time-to-market.
3 H& ?8 E* o! n# N! W$ M -- The BCM2763 is currently sampling to early access customers (pricing1 F& m( s Y5 L0 Q# @% L
available upon request). Handsets utilizing this new 40nm VideoCore IV6 q& m3 E$ E; w" H6 L( B
multimedia processor technology are expected to reach the market in6 g, v5 D; r+ {/ I; A9 Z4 c6 B" d ^ g
2011. |
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