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本帖最後由 masonchung 於 2010-1-26 09:43 AM 編輯 + J4 Q) e$ h4 d, l4 ?- {9 d
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Broadcom發表超低功率的1080p多媒體處理器* P; A; Q) \1 ?6 _$ t; {
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。 8 h: Y x+ b1 N" `' T9 h# Y/ ^
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。
* C" X' G* x' {' v+ J D% i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。
# k( k; _7 A( K4 T6 w) N6 l8 N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。 & l# B3 g8 j* s$ W& g" z# A
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。 9 y# T* c/ Z( H; Q& t' p0 M e2 X
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。
4 A+ O+ L* {4 k) N4 c# ~BCM2763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。
+ u- ]5 o* m. F! M* M' LBCM2763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。) Q, r) N) c7 z8 f$ M- Z
' a' m. U2 U' U3 C5 O. hHighlights/Key Facts:
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-- The breadth and quality of Internet multimedia content is rapidly
: p, n( `0 T- ]; v improving, with sites such as YouTube now supporting full HD 1080p video
) D. z0 Y! Z# ]- N% y( t$ P! H sharing. Consumers are also increasingly using cell phones as their
8 f. C; U. K7 o, V primary digital camera and camcorder, which is driving demand for higher
: }3 [/ v* \& q I+ j( v% Y resolution and more sophisticated image processing which is currently
# J( Z1 @- ~1 F) Z: |8 G* S7 r only available on advanced standalone camcorders and cameras.
. I5 \, T8 |9 d) b8 N. Z Additionally, newer graphics-oriented user interfaces and mobile games4 n& Q5 ^6 p$ R/ w0 B
now require enhanced graphics capabilities.: G0 g5 |. J% F3 i& K- J- {4 n
-- The new Broadcom BCM2763 VideoCore IV multimedia processor enables
" }3 l5 }7 I. W0 P& O best-in-class performance in the following areas:
5 W$ l# b' F5 ?$ h -- Full HD 1080p camcorder capabilities in a cell phone with! I6 _( L$ J! t2 H* X* T
significantly improved quality over current generation handsets
& h C9 p: _2 @3 e (which generally have VGA or lower resolution camcorders).+ K# y# D: m0 @* I& D& l5 @
-- Up to 20 megapixel digital camera with advanced features such as
, t6 p: F# N6 j/ o1 s$ t multiple shots per second, image stabilization, face and smile( O0 K) y: v% M$ r) I; j- [
detection and panorama mode.; \) {4 M& e% g/ k8 P4 K
-- The ability to render mobile games natively at up to 1080p
" X5 ]' m$ z6 {$ v2 z: a resolution, which in combination with an on-board HDMI output,; P9 }0 }% x+ U
allows a console-quality gaming experience on large screen HDTVs.
& p6 G( N2 W% k) ]' F0 I# U# x+ V -- In addition to providing these capabilities on new handsets, the BCM27630 J3 y: p7 {+ A. B6 c
has improved power savings using a 40nm process without draining the
7 p* o" W8 L. C/ V6 s battery or significantly reducing talk time. Additional ultra-low power
3 \; a3 A- ^& ?, e consumption features include:) w! @4 l6 q' ]: j$ P2 I. s
-- 20% to 50% power reduction in comparison to the prior generation
7 m, E' M# @ O1 a& o4 l' `" }0 d/ t Videocore III multimedia processor.
$ ~, ` d. A5 [( J+ }% B/ @/ [ -- 4 to 6 hours of 1080p video recording and 8 to 10 hours of mobile0 e. B7 D: q8 ~8 [& C
playback, with up to 16 hours of full HD playback over HDMI given3 f% [& }. B$ l1 R7 v! I
sufficient handset storage.5 X$ M* ]4 W" a+ Q8 V" _
-- Only 490 mW of chip power is required for 1080p camcorder H.264 High
3 C6 m$ S# H: G, t1 U, f Profile encoding and only 160 mW for 1080p playback.5 N4 g1 |. B/ a) a
-- Only 160 mW of power is required for mobile game graphics
7 p( s5 q+ R8 i( r7 W: _ processing, supporting up to 1 gigapixel per second fill rates and
2 C2 l1 |3 P3 F# B4 u _! K8 c) ^ improves graphics performance by a factor of 4x to 6x in comparison
$ I' X! D# z# {+ L to the prior generation Videocore III multimedia processor.
; P- T6 k) s3 p* C. d, E -- The BCM2763 processor integrates the key functionality and components
$ ] l% v3 }- c# Y needed to drive advanced multimedia capabilities in new handsets. As a
( A( j. p: [8 C result of this high integration, the BCM2763 enables a lower overall BOM, q' E: d7 ~8 T1 t1 x
cost, enabling manufacturers to pass these lower costs on and introduce
/ ?; c2 d R9 p! H! J/ t3 C1 x advanced features to lower tier phones than previously possible.8 r) A6 q; @ K3 x2 r/ O. s( Y
-- The BCM2763 integrates the functions of eight chips including GPU( f" X1 u4 c7 e
and graphics memory, image signal processing (ISP) and ISP memory,
& g# k6 r/ j2 L0 P; M5 k. C video processing and video memory, HDMI and USB 2.0. 128MB of LPDDR2' Y6 B( a+ u) ^3 ~% h
graphics memory is stacked in a single package.
" p4 J8 v$ L" ]3 E -- The 40nm process enables reduced power, improved performance and' s5 E+ X: H& R' b
reduced handset board space.
3 s2 K* S+ D1 b4 W' W -- Benefiting from an existing VideoCore software code base and legacy
8 {4 q5 `1 O( |4 C architecture, manufacturers of phones and other consumer electronics
, w' a' E3 B2 D: a8 @) X devices can easily add these new VideoCore IV multimedia features to
3 r3 i, F1 s, \% `; b [0 b their products, allowing faster time-to-market.% W+ w8 d" t' j0 |
-- The BCM2763 is currently sampling to early access customers (pricing, @2 j. b' p5 m; o9 o. j1 E$ u) h& [
available upon request). Handsets utilizing this new 40nm VideoCore IV! F+ V0 }# ]7 q
multimedia processor technology are expected to reach the market in
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