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本帖最後由 masonchung 於 2010-1-26 09:43 AM 編輯 0 A+ j2 O, F- l& j% ]; z! q- b8 j
2 t4 j" O; f, k3 b3 F' RBroadcom發表超低功率的1080p多媒體處理器& s( j, ?9 A/ E9 L
電子工程專輯 2009/12/24 / a: w) [' a2 X1 d( x0 ?# }5 R
8 _; a ?& a% ]- @6 v% v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。 9 b k1 \! l4 W4 W! T4 |( e
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。
r; w0 p9 R [4 v, B3 y& {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。 & Z( \8 x) b3 S0 X
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。 1 }6 K. z @; c4 q* M, j
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。 3 d" D% `' _4 Q; [3 y2 V. f
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。 & L: v$ q+ a$ r1 `. e+ P
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。
+ p3 c" k1 J6 O, VBCM2763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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-- The breadth and quality of Internet multimedia content is rapidly
- p5 l1 s$ |7 |6 C improving, with sites such as YouTube now supporting full HD 1080p video
4 x( x( }8 E# ?- V sharing. Consumers are also increasingly using cell phones as their
; M5 w8 \* l1 v8 z primary digital camera and camcorder, which is driving demand for higher
9 I, l. M& ~( }( t: R resolution and more sophisticated image processing which is currently
- S4 P4 N" J7 S$ u7 P# E' j only available on advanced standalone camcorders and cameras.
4 J% }- [0 w4 ?* E6 N. g4 O# s Additionally, newer graphics-oriented user interfaces and mobile games% U& b0 _" d3 p U; Z% K
now require enhanced graphics capabilities.( L3 m+ ^' A$ v" i# m; V7 ~
-- The new Broadcom BCM2763 VideoCore IV multimedia processor enables
2 F% R7 M) k- g5 Y+ J9 H( L best-in-class performance in the following areas:
) C* @# e$ i9 p! T0 x -- Full HD 1080p camcorder capabilities in a cell phone with
3 ~2 \5 S7 E- n5 [. @! Q" y significantly improved quality over current generation handsets
- M, O2 z- @+ Y7 Z `! D (which generally have VGA or lower resolution camcorders).4 |6 i* i) B" J# z
-- Up to 20 megapixel digital camera with advanced features such as
% u: r' F3 b7 l: w/ u* I! i4 M6 P) Z multiple shots per second, image stabilization, face and smile- V3 d0 j: c5 o/ u' ^
detection and panorama mode.8 O0 `, x& o a$ e! E8 `5 ], r8 h
-- The ability to render mobile games natively at up to 1080p! | J& q7 X3 o2 T
resolution, which in combination with an on-board HDMI output,; e' Z+ J# p+ p8 M9 E7 h
allows a console-quality gaming experience on large screen HDTVs.
* i4 `7 n. z3 n B -- In addition to providing these capabilities on new handsets, the BCM2763
0 y: k# Y0 P3 Y1 ^7 Y has improved power savings using a 40nm process without draining the
* ?, ~! i# R, b7 Q, I6 V$ [5 g battery or significantly reducing talk time. Additional ultra-low power6 d- b3 Y: j( s
consumption features include:
7 K- n2 A! W9 t7 f -- 20% to 50% power reduction in comparison to the prior generation
( V- `# B0 ~1 v" Z- j Videocore III multimedia processor.) z. k' a4 I* E* w) Q; Z' A$ N
-- 4 to 6 hours of 1080p video recording and 8 to 10 hours of mobile# c9 t, u2 z% R) F7 ~+ l
playback, with up to 16 hours of full HD playback over HDMI given
. I8 W4 t y# @+ R+ }: U7 o sufficient handset storage.
, S4 o3 q( [. ^" A& b -- Only 490 mW of chip power is required for 1080p camcorder H.264 High
' n6 M3 I Q, V- {) D1 _ Profile encoding and only 160 mW for 1080p playback.
" x5 {- X, x& L8 k4 o3 s -- Only 160 mW of power is required for mobile game graphics: T6 J# m! J7 G7 z( }4 a
processing, supporting up to 1 gigapixel per second fill rates and4 G5 _$ V( @8 f9 n
improves graphics performance by a factor of 4x to 6x in comparison
5 c! w0 |0 W9 }) O& D# m& Z to the prior generation Videocore III multimedia processor.
- u2 J9 j" | d6 S -- The BCM2763 processor integrates the key functionality and components
& J8 V% v4 o6 ]9 m0 U needed to drive advanced multimedia capabilities in new handsets. As a1 b0 `) V* a4 F8 `7 a; h
result of this high integration, the BCM2763 enables a lower overall BOM! s5 A0 g g0 e2 }% J& o, l. I
cost, enabling manufacturers to pass these lower costs on and introduce
! P% k5 r; u C% t advanced features to lower tier phones than previously possible.
5 S \9 v3 N- X -- The BCM2763 integrates the functions of eight chips including GPU
- N& i4 O1 u; {9 S3 H. { and graphics memory, image signal processing (ISP) and ISP memory,
, {; h* P a3 k' V; l2 P8 x+ n video processing and video memory, HDMI and USB 2.0. 128MB of LPDDR2: {* m5 j3 F- Z
graphics memory is stacked in a single package.
; a- D7 k: q# I+ z1 b2 g -- The 40nm process enables reduced power, improved performance and
& ]7 Q( H2 Z& Q$ e) y% K# q reduced handset board space.
6 ?- i D/ x+ V f. N! a* f. y -- Benefiting from an existing VideoCore software code base and legacy# C9 q, ]* W' [ c/ }
architecture, manufacturers of phones and other consumer electronics |# m0 Y- h: J- c9 G
devices can easily add these new VideoCore IV multimedia features to
% w8 \2 |# Z3 b% L# ^" b: V their products, allowing faster time-to-market./ x) B/ T! U8 y* H
-- The BCM2763 is currently sampling to early access customers (pricing
6 P% a$ o$ N4 \) { available upon request). Handsets utilizing this new 40nm VideoCore IV+ O; M0 u& G J7 r
multimedia processor technology are expected to reach the market in2 g& }5 r5 A& R* A- [
2011. |
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