标题: CA20k1 和 CA20k2 对比阅读 [打印本页] 作者: pyncell 时间: 2008-9-19 09:29 标题: CA20k1 和 CA20k2 对比阅读 {lol:]2 D+ N4 ]- _: }+ Y
CA20k1:: w# Z( X7 L" t* H9 d+ m% C G% b& I$ k
Overview: @& p! z, a- |' Z# E* {
The CA20K1 digital audio processor is a slave processor designed to 1 z1 O+ \+ q( qaccelerator digital audio processing and is available in 0.13mm BGA package 5 H- L6 D* ^1 j8 V# u3 ksize 23mm by 23mm. The CA20K1 contain several special purposes / V8 m! r7 a' ] l) sprocessing units including: a sample rate converter engine, a digital filter 8 q# N: s# B' Nengine, a digital delay line accelerator know as the “tank engine”, a digital x/ \# H; Y- b% I- L* l5 C
filter engine, a powerful mixer, a micro-programmable audio DSP, various ) ]* G& c0 s0 ]5 R$ Kdigital I/O capabilities and bus mastering external memory interfaces. Unlike 6 G# I1 D! q# g& pthe host interface control port the bus mastering “audio transport” supports ) |- U7 O- e; o, uburst mode accesses to the PCI and SDRAM interfaces. Host processor is * y, p2 {' ?% U2 \2 _ h0 brequired to control the CA20K1 through a 32-bit PCI bus or a generic * l' _7 r# @9 Cmicroprocessor interface using a series of reads and writes to control - L" {% G* t- O4 Q2 [2 Gregisters. 3 ^/ n _% M7 I# m7 |3 T' NThe X-Fi audio enhancement algorithm is integrated into the CA20K1 audio9 A% p; K" p& m6 W8 Z
processor to extend the X-Fi enjoyment to the customers. As the next9 C+ i: w: r4 e. h6 \
generation high-resolution audio processor, CA20K1 provides dramatic 9 Q$ P$ }) t7 x9 C; r5 b! R Nimprovements to enhance listening experiences for movies and improves ( S9 w( w$ K9 |2 G3 N: tthe capabilities, performance and quality of audio. The enhanced sound/ z, d: }' H: h H. j1 G
quality makes movies more realistic. Users can truly immerse themselves in. |. @1 h% Q' k
scenes like underwater, volcano eruption, war zone etc. while enjoying the: L. R9 T1 }! Y! v
enhanced sound effect at home. The X-Fi module gives you an experience $ J! P4 \+ h# ~" Q$ Y. z) ubeyond studio quality. Users can enjoy the live concert experience in their8 W( E/ r4 t. {7 b3 E U
own comfortable surroundings. 9 o. G8 z: V7 `) M {. jKey Features, e0 d6 y4 |; ?2 x9 ]3 b9 Y$ g8 A
· 400/200 MHz internal clock rate ' v$ ?* j7 i; Z _2 ~/ |0 \/ h· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs' L- W) @4 ]$ E
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs 1 r v5 }& d5 \5 j· Sample rate slave capability to I2S and S/PDIF# e: E* W, p. v& X! ~
· 16 independently configurable GPIOs pins ; g3 d$ R: C7 d; g5 q6 ~% S· I2C controller O/ p ^6 b, c, m1 m) u J# f
· EEPROM interface for overriding reset defaults and storing software values* f4 I" G+ J- F
· 5-volt tolerant 3.3V I/O + C4 ?. c7 \! @% i/ @ o R· Power management with an energy efficient 1.2V core 1 d9 B' i$ q/ C& \# v& i* O· 2 UARTs with programmable baud rates# ^4 q' C" ~7 y3 `4 u' R! h3 b/ |
· 4-Thread, Interleaved Quartet DSP with 1,200 MFLOPS max throughput , x2 `: l% u7 p( U· Fully flexible routing – connect anything to anything – using “audio ring” bus.+ F+ R, X1 J4 r- t2 [* I2 [
· Tank accelerator that supports fractional and modulated digital delay lines; B9 p' f' u X
· Very high quality Sample Rate Converter (SRC)) o# z" U. t4 U
· Dual-mode microprocessor/PCI interface with shared pins 6 X! Z1 G6 U( o% K. N: ~- e· 100 MHz SDRAM Interface for high bandwidth audio requirements : ]+ n1 r. {+ h0 h· Paged Virtual Memory support 1 @5 K5 n" i( W5 S. f* d· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support F) U9 x+ C4 G* x' L· Wall clock and interval timer tied to the sample rate0 y! r( I! `* n% Q9 @
· Programmable PLL that supports multiple sample rates with a single crystal 6 Q2 g1 c1 m' S· Host interrupt subsystem. |3 V4 b6 {/ y |# N
Audio Enhancement R& W2 B* E) x0 H$ ~3 Q8 _) w
· X-Fi audio enhancement algorithm4 X" A% d4 `( ?, M
X-Fi CMSS-3D Surround ! U7 j6 y$ Y/ s' `- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering., K- W5 P3 `; Z5 y, V: m
- Stereo Surround for duplicating of stereo over multi-channel.6 A3 p4 N, q( Y
X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D 0 T; y( r6 X7 w% G7 @* Upositioning. ( q/ V; l* X0 r. h6 t5 w X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode." T/ G; }+ \' {. T$ D
X-Fi CrystalizerTM 6 x( k$ F b- m5 X: ?- Enhances musical dynamics by emphasizing sharp percussive sounds and transients. 1 Q' M+ I y3 }% p1 H- Creating a “puncher” and more dynamic listening experience.- C( H0 f/ p& o' [5 J, w
· THX Setup Console and THX Certification) y* q" @9 ?, h0 B8 `( z* d
· Highest Quality Audio / |% Z( w0 T% u3 S! `) O# Q 24-bit/96kHz recording - n4 L2 { P6 t4 S5 k# ]4 h3 O 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback8 j4 J! V$ M9 a6 G1 G5 Z7 F4 F
· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset& `! _3 ^2 k1 L. N* G1 n! y- u& L
· SVM – Smart Volume Management; g' ?5 I" Q2 d- c
· EAX? ADVANCED HD? 5.0" K; { x2 M) @( x4 |
128 Voices+ D6 Z/ f! q7 C {$ ^$ q
EAX? Voice 0 K# x [1 @4 G# ?& m EAX? PurePath? * I2 V" U( L% N3 j! K3 j( H9 ^( \+ I Environment FlexiFX # H9 F B( {% |; L( N EAX? MacroFX? 1 y' H3 P0 T$ k: Y* P7 H5 N Environment Occlusion? 7 S5 h& d c/ Y" d/ x1 u· OpenAL Support0 U& v" c& ]3 v8 {/ l9 Z
· Creative ALchemy) M. ^+ Y! B) F
Provides multi-channel audio for legacy game titles running on Windows Vista?作者: pyncell 时间: 2008-9-19 09:31
换汤% {- R: a4 Y3 A/ B
CA20k2 : T9 g; K3 C- U) ]& GOverview C+ h& m# E7 L8 gThe CA20K2 digital audio processor is based on the CA20K1 architecture. The ; ^+ T* T, p' A6 a) X" |' T! kCA20K2 uses an advanced PCI Express (PCIe) one-lane interface and adds an 4 C$ y$ @) u- A$ _5 U1 eembedded RISC processor to safegaurd against long control latencies; w5 G2 @9 b# O# P
introduced by the PCIe interface. The CA20K2 also expands the audio I/O9 l; Y8 B3 o( ^9 L6 w2 J: V
capabilities and adds DDRAM for increased local memory bandwidth. In 0 k% G z0 }4 h: n3 h7 Qaddition, the CA20K2 incorporates a Universal Audio Architecture (UAA)3 _. s; V2 o( b4 L
component and is available in 0.13mm BGA package size 19mm by 19mm. * X# K% }. E+ c/ iThe X-Fi audio enhancement algorithm is integrated into the CA20K2 audio, D- {+ _2 q S6 u& O
processor to extend the X-Fi enjoyment to the customers. As the next3 v2 i% \3 L2 ?. q: w0 d' O/ Y
generation high-resolution audio processor, CA20K2 provides dramatic* ~% g k$ k- C& V0 N
improvements to enhance listening experiences for movies and improves; x' v1 _/ B1 N8 y2 ^# r$ X
the capabilities, performance and quality of audio. The enhanced sound 6 v0 b0 R X8 V/ b/ s$ |quality makes movies more realistic. Users can truly immerse themselves in , ` `0 D8 D+ G9 p1 Tscenes like underwater, volcano eruption, war zone etc. while enjoying the * N( L% n) |9 l c* eenhanced sound effect at home. The X-Fi module gives you an experience6 o$ j- i+ z+ \9 c1 {1 A$ n+ T
beyond studio quality. Users can enjoy the live concert experience in their, e+ J+ t# ?# ]8 J6 K, r1 E- U
own comfortable surroundings. - z( R# t! G. k9 A) YKey Features% d4 P; W: A* y) h5 {+ p; t+ T
· PCI Express 1.1 interface, up to 8 simultaneous transactions supported+ \& D+ D* m! h4 j ?! l; Z
· Sample Rate Converter engine% M9 {* W# _' C$ P" x1 I; W5 G
· Digital Filter engine ) R7 H) |( ?1 Y C· Tank, digital delay line accelerator6 e+ l! M& K" R9 Q
· Audio Mixer, T2 m; ?2 I+ [1 F7 v# j
· Microprogramable “Quartet” audio DSP ) ^# M$ J- T" R0 l/ @' Y· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs 0 D/ |) r4 S) x· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs; Z% |# S1 X: n/ Y- Y# }
· Sample rate slave capability to I2S and S/PDIF . }) W0 g0 D6 u( A& l) Q' _· DDR SDRAM interface . I2 y! ?1 i- }8 |· Parameter Generator / Mixer 2 Y+ \: H# e0 }· Universal Audio Architecture component' L: e2 E$ b9 d
· Integrated HD-Audio core with core switch + R8 n" u5 l2 f$ {) A4 b- b$ x· Up to 32 GPIOs' ~/ c1 t d m/ U
· 16-bit general purpose parallel control bus% e0 r4 ~0 J! S1 |9 d3 f, S
· I2C master interface5 Y1 y0 l6 s+ E% G
Audio Enhancement5 C1 h! k" `5 M: u: N! N; M& S5 [
· X-Fi audio enhancement algorithm* x' n+ p; s# P" K* h: W
X-Fi CMSS-3D Surround - m: O- s" ^, g g$ w! l8 X+ P Y% O- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering. . F: R; _& U" z& C$ C- Stereo Surround for duplicating of stereo over multi-channel. - Q7 `$ t9 G$ }/ V5 E4 z, p X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D " X$ ?, \; g) ?! c0 M5 spositioning. 3 H* T! ?0 t! j( i X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode. + E5 ]; ~( B2 ^# s3 k/ G X-Fi CrystalizerTM2 k/ M* ~' W4 C0 l H# t4 u+ C" o5 M8 ]- Q: r
- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.9 e% \0 d. Q$ d
- Creating a “puncher” and more dynamic listening experience.* s, y, o- P1 f [. L; Y: ]& t3 k
· THX Setup Console and THX Certification, b* x) o7 A e
· Highest Quality Audio: `) m3 A# M- Y
24-bit/96kHz recording % v" q: F; f; K 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback9 {9 t p+ K& l$ l$ F+ Y
· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset ) A8 a, [+ j P; v) _· SVM – Smart Volume Management. } Z# [0 e; t4 |/ \% b4 M
· EAX? ADVANCED HD? 5.0 . l( X2 K4 p; m X 128 Voices $ |' X' c% M/ O! u* b EAX? Voice ; N, i+ K, T( v/ \' R EAX? PurePath? ' N4 N2 q, I( M Environment FlexiFX' X; G8 x z2 |& e
EAX? MacroFX? 3 G" T+ @0 A+ D3 z) q4 F Environment Occlusion?1 G+ I1 y v6 ]
· OpenAL Support 9 a) R/ N$ B: ?! h· Creative ALchemy$ a) s6 F8 j& u6 S
Provides multi-channel audio for legacy game titles running on Windows Vista?