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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
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CA20k1:
  }$ V5 a* C& Q/ Q4 AOverview
+ S: R6 g) a( wThe CA20K1 digital audio processor is a slave processor designed to
3 t3 q8 R' E9 L" l6 H7 _" Caccelerator digital audio processing and is available in 0.13mm BGA package
' r2 A$ L) z5 v7 @5 F9 \3 }size 23mm by 23mm. The CA20K1 contain several special purposes+ C+ }; E9 f5 k+ y2 a
processing units including: a sample rate converter engine, a digital filter+ i- C% u( Q, |* [* }5 M4 j9 B
engine, a digital delay line accelerator know as the “tank engine”, a digital
4 _7 {; S& C* @7 p1 [filter engine, a powerful mixer, a micro-programmable audio DSP, various8 y5 T! j. K( U$ y& m% R
digital I/O capabilities and bus mastering external memory interfaces. Unlike
$ U3 m4 f' ~4 Z  A9 a9 F+ c' u" Rthe host interface control port the bus mastering “audio transport” supports
1 Z5 ^( K1 ~% _5 |burst mode accesses to the PCI and SDRAM interfaces. Host processor is: v: p; O7 r" U5 U
required to control the CA20K1 through a 32-bit PCI bus or a generic: W5 k) b* `" ]$ F" s0 z! a
microprocessor interface using a series of reads and writes to control# X2 k2 s/ Y) }
registers.: u4 X2 r7 O. `" b  S2 e; A
The X-Fi audio enhancement algorithm is integrated into the CA20K1 audio' T6 ?; V- X6 E! E" {5 N1 x# V! J
processor to extend the X-Fi enjoyment to the customers. As the next
. Q  G( n# }% I1 Wgeneration high-resolution audio processor, CA20K1 provides dramatic4 T6 Q0 H6 ^  ~3 ^* v; }" [& I
improvements to enhance listening experiences for movies and improves
1 [( a' @( {3 |+ Y; lthe capabilities, performance and quality of audio. The enhanced sound4 A8 v3 Z. Y3 A7 z/ \) M# j4 {
quality makes movies more realistic. Users can truly immerse themselves in* g/ T+ T1 M8 |0 {6 L
scenes like underwater, volcano eruption, war zone etc. while enjoying the# p) Y  c4 \" {/ L& M. X$ \
enhanced sound effect at home. The X-Fi module gives you an experience8 t0 S$ }6 |' ^. J# K
beyond studio quality. Users can enjoy the live concert experience in their! A, m4 s# @, n
own comfortable surroundings.9 d3 V# ?5 k- G( }) _
Key Features
, c- E( H* x" ]- R! S( M5 t, h· 400/200 MHz internal clock rate
, g% n$ n% H4 R. V7 d- y/ O- O· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs9 k" J- w6 y! `+ [
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
4 q# U) [* Q. `- z: O" C& [6 b. s2 o· Sample rate slave capability to I2S and S/PDIF: W- f1 U8 ?& n+ ^1 D! t, w! I5 h
· 16 independently configurable GPIOs pins# |" b  b5 V9 D& o5 a
· I2C controller* E+ Z& F( N# u/ X% {
· EEPROM interface for overriding reset defaults and storing software values4 `: B; E( B3 k$ G. h" K
· 5-volt tolerant 3.3V I/O/ Z$ m2 l7 K0 y  y; j; n7 R' F" v4 n
· Power management with an energy efficient 1.2V core/ U; Z/ P6 s' N
· 2 UARTs with programmable baud rates9 w& m) H* g7 Y4 S* ?0 R
· 4-Thread, Interleaved Quartet DSP with 1,200 MFLOPS max throughput
( T. y; L0 W$ C9 g· Fully flexible routing – connect anything to anything – using “audio ring” bus.* q1 Q- F8 l( `) F
· Tank accelerator that supports fractional and modulated digital delay lines
6 @2 R7 L) @( T3 k8 M# r· Very high quality Sample Rate Converter (SRC)
4 |. M0 A+ T: U; H· Dual-mode microprocessor/PCI interface with shared pins2 U4 G% u: Y4 u' h% o
· 100 MHz SDRAM Interface for high bandwidth audio requirements# q& S' `4 a  [" M9 Z9 P# |) H. y
· Paged Virtual Memory support! E, A3 x: r+ l; H& W" r) u9 X
· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support
* u( J# T4 L: j6 h" e) i) n. r9 N# ]1 B· Wall clock and interval timer tied to the sample rate
3 \8 N7 J. R- T· Programmable PLL that supports multiple sample rates with a single crystal" q: I+ x; `. f1 n% Z' n5 X5 u
· Host interrupt subsystem' ]7 W# Z' {$ y
Audio Enhancement
0 ^  z$ I7 I0 {/ T- d; C· X-Fi audio enhancement algorithm
6 `. q9 U' v3 c8 C4 q# ?& \7 w0 C X-Fi CMSS-3D Surround2 \9 R6 {/ e8 c- J
- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
0 }/ b0 C3 e0 M/ r9 C1 K- Stereo Surround for duplicating of stereo over multi-channel.
( ?$ s. _* i3 z X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
+ |7 r; G2 Y. @4 Z, qpositioning.; A+ s0 I( t6 r( n1 H6 s
 X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.2 j* f3 }4 @- K/ u, N: ~
 X-Fi CrystalizerTM: z* `, Y% ?5 F' O9 D& D: _# {
- Enhances musical dynamics by emphasizing sharp percussive sounds and transients., z( _, V' ^% V" e* q: p  J. ]" x) c
- Creating a “puncher” and more dynamic listening experience.
, k! I2 u6 p1 y! L" h+ F* @· THX Setup Console and THX Certification
. _: S$ o; S8 x8 H· Highest Quality Audio( H) s, d1 V+ x# C" K
 24-bit/96kHz recording' O  n: e3 X5 q. q
 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
3 X4 V: p8 J9 ]9 G# L! f. u, x2 U- y5 x· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset
1 m$ W4 o4 k( @0 Q0 w. x7 {  r7 O, R· SVM – Smart Volume Management+ F; T6 n+ |6 |% E" ^0 ?
· EAX? ADVANCED HD? 5.0+ V" ~9 p# ^* l6 p$ D
 128 Voices; D6 z; E5 M& `! x
 EAX? Voice
# R9 }! b6 l. ~ EAX? PurePath?4 O) K) o5 M$ |: t1 G1 [
 Environment FlexiFX
9 ]. U% w4 p* G) \  S8 v EAX? MacroFX?  {! o4 T6 p0 W4 S& p4 L# H% u) H
 Environment Occlusion?* {4 w) d/ F/ _9 b
· OpenAL Support2 E$ t" r3 T' [, J7 Z' k
· Creative ALchemy
7 J+ B, j. Z# m- K4 A3 M, aProvides multi-channel audio for legacy game titles running on Windows Vista?
作者: pyncell    时间: 2008-9-19 09:31
换汤
* K# x5 U  V; x6 f8 v2 Z' iCA20k2# G0 \3 F( l$ T$ g  ~0 J6 e2 Y
Overview
, O' l3 b  D' V& ]& k8 ^* j# kThe CA20K2 digital audio processor is based on the CA20K1 architecture. The4 ?6 _3 H2 [6 v! f/ A# w
CA20K2 uses an advanced PCI Express (PCIe) one-lane interface and adds an
$ P3 q; V2 h% R( h) Hembedded RISC processor to safegaurd against long control latencies- u( V: i9 }9 d! ]0 \
introduced by the PCIe interface. The CA20K2 also expands the audio I/O
3 W! P% K  F# a* F, }capabilities and adds DDRAM for increased local memory bandwidth. In
2 k9 E* f7 T' F3 _7 L3 }addition, the CA20K2 incorporates a Universal Audio Architecture (UAA)- x" _7 U$ u% _5 Y) F
component and is available in 0.13mm BGA package size 19mm by 19mm., }& A- d1 y8 B9 Y) O" F( [
The X-Fi audio enhancement algorithm is integrated into the CA20K2 audio9 U6 r3 |# q* \9 R* @, I) G- z
processor to extend the X-Fi enjoyment to the customers. As the next+ T+ v' W9 y2 B, y
generation high-resolution audio processor, CA20K2 provides dramatic+ ^) @7 f% D7 c
improvements to enhance listening experiences for movies and improves" p: `% f$ V9 I2 b
the capabilities, performance and quality of audio. The enhanced sound
# b8 u' L5 C- ^( H/ l# D- Hquality makes movies more realistic. Users can truly immerse themselves in
" v; ^& C4 G6 t$ Oscenes like underwater, volcano eruption, war zone etc. while enjoying the7 `8 @8 L  _1 K! B- Z
enhanced sound effect at home. The X-Fi module gives you an experience7 E, U3 a5 `$ R6 F- _" I% [% V. Z
beyond studio quality. Users can enjoy the live concert experience in their: L, m5 X$ ?2 ]  R( O/ E5 L) q2 g
own comfortable surroundings.
" l" P3 d7 E; Q( yKey Features
1 X# Z( j% {: e· PCI Express 1.1 interface, up to 8 simultaneous transactions supported2 |) a3 D$ X9 o4 z" i  L( a$ A# i- S
· Sample Rate Converter engine! P, q% Z% a) O$ P7 e' O+ n
· Digital Filter engine2 d7 \( V# Z" ^7 _+ Z
· Tank, digital delay line accelerator
" O! T, S1 \6 D& X" N· Audio Mixer
/ N) H3 f: o7 ]6 \· Microprogramable “Quartet” audio DSP
) B) J3 V$ e' \/ f* j· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs5 W, }+ h& W1 f5 D
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
+ v; d* y" Y6 O1 F· Sample rate slave capability to I2S and S/PDIF+ c& ^: c+ D: i
· DDR SDRAM interface
9 u9 S1 f7 f: X: M) P6 k! c* Z· Parameter Generator / Mixer5 O+ y2 A* V9 u
· Universal Audio Architecture component
6 ^$ a) l9 r4 a/ S4 U' e· Integrated HD-Audio core with core switch
. s9 c% D+ j$ U- G7 z; A3 G· Up to 32 GPIOs  p9 {: s4 a. @) j' ?# B- c
· 16-bit general purpose parallel control bus
& r$ v: d3 H. R. d' ?· I2C master interface' I4 u7 X+ }  u- U5 `
Audio Enhancement2 u8 [# o1 C1 q1 T' I& Z/ U
· X-Fi audio enhancement algorithm6 u" t* H3 n  N* K+ F# k; e
 X-Fi CMSS-3D Surround0 s2 c# F9 G& j6 o  I) N
- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.3 ^3 O! L0 ^; r7 Z1 F$ N: ^
- Stereo Surround for duplicating of stereo over multi-channel.
1 d, V9 m) o- z0 j& F X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
: Y' r6 E  {! ]- ?; ~& hpositioning.
: e4 S* S. q  h" p X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
+ I" p" F& O9 Z7 B: O/ P X-Fi CrystalizerTM
( A! N% U1 ]/ I- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.+ K/ H8 }5 a0 ]" `& z8 C7 d$ j2 z9 v
- Creating a “puncher” and more dynamic listening experience.
5 x6 z8 D0 p8 f! @4 T* ?; ^! |1 M# f3 `· THX Setup Console and THX Certification
) Y; i. _7 ]3 T7 q% P· Highest Quality Audio
% y3 g- R! C0 U; Y1 p' V 24-bit/96kHz recording+ W! c! ?% O0 b1 W! ^4 n: k/ g
 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
6 t; _  r9 l2 v( w$ e- K6 `1 V5 ]· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset) p% }# d- z7 R* X) _4 u  q
· SVM – Smart Volume Management2 L6 W$ }/ C" h4 }
· EAX? ADVANCED HD? 5.0
) V& b$ b. S% t! _ 128 Voices  O" w& v3 u9 W. F, t4 C
 EAX? Voice/ N! x! F9 C- {+ W6 Z3 V3 i
 EAX? PurePath?
3 l& @- b: K9 u7 Y. W4 V Environment FlexiFX
& c+ n1 [  |$ W; L5 q( I; w: s EAX? MacroFX?
0 h. _- p( h+ w) `4 V+ }+ z3 w% U Environment Occlusion?
# c5 S+ e/ Q2 v' v· OpenAL Support
6 [, N( p5 F* ^$ p9 }· Creative ALchemy3 K, Y$ a- g: h! F4 s
Provides multi-channel audio for legacy game titles running on Windows Vista?



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