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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:
) H0 w; P* K9 i, e& y  pOverview* r  i, _; W0 V- W9 B
The CA20K1 digital audio processor is a slave processor designed to
1 y) ?$ H% b. _  T9 o4 x. E" }  Daccelerator digital audio processing and is available in 0.13mm BGA package
% X+ q: |7 h) d/ j: n/ k  ksize 23mm by 23mm. The CA20K1 contain several special purposes
: N4 Q1 j& ^& @% ]7 L+ V& g' Hprocessing units including: a sample rate converter engine, a digital filter' i+ f7 y( F! ^7 U' c7 a. S
engine, a digital delay line accelerator know as the “tank engine”, a digital
& M0 r& V; T: s, O" b) b) F$ p  wfilter engine, a powerful mixer, a micro-programmable audio DSP, various  ^. e. L  a, W* m6 l& Z: y
digital I/O capabilities and bus mastering external memory interfaces. Unlike
' l7 f+ v8 P; G- Q6 |# N$ Tthe host interface control port the bus mastering “audio transport” supports. o2 \  L: [# ]+ k) U
burst mode accesses to the PCI and SDRAM interfaces. Host processor is
* f+ D1 J) M5 x% f4 _) prequired to control the CA20K1 through a 32-bit PCI bus or a generic
- X3 i" M( M( l: `- a6 A# omicroprocessor interface using a series of reads and writes to control  m/ J' q$ p/ e: P" K& }
registers.3 G* F3 ^1 Q* _! `' J
The X-Fi audio enhancement algorithm is integrated into the CA20K1 audio
+ X# O% z6 o6 n! W6 Nprocessor to extend the X-Fi enjoyment to the customers. As the next
  L: c+ L" `1 }, fgeneration high-resolution audio processor, CA20K1 provides dramatic
! k/ T( d3 C3 ]5 A0 timprovements to enhance listening experiences for movies and improves
( `; q3 k3 h3 L) V8 othe capabilities, performance and quality of audio. The enhanced sound. @6 H0 A! A  f4 ?. Q
quality makes movies more realistic. Users can truly immerse themselves in
- B4 b  l( y; P  ]' nscenes like underwater, volcano eruption, war zone etc. while enjoying the
( X( e7 }! g2 F! Y/ ]enhanced sound effect at home. The X-Fi module gives you an experience
8 E7 p# o! [$ }beyond studio quality. Users can enjoy the live concert experience in their
' Z( o. {% X! a, f4 ~own comfortable surroundings.7 w6 N" c  A: L) o, T/ x
Key Features* S* ~/ G4 C# V# S$ d8 |
· 400/200 MHz internal clock rate
# w8 g! \( N* J- P$ E8 ~; }# ]· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
/ W3 T) a% v0 o1 t: k· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
( \+ w8 u) y& F/ c2 B6 Z; F- Z) k' v· Sample rate slave capability to I2S and S/PDIF% n  A, o6 L5 }* N% X4 z: k7 f
· 16 independently configurable GPIOs pins# [. |# x' Y( F7 B. J( r+ A  [2 h
· I2C controller1 ]3 E& t) `5 y% d$ m" \2 t4 v5 l
· EEPROM interface for overriding reset defaults and storing software values
5 Q' `1 d3 p) n9 F! q' I· 5-volt tolerant 3.3V I/O
& `) Y) a$ u: g# n" Q7 T: G· Power management with an energy efficient 1.2V core# U( \1 a5 X  v, j# [: N
· 2 UARTs with programmable baud rates' c: A9 |) {0 H3 z  F
· 4-Thread, Interleaved Quartet DSP with 1,200 MFLOPS max throughput3 P/ O; M4 p# t( c  N
· Fully flexible routing – connect anything to anything – using “audio ring” bus.
% d2 b' s" r) I· Tank accelerator that supports fractional and modulated digital delay lines
: {! y2 f+ K# ?( b  ^· Very high quality Sample Rate Converter (SRC)
2 ^1 {9 j$ n# q. W- c/ j' h7 D% C3 D· Dual-mode microprocessor/PCI interface with shared pins( H* y, Z# e: M6 w) o( _
· 100 MHz SDRAM Interface for high bandwidth audio requirements
1 A0 p& N* i) e. D5 b· Paged Virtual Memory support9 L( Z1 L3 Y8 ?# _
· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support0 J/ \+ ?8 w! k: R3 k+ N
· Wall clock and interval timer tied to the sample rate
" y) N& i$ c+ c' `& P· Programmable PLL that supports multiple sample rates with a single crystal. {) y8 u  t' h2 z, j' N
· Host interrupt subsystem
2 u1 q& q: @4 b& O; V4 ^+ W& p) N* \Audio Enhancement3 C8 F9 R, f  u$ ^, Y/ J9 v
· X-Fi audio enhancement algorithm
0 l1 P6 [% k$ R1 D  J7 X# q& @ X-Fi CMSS-3D Surround; q/ y9 r( C9 i" [
- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
7 {/ R7 g  o' H3 R+ g- Stereo Surround for duplicating of stereo over multi-channel.
/ J+ V& }. K9 Y1 t( i$ n( l* m$ y, U* y X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
3 T, u% c# t+ n7 T# Bpositioning.6 V( h7 z  ?5 h( [2 R8 W) h* ], K7 g
 X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.3 E0 j/ A3 p4 Q
 X-Fi CrystalizerTM
# {- [; M. M. v( U8 ~- O6 A- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.
) j' b; j; ?. j/ `! ?: F- Creating a “puncher” and more dynamic listening experience.% Q* V. X5 [3 g; |6 e5 i
· THX Setup Console and THX Certification& j% a, B9 P2 F, g' J+ \; N! \2 h4 \
· Highest Quality Audio! v: b( A0 ~5 f+ Z
 24-bit/96kHz recording/ V/ N0 T7 r4 j4 K  j( ^
 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback6 C% J5 N7 r! \: v5 @* W
· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset! m! ]: H3 @6 y  L7 Y
· SVM – Smart Volume Management0 G8 K8 i7 R4 i2 A
· EAX? ADVANCED HD? 5.00 \* R- o( ?0 \0 a+ `
 128 Voices
8 E) N3 j. Q$ Q, c+ Y* R+ Q EAX? Voice
& I; S* A8 i% ?4 a) ]' l EAX? PurePath?: ^; T2 z5 V: q+ B) N" E6 j5 z
 Environment FlexiFX
* |5 {. a( Y+ y$ K$ r# x EAX? MacroFX?
0 O5 K. n* P; i( L8 y& V Environment Occlusion?
1 H0 S3 o, y; e' |· OpenAL Support" i* V- @- k7 M' W( N" q, _
· Creative ALchemy
# c' u9 d( s: u3 T9 X" |! h9 vProvides multi-channel audio for legacy game titles running on Windows Vista?
作者: pyncell    时间: 2008-9-19 09:31
换汤
6 y: \+ k9 s' J; R( |4 O4 jCA20k2
. V# z$ h' }6 W4 f3 M: FOverview
! C' }+ `; m  w. AThe CA20K2 digital audio processor is based on the CA20K1 architecture. The2 D8 m9 a# g& U8 c
CA20K2 uses an advanced PCI Express (PCIe) one-lane interface and adds an; ~5 `$ t4 W! V6 V+ ^+ _* \
embedded RISC processor to safegaurd against long control latencies
% G# |4 a7 r+ N; ^" k. ]introduced by the PCIe interface. The CA20K2 also expands the audio I/O% ?( m$ L( }, d/ R& s
capabilities and adds DDRAM for increased local memory bandwidth. In
! o, K" t7 c4 P/ i' q8 aaddition, the CA20K2 incorporates a Universal Audio Architecture (UAA)9 y: N. D8 ]) f; e
component and is available in 0.13mm BGA package size 19mm by 19mm.
( O4 I; u/ [# E: w8 KThe X-Fi audio enhancement algorithm is integrated into the CA20K2 audio
' {9 w8 q  @% e& g& Zprocessor to extend the X-Fi enjoyment to the customers. As the next
) o( g2 k( u% Sgeneration high-resolution audio processor, CA20K2 provides dramatic8 w/ h" N8 K. Q  J3 E4 A: J
improvements to enhance listening experiences for movies and improves- l* j7 ^( O0 @/ w* X; X+ G
the capabilities, performance and quality of audio. The enhanced sound5 j; z5 A( u/ |3 ]$ w
quality makes movies more realistic. Users can truly immerse themselves in
& A! c9 q1 X4 j2 Dscenes like underwater, volcano eruption, war zone etc. while enjoying the, ], K* F6 ?& F  z% ^
enhanced sound effect at home. The X-Fi module gives you an experience
7 e! l4 z6 i. Pbeyond studio quality. Users can enjoy the live concert experience in their
: `. q: e8 _- [* x' X1 @own comfortable surroundings." z$ R# {- O* t* F
Key Features2 x2 m' z3 I" B
· PCI Express 1.1 interface, up to 8 simultaneous transactions supported- F5 R$ B: N! R6 T1 c0 |9 u1 v/ E
· Sample Rate Converter engine* ^: v, t' P2 B" K- B4 n
· Digital Filter engine
, U) j8 U+ t! x, `0 B$ L! C· Tank, digital delay line accelerator
0 e& p) F  U8 p: ~0 w: B7 X· Audio Mixer
8 g. l7 h. V" E1 b· Microprogramable “Quartet” audio DSP) C% x* d: T/ A7 o( x- ]0 C) k+ g
· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs- f, J9 b+ d8 N+ P4 F; M* W0 {
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs0 I' V8 S. p& L
· Sample rate slave capability to I2S and S/PDIF4 Y! [. _8 }* F' k
· DDR SDRAM interface
4 R3 }5 r0 x3 k· Parameter Generator / Mixer5 p: i9 D' i5 \0 P  ~' d( L
· Universal Audio Architecture component
) Y" C6 M' I( \0 ^. u9 I· Integrated HD-Audio core with core switch
! M+ b7 Z- t  K, S8 c! @+ p: o· Up to 32 GPIOs9 k: ?2 M( m1 {' I  f! m; A8 R
· 16-bit general purpose parallel control bus
6 i; `1 D' A7 z4 d- M/ e% K· I2C master interface
( g/ p& M/ ~. Y& j8 M1 m, K2 CAudio Enhancement( W$ K, \5 L$ j% {
· X-Fi audio enhancement algorithm
1 Z' G4 p; ?4 q9 T) k: R X-Fi CMSS-3D Surround$ K; W3 B2 f  `, \) b
- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
0 h( w! M1 j; x: I, E6 \- Stereo Surround for duplicating of stereo over multi-channel.
/ u$ e) j1 L7 C X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
! k9 _0 L# C5 D' p8 X6 A& c5 J: g7 Bpositioning.; w# ?- d# L6 j! ?& ]
 X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
; X" z" }- v( v X-Fi CrystalizerTM
$ }$ V4 b$ I9 {+ A- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.  Q! B" G7 u# D
- Creating a “puncher” and more dynamic listening experience.6 N$ @+ c* m$ _2 L" c
· THX Setup Console and THX Certification" C0 A2 [4 N" @8 M3 ?+ b# }
· Highest Quality Audio
. a) K; H( w- m& G 24-bit/96kHz recording/ \2 F* E& w2 ?. L2 E7 H0 S
 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback# P: o) S# d: d3 |! o
· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset
: R3 z" M' K5 P" v4 j7 v: c· SVM – Smart Volume Management# k7 _- D& l: D" A& e, ^
· EAX? ADVANCED HD? 5.0
, g5 h! z) }& }+ {# F  _9 z/ G" a 128 Voices
0 e7 D2 \/ ]8 n EAX? Voice) I4 O. }+ R& y! l2 T- P
 EAX? PurePath?( z. [8 G% a% T8 P* l1 |3 p
 Environment FlexiFX
) O6 S, ~1 s7 |$ x6 d EAX? MacroFX?
# O5 ^0 h% f/ ]! W8 K$ l" M0 l Environment Occlusion?
  j! Y+ H0 `' P1 b1 [# Y6 A9 u· OpenAL Support
" F- B& Q' T9 w' F  p% @8 v· Creative ALchemy
/ E, G" q* E3 I2 }Provides multi-channel audio for legacy game titles running on Windows Vista?



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