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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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+ |* e& r* p/ f5 M% G" C; `CA20k1:
* ~% M1 |* X- ?6 IOverview( o7 ~1 k: U+ k/ V. T! u
The CA20K1 digital audio processor is a slave processor designed to0 z' X  x7 j2 V' q' l; ^6 D- u
accelerator digital audio processing and is available in 0.13mm BGA package5 Q( N- C$ u3 u
size 23mm by 23mm. The CA20K1 contain several special purposes, r- a. k5 D5 P5 E- Q
processing units including: a sample rate converter engine, a digital filter* r+ p; f4 D0 E2 O, Q/ o; S
engine, a digital delay line accelerator know as the “tank engine”, a digital
1 G! _- \& ?$ b( E! ^# _9 `filter engine, a powerful mixer, a micro-programmable audio DSP, various
$ K2 i4 [# ]5 f. z% q3 j* ~2 d+ Pdigital I/O capabilities and bus mastering external memory interfaces. Unlike
3 A2 R, h4 O- P  O) Y* pthe host interface control port the bus mastering “audio transport” supports
, k/ D6 r) S* Z- oburst mode accesses to the PCI and SDRAM interfaces. Host processor is
2 I% T/ |7 S, c, I8 Hrequired to control the CA20K1 through a 32-bit PCI bus or a generic( }  p+ @. u# A, X+ W
microprocessor interface using a series of reads and writes to control
% K# T2 p0 u7 h" |* F7 Dregisters.
% e. l9 i8 l: u: R1 l' e( e2 XThe X-Fi audio enhancement algorithm is integrated into the CA20K1 audio: x7 x# m6 j2 f# e' L- J
processor to extend the X-Fi enjoyment to the customers. As the next& c2 s9 b1 B3 v1 m0 w6 H/ y1 _
generation high-resolution audio processor, CA20K1 provides dramatic( r3 S0 U7 A8 W( H# g
improvements to enhance listening experiences for movies and improves
6 ~5 C4 G+ h: |" p0 ]4 b/ Z0 uthe capabilities, performance and quality of audio. The enhanced sound' [) ]* _! P3 [& h# z$ R7 E) A
quality makes movies more realistic. Users can truly immerse themselves in; n: r1 T, b7 C! y, q4 C9 F
scenes like underwater, volcano eruption, war zone etc. while enjoying the* C7 a) b" ]# T7 x% R3 q5 b. E
enhanced sound effect at home. The X-Fi module gives you an experience8 `8 }' i7 Y) `
beyond studio quality. Users can enjoy the live concert experience in their: b2 @; U6 t0 M
own comfortable surroundings.; b+ ~7 U9 N- d5 V
Key Features( w0 D$ G& E1 }4 i. R
· 400/200 MHz internal clock rate9 @+ B, V# t( Z$ n
· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs4 ]' a1 ]" _0 Y
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs, k5 m+ P0 @4 b  `
· Sample rate slave capability to I2S and S/PDIF
& U) ~: d7 v2 y4 d" D4 H6 |0 q· 16 independently configurable GPIOs pins
. L7 z. G, U0 e7 `3 a. h· I2C controller/ E  E5 M+ d+ H1 J0 l8 C6 M
· EEPROM interface for overriding reset defaults and storing software values
4 d% h" v4 i& ^: [· 5-volt tolerant 3.3V I/O
# Y) u$ W9 t  G, a· Power management with an energy efficient 1.2V core" Y% e$ P9 B5 L
· 2 UARTs with programmable baud rates! B" g. {1 \5 I3 G; M7 u- o  t- a
· 4-Thread, Interleaved Quartet DSP with 1,200 MFLOPS max throughput, U: l7 P. I* G0 D- L0 C. Q" z
· Fully flexible routing – connect anything to anything – using “audio ring” bus.
1 a6 T) J1 w, o; J6 H· Tank accelerator that supports fractional and modulated digital delay lines; q8 e/ J% y7 ^$ i1 m/ H1 N$ _
· Very high quality Sample Rate Converter (SRC)* r# s0 B8 r! h8 |
· Dual-mode microprocessor/PCI interface with shared pins! J. n$ r. N" A5 G
· 100 MHz SDRAM Interface for high bandwidth audio requirements9 G) C8 Q# n, X- I; o$ t
· Paged Virtual Memory support* ^. @; b% ^6 R) u* r
· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support
2 u' f3 h) b. J% G; Y* d· Wall clock and interval timer tied to the sample rate
* L9 d1 q9 e& \$ L+ L· Programmable PLL that supports multiple sample rates with a single crystal, \) g9 M( [" |5 M$ B/ @/ w6 Q
· Host interrupt subsystem
5 p# r$ `9 p; U* Y" E1 l# _Audio Enhancement
: F1 e2 M3 k  g$ k4 ~' e4 a· X-Fi audio enhancement algorithm
8 U) ~7 x' ~$ Q& } X-Fi CMSS-3D Surround
% g' Z: }! I/ ]+ f; B+ {8 q- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.6 d6 K, ]# N* w- c5 Z
- Stereo Surround for duplicating of stereo over multi-channel.# c* u: [0 d* ?: {% U& A
 X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D7 @, Y( Z0 ~; I7 p/ [
positioning.# ~; o9 e! _0 `; C
 X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
4 Q3 w& |" _+ J$ z- w8 x X-Fi CrystalizerTM* s5 }# g/ u, j, J2 ]/ h
- Enhances musical dynamics by emphasizing sharp percussive sounds and transients., f( F$ `+ ]! \  c
- Creating a “puncher” and more dynamic listening experience.
& G& w! T( \$ ~3 }· THX Setup Console and THX Certification- Q5 W/ t* `  P  M" s5 A
· Highest Quality Audio/ I' d7 R* O  l9 D
 24-bit/96kHz recording
  e4 X, H% y$ W% \ 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
9 V2 Z: R# @) _: q1 }( a· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset
8 z# T# D8 B6 n( J9 }· SVM – Smart Volume Management: _0 d/ ]0 Y, b5 [( N) N
· EAX? ADVANCED HD? 5.0, W, O; @, d/ I3 z* m0 ~
 128 Voices
+ }- `7 w$ {/ d4 @- j: n% q EAX? Voice
" M, f4 N1 x% v: t- U EAX? PurePath?( I$ w; H4 q% b/ S
 Environment FlexiFX
/ h, ?0 F; I. ~* f: ~) d EAX? MacroFX?
# x% C, c2 ]; d9 n# w3 i1 k) g. N Environment Occlusion?; P* u' N( l+ c
· OpenAL Support
% \- O8 {4 d. c$ [' Y( g' u$ X" {· Creative ALchemy
5 Y4 U1 }# j) qProvides multi-channel audio for legacy game titles running on Windows Vista?
作者: pyncell    时间: 2008-9-19 09:31
换汤
1 h) }6 `3 q* O% L) @; KCA20k2
" q) U, ]* u3 J; |Overview7 z, K5 W, z- z1 \" ^6 z
The CA20K2 digital audio processor is based on the CA20K1 architecture. The
, P( s( U7 Z" D: o, SCA20K2 uses an advanced PCI Express (PCIe) one-lane interface and adds an
, J5 j( ^% H" s) `, i- Jembedded RISC processor to safegaurd against long control latencies
8 ?* O( `# \9 V2 q" e& Bintroduced by the PCIe interface. The CA20K2 also expands the audio I/O& E! ^: \$ s2 r# E9 A/ ^* O/ W# `
capabilities and adds DDRAM for increased local memory bandwidth. In
" N9 I+ V5 ~  V" c# n9 Oaddition, the CA20K2 incorporates a Universal Audio Architecture (UAA)
! O. G" m( d& T3 Wcomponent and is available in 0.13mm BGA package size 19mm by 19mm.
" H" g/ h( N. ?The X-Fi audio enhancement algorithm is integrated into the CA20K2 audio
- T7 R/ M& u) f9 Z8 z2 _processor to extend the X-Fi enjoyment to the customers. As the next! V! p1 r$ i( D, u# \+ m* ^) H- V
generation high-resolution audio processor, CA20K2 provides dramatic4 j6 b/ X" l0 |3 |/ ^/ O0 D( C
improvements to enhance listening experiences for movies and improves
! ]# Q- G  z' Pthe capabilities, performance and quality of audio. The enhanced sound
. g& G/ f6 k3 W3 h# k7 Iquality makes movies more realistic. Users can truly immerse themselves in
2 D: S; U' R6 Zscenes like underwater, volcano eruption, war zone etc. while enjoying the9 B4 L$ N0 g$ d
enhanced sound effect at home. The X-Fi module gives you an experience
; y' b7 w( u) p! v7 ]) lbeyond studio quality. Users can enjoy the live concert experience in their
4 m  t* z, ^2 k7 Y  X; Kown comfortable surroundings.
0 Q5 a$ N& ~7 LKey Features! B6 d) i3 [1 e. V9 Q7 a: W2 |7 Y
· PCI Express 1.1 interface, up to 8 simultaneous transactions supported, W- j8 F! G) x, q+ H' r
· Sample Rate Converter engine
' R  Q5 t+ l/ Q' N/ n1 @· Digital Filter engine
, p6 k" u1 H; |+ |, G4 b& ]· Tank, digital delay line accelerator+ u* q  J4 T8 O6 V- {% D
· Audio Mixer
9 o8 ~8 o( c! [& d6 e5 o; S· Microprogramable “Quartet” audio DSP
  r: f5 v9 s$ M: v0 O* u· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
6 V( k7 g  C! r! A8 d% v; m8 [" c8 A, H; e· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs/ ?' P# N0 T. Q
· Sample rate slave capability to I2S and S/PDIF
* [% X1 X6 Y7 p· DDR SDRAM interface
+ I2 Y* E# |9 W+ R) e$ m% x· Parameter Generator / Mixer
( Q: Q2 E6 n+ O2 e( b+ R4 M/ k) [· Universal Audio Architecture component* i7 ~/ E* y! K3 ]
· Integrated HD-Audio core with core switch
. @; s4 f3 e! f· Up to 32 GPIOs
% [5 `$ v2 G$ ~9 m# P0 M% d9 Z· 16-bit general purpose parallel control bus1 T% y, x: x% v; M
· I2C master interface
+ c' F" |% M+ m$ w& CAudio Enhancement
4 M& M2 i7 K- t" T) q+ R  J· X-Fi audio enhancement algorithm( Y$ ^, _' T/ {2 L- o
 X-Fi CMSS-3D Surround- a7 p, [0 \9 X. h
- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
8 o# X% i4 _+ W& g/ H/ L- Stereo Surround for duplicating of stereo over multi-channel.$ ^- q; a' q' z; J# f
 X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
$ D5 l% l: N' y7 h8 P2 W  ppositioning.
* W6 _) [. ~- e6 j7 N5 s X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
5 `" _" }/ n5 c6 b% h X-Fi CrystalizerTM
  ~. o9 W/ O" J1 f# ^& f- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.; j! b9 k. b# v" \" @5 B, n: l
- Creating a “puncher” and more dynamic listening experience." T4 l* w6 j$ p# C
· THX Setup Console and THX Certification4 [" }7 X- ?& l1 T
· Highest Quality Audio& G7 ?. Y+ G5 @$ V
 24-bit/96kHz recording) U. u/ y2 ^0 F. s) d
 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
% I4 E1 @( e3 v/ X% v) l· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset* w% x0 c5 Z2 N) X# t) D$ g( ^
· SVM – Smart Volume Management6 F$ \( [; y+ C! T3 x( f* H3 T
· EAX? ADVANCED HD? 5.00 g) _1 ]4 s. [0 R  R( i/ i8 J
 128 Voices* H9 \; w8 o2 h/ `
 EAX? Voice
5 i2 s$ l' h, W  `1 ` EAX? PurePath?
* [. A: l# ~5 C9 Q3 k Environment FlexiFX
/ J8 W8 Z, [) Q; W5 U) J2 l$ k+ S EAX? MacroFX?& a2 B" O# P' Y, X, x' I$ D+ W- k
 Environment Occlusion?
& @1 V8 c% O6 {' n8 d: f8 Y8 l  }· OpenAL Support
6 l& s8 _0 _% O7 R· Creative ALchemy
0 p  X: P5 m! ]; O) oProvides multi-channel audio for legacy game titles running on Windows Vista?



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