CA20k1 和 CA20k2 对比阅读

pyncell

{lol:]
CA20k1:
Overview
/ m. X; A2 r0 V, T& u4 tThe CA20K1 digital audio processor is a slave processor designed to
% ]7 \' C7 L( y! Y8 d9 K) |8 l/ vaccelerator digital audio processing and is available in 0.13mm BGA package
) f6 J$ M- P1 {) u# isize 23mm by 23mm. The CA20K1 contain several special purposes
processing units including: a sample rate converter engine, a digital filter
; w7 S: f1 u! K, W0 l* p1 wengine, a digital delay line accelerator know as the “tank engine”, a digital
filter engine, a powerful mixer, a micro-programmable audio DSP, various
digital I/O capabilities and bus mastering external memory interfaces. Unlike
the host interface control port the bus mastering “audio transport” supports
7 c  l8 f8 {& n# W" s5 @burst mode accesses to the PCI and SDRAM interfaces. Host processor is
required to control the CA20K1 through a 32-bit PCI bus or a generic
/ B  a. _% r0 j; f0 m. Gmicroprocessor interface using a series of reads and writes to control
registers.
The X-Fi audio enhancement algorithm is integrated into the CA20K1 audio
processor to extend the X-Fi enjoyment to the customers. As the next
, w% m- E: p3 P" N8 p. vgeneration high-resolution audio processor, CA20K1 provides dramatic
, x7 ^! I+ d  Q- g  b5 Rimprovements to enhance listening experiences for movies and improves
the capabilities, performance and quality of audio. The enhanced sound
5 W! f- Q6 D& j$ W* T% h. {quality makes movies more realistic. Users can truly immerse themselves in
2 ?0 s7 N  J2 @( ]2 h5 N! pscenes like underwater, volcano eruption, war zone etc. while enjoying the
0 n) g* \+ ]* M; B5 p0 denhanced sound effect at home. The X-Fi module gives you an experience
beyond studio quality. Users can enjoy the live concert experience in their
* p* A8 L- e9 y, i: D; a6 ^! Jown comfortable surroundings.
  h+ ?/ B# J% b( X+ CKey Features
7 U0 }8 m/ g, Q. F· 400/200 MHz internal clock rate
. H# T% n; V7 R6 n1 O+ L· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
& {: D. t0 M" l3 b/ Y· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
· Sample rate slave capability to I2S and S/PDIF
# U( q: l: X; s" [· 16 independently configurable GPIOs pins
7 I! |/ t( T6 c$ w· I2C controller
· EEPROM interface for overriding reset defaults and storing software values
· 5-volt tolerant 3.3V I/O
9 G4 n" H& y( Q· Power management with an energy efficient 1.2V core
, \4 n9 p% i3 L6 k* `9 s, U1 h· 2 UARTs with programmable baud rates
· 4-Thread, Interleaved Quartet DSP with 1,200 MFLOPS max throughput
· Fully flexible routing – connect anything to anything – using “audio ring” bus.
· Tank accelerator that supports fractional and modulated digital delay lines
· Very high quality Sample Rate Converter (SRC)
: l/ ~0 O6 x/ Z' Q; `2 ?: U· Dual-mode microprocessor/PCI interface with shared pins
7 o# u8 _. I1 y" K7 `· 100 MHz SDRAM Interface for high bandwidth audio requirements
& B3 l1 ^+ j$ {- \3 \· Paged Virtual Memory support
· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support
" B' A* O. q1 {4 G; T· Wall clock and interval timer tied to the sample rate
· Programmable PLL that supports multiple sample rates with a single crystal
% J, i) _/ P0 i' a" j· Host interrupt subsystem
; {$ m( j' z* G$ Q" y* T7 ?* YAudio Enhancement
0 D- ?; K1 q' X. H· X-Fi audio enhancement algorithm
 X-Fi CMSS-3D Surround
5 V$ \$ h: \" M  {, L3 f- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
$ [# a/ p. V7 g3 ^6 C- Stereo Surround for duplicating of stereo over multi-channel.
' c' v, I! X" Q X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
, m5 Q4 Y3 t  [4 rpositioning.
8 F  ?! ^6 e0 m  o& F X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
 X-Fi CrystalizerTM
7 J7 T. j" u- @2 _& ]1 s& h9 N- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.
- Creating a “puncher” and more dynamic listening experience.
# A" C  l3 j% j2 w' k! d5 U: @· THX Setup Console and THX Certification
· Highest Quality Audio
' }) p0 C+ @; }0 K# m- f; J1 W 24-bit/96kHz recording
( [  Q* q7 R6 U  K4 Z4 L) b 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
, y4 `$ E! P7 ?5 c, P: m7 D3 H) j· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset
· SVM – Smart Volume Management
; ]5 M7 `3 l# |/ k· EAX? ADVANCED HD? 5.0
# x+ `5 }" R: ~' @( n# u6 [- d 128 Voices
. N8 E/ p6 M# G- a EAX? Voice
* E5 t9 a$ `$ h+ H( m; n& o. _ EAX? PurePath?
 Environment FlexiFX
- k: ?7 ?; k# X" }2 n EAX? MacroFX?
 Environment Occlusion?
· OpenAL Support
· Creative ALchemy
Provides multi-channel audio for legacy game titles running on Windows Vista?

pyncell

换汤
# I% m5 P; S0 I) o" Q8 dCA20k2
- o: m4 w# W# C2 Q" K6 D8 {Overview
The CA20K2 digital audio processor is based on the CA20K1 architecture. The
CA20K2 uses an advanced PCI Express (PCIe) one-lane interface and adds an
embedded RISC processor to safegaurd against long control latencies
introduced by the PCIe interface. The CA20K2 also expands the audio I/O
capabilities and adds DDRAM for increased local memory bandwidth. In
addition, the CA20K2 incorporates a Universal Audio Architecture (UAA)
0 u1 F& V: M3 Y9 Scomponent and is available in 0.13mm BGA package size 19mm by 19mm.
The X-Fi audio enhancement algorithm is integrated into the CA20K2 audio
4 a2 @/ ?' i* r0 s' F6 sprocessor to extend the X-Fi enjoyment to the customers. As the next
generation high-resolution audio processor, CA20K2 provides dramatic
improvements to enhance listening experiences for movies and improves
/ o' S& P( e% Ethe capabilities, performance and quality of audio. The enhanced sound
+ [; Q5 _$ t9 S- ~+ u; ~4 S" Rquality makes movies more realistic. Users can truly immerse themselves in
3 \  t, p9 A! l  @/ Jscenes like underwater, volcano eruption, war zone etc. while enjoying the
enhanced sound effect at home. The X-Fi module gives you an experience
+ H; o$ p  q, {  R7 J, pbeyond studio quality. Users can enjoy the live concert experience in their
- R: x. M, D( I3 g# n; G" y, gown comfortable surroundings.
7 P7 e# A1 M2 z/ K; H& G5 MKey Features
· PCI Express 1.1 interface, up to 8 simultaneous transactions supported
· Sample Rate Converter engine
' c  j2 A8 x8 e3 U% p1 `+ p) P· Digital Filter engine
' Z2 J6 `) R$ B* ^5 B· Tank, digital delay line accelerator
( T# `! o; |; c· Audio Mixer
7 t3 Y# M$ t. g$ a" ^* Y0 _· Microprogramable “Quartet” audio DSP
5 i6 Y9 ~$ T9 u5 J5 O# V· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
· Sample rate slave capability to I2S and S/PDIF
4 h5 {  E& r# A4 E& m  r· DDR SDRAM interface
· Parameter Generator / Mixer
· Universal Audio Architecture component
* P, x: f) k) c· Integrated HD-Audio core with core switch
· Up to 32 GPIOs
· 16-bit general purpose parallel control bus
· I2C master interface
. V$ k4 l# o) \8 Z0 G; u" q8 WAudio Enhancement
· X-Fi audio enhancement algorithm
 X-Fi CMSS-3D Surround
- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
- Stereo Surround for duplicating of stereo over multi-channel.
/ u% }7 c4 F2 F' N9 L X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
positioning.
 X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
& ^' J6 N0 K- U9 v0 J. T; p X-Fi CrystalizerTM
- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.
- Creating a “puncher” and more dynamic listening experience.
· THX Setup Console and THX Certification
3 e9 J# r3 Z  H) t: p; H! c, [: _· Highest Quality Audio
 24-bit/96kHz recording
 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset
· SVM – Smart Volume Management
· EAX? ADVANCED HD? 5.0
; i9 h# `# |/ f7 X8 l7 e- m- z% \3 B 128 Voices
& m6 i. i1 H8 o$ b4 H  x1 ?9 Q EAX? Voice
+ X# U) U* r* ~5 x( v" `4 p EAX? PurePath?
: B. V- @1 `: `4 _5 H Environment FlexiFX
 EAX? MacroFX?
0 l  N2 s/ [: [( o8 w Environment Occlusion?
: j: d: |: _: Y( v* [% {· OpenAL Support
· Creative ALchemy
Provides multi-channel audio for legacy game titles running on Windows Vista?