CA20k1 和 CA20k2 对比阅读

pyncell

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CA20k1:
3 b7 V6 ~4 y# vOverview
The CA20K1 digital audio processor is a slave processor designed to
( H6 B; v6 R! h6 l5 g4 }accelerator digital audio processing and is available in 0.13mm BGA package
size 23mm by 23mm. The CA20K1 contain several special purposes
processing units including: a sample rate converter engine, a digital filter
engine, 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
" h6 Q# H4 R3 b" T9 l! ~/ oburst 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
microprocessor 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
. e$ n# ]+ `" C- E) O: g- mgeneration high-resolution audio processor, CA20K1 provides dramatic
improvements to enhance listening experiences for movies and improves
the capabilities, performance and quality of audio. The enhanced sound
. E' f+ v1 C3 k; }0 S0 \quality makes movies more realistic. Users can truly immerse themselves in
: n% B, \3 _9 Xscenes like underwater, volcano eruption, war zone etc. while enjoying the
& U( A( Z7 f" W4 M3 menhanced sound effect at home. The X-Fi module gives you an experience
beyond studio quality. Users can enjoy the live concert experience in their
& ^; h$ i5 R/ h. q5 M; Mown comfortable surroundings.
0 V: Q4 Y0 y: v, OKey Features
  P$ X$ T; M/ X% Z3 c· 400/200 MHz internal clock rate
$ a) x! Z$ d3 m/ p, ]3 X! r5 S· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
, Q5 n" K1 Q0 u$ H( i3 s$ o. @· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
· Sample rate slave capability to I2S and S/PDIF
· 16 independently configurable GPIOs pins
( v" b& E1 ~" I% [" G8 K+ s6 L+ b· I2C controller
· EEPROM interface for overriding reset defaults and storing software values
· 5-volt tolerant 3.3V I/O
- C- h$ h# x+ G' ^) F6 m; J· Power management with an energy efficient 1.2V core
3 v4 H+ [/ M  e9 S· 2 UARTs with programmable baud rates
: q( R# @, u' e( l3 P; r· 4-Thread, Interleaved Quartet DSP with 1,200 MFLOPS max throughput
# ^6 i+ }6 p# K' z. j$ ]- |· Fully flexible routing – connect anything to anything – using “audio ring” bus.
# p1 t2 y: X& r: ]& T& ^· Tank accelerator that supports fractional and modulated digital delay lines
$ G6 m; W: u! ^0 }' ^· Very high quality Sample Rate Converter (SRC)
· Dual-mode microprocessor/PCI interface with shared pins
% x- z& r6 ]$ [! X  E· 100 MHz SDRAM Interface for high bandwidth audio requirements
# E' d3 b& V" |3 b; j9 z9 q/ c· Paged Virtual Memory support
· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support
% w% t( n3 g4 c" y$ W7 x· Wall clock and interval timer tied to the sample rate
· Programmable PLL that supports multiple sample rates with a single crystal
· Host interrupt subsystem
. R( l' }* _  A' X5 m4 bAudio Enhancement
# ]$ ]3 @- w  ?4 `* @# k· X-Fi audio enhancement algorithm
2 h' V+ B7 Y. s6 Q" {2 Y& V+ V2 s X-Fi CMSS-3D Surround
/ P4 x/ Y+ F2 q  B' o, ~- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
0 y& c% b) a+ q& t, d' n' I3 V- Stereo Surround for duplicating of stereo over multi-channel.
 X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
, L/ r" B5 ~* j2 \  m5 |$ t. bpositioning.
. X! ?& `5 z, X9 C# k. ^1 G# ? X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
 X-Fi CrystalizerTM
- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.
- Creating a “puncher” and more dynamic listening experience.
- H7 K; y  I9 p$ f6 y1 T8 l· THX Setup Console and THX Certification
1 |3 W/ V; J7 l9 U) u1 _& {& e· Highest Quality Audio
 24-bit/96kHz recording
/ t5 e6 j% ~+ P( v* s* X3 u 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
9 J8 k) [. _* z9 Z( u- b· EAX? ADVANCED HD? 5.0
 128 Voices
* ^; A# f' V6 [: `4 C EAX? Voice
) Q- t# N7 e8 C' ]* z  s1 Q EAX? PurePath?
 Environment FlexiFX
 EAX? MacroFX?
 Environment Occlusion?
/ x3 v; E5 ]1 V4 B; w5 u( o9 k8 H· OpenAL Support
4 i! j( S6 [' r& z* X6 i· Creative ALchemy
Provides multi-channel audio for legacy game titles running on Windows Vista?

pyncell

换汤
  x! }5 J3 I7 k. L8 oCA20k2
Overview
The CA20K2 digital audio processor is based on the CA20K1 architecture. The
' B) t/ f* _! W4 c% z3 L' F. PCA20K2 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
, p: O0 ^& j8 R8 paddition, the CA20K2 incorporates a Universal Audio Architecture (UAA)
$ K  C0 P9 A$ ]1 gcomponent and is available in 0.13mm BGA package size 19mm by 19mm.
) o  Z" ^; H! f4 P" _, g% _The X-Fi audio enhancement algorithm is integrated into the CA20K2 audio
8 t! G' E) c7 t. x! }0 Fprocessor to extend the X-Fi enjoyment to the customers. As the next
generation high-resolution audio processor, CA20K2 provides dramatic
3 Y' t, f' Z0 q, z# ^improvements to enhance listening experiences for movies and improves
the capabilities, performance and quality of audio. The enhanced sound
  H7 P- H: g3 r6 ]* oquality makes movies more realistic. Users can truly immerse themselves in
6 Y8 b2 {4 g" u. n9 X# _scenes like underwater, volcano eruption, war zone etc. while enjoying the
enhanced sound effect at home. The X-Fi module gives you an experience
beyond studio quality. Users can enjoy the live concert experience in their
own comfortable surroundings.
# z- n' [9 S/ n$ _1 zKey Features
· PCI Express 1.1 interface, up to 8 simultaneous transactions supported
· Sample Rate Converter engine
% N3 i7 U& d$ L; i· Digital Filter engine
· Tank, digital delay line accelerator
· Audio Mixer
· Microprogramable “Quartet” audio DSP
$ M& B0 s8 W9 Q9 z, w) T& ?· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
- h% v, K4 u9 S- A7 G3 P6 L, J· Sample rate slave capability to I2S and S/PDIF
· DDR SDRAM interface
5 R& @- q2 o9 `" \- I· Parameter Generator / Mixer
· Universal Audio Architecture component
· Integrated HD-Audio core with core switch
· Up to 32 GPIOs
  k$ p. e2 c4 L/ n9 \; L· 16-bit general purpose parallel control bus
· I2C master interface
Audio Enhancement
% P2 k$ s8 a# V& B- x· X-Fi audio enhancement algorithm
, I1 i0 s5 j! N, ^+ O0 ~8 N 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.
 X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D
7 M" ]" \; b6 m. i9 x$ I- tpositioning.
$ z' i% n& p6 g% N/ j5 | X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
3 h, S0 G. e' W; U1 M( d X-Fi CrystalizerTM
- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.
- Creating a “puncher” and more dynamic listening experience.
* w. P8 I4 e# h# ^7 o: C· THX Setup Console and THX Certification
1 }/ V& S: Y9 X. S8 y/ S5 F# c· Highest Quality Audio
 24-bit/96kHz recording
  R5 O; P9 Q5 S* \% s, O  F 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
4 \( Y* C' ?; j/ l9 Q* J· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset
( F. S6 h, s5 j0 h. |5 Q$ a, Y5 g· SVM – Smart Volume Management
: |4 A( B2 @, L& ~; T% Q· EAX? ADVANCED HD? 5.0
6 k  I8 {; p/ L4 k0 P 128 Voices
- D) T/ }; O9 l; Y1 D* x0 B EAX? Voice
3 u0 R1 O; J1 q; K% M, [ EAX? PurePath?
 Environment FlexiFX
 EAX? MacroFX?
1 x- V- ?1 E0 p Environment Occlusion?
1 f+ K/ W9 i( ~0 u) W& Y1 w· OpenAL Support
9 f" V  ^% }# `7 {! [9 }* L· Creative ALchemy
Provides multi-channel audio for legacy game titles running on Windows Vista?