CA20k1 和 CA20k2 对比阅读

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CA20k1:
% l8 k9 P. p- v- S3 ~& J. |/ xOverview
The CA20K1 digital audio processor is a slave processor designed to
accelerator digital audio processing and is available in 0.13mm BGA package
2 Z2 g: }: O) E& I" F. g+ v) T7 ^, Ssize 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
$ J1 L+ w6 o- Dfilter 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
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
$ Q8 M# Q' Q" d; W. Qmicroprocessor 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
1 q* \% c  d  v0 N: g3 V5 R. |generation high-resolution audio processor, CA20K1 provides dramatic
/ ]/ T8 A) l& \' Uimprovements to enhance listening experiences for movies and improves
6 f5 e" u# f6 v1 wthe capabilities, performance and quality of audio. The enhanced sound
quality makes movies more realistic. Users can truly immerse themselves in
6 D1 B! \$ W) \% wscenes like underwater, volcano eruption, war zone etc. while enjoying the
. h# d4 }' D8 t7 t' I0 P$ Q9 Cenhanced sound effect at home. The X-Fi module gives you an experience
/ Q8 U! j% Q# L" F/ T% v6 O; r0 ebeyond studio quality. Users can enjoy the live concert experience in their
$ o7 u, j: h; h6 z5 Kown comfortable surroundings.
2 }1 r; V& e  R+ y$ ?Key Features
· 400/200 MHz internal clock rate
· 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
· 16 independently configurable GPIOs pins
· I2C controller
· EEPROM interface for overriding reset defaults and storing software values
· 5-volt tolerant 3.3V I/O
· Power management with an energy efficient 1.2V core
· 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.
7 Z7 ~/ i' [0 B1 x/ h· Tank accelerator that supports fractional and modulated digital delay lines
· Very high quality Sample Rate Converter (SRC)
/ Y4 K6 L6 \7 D· Dual-mode microprocessor/PCI interface with shared pins
· 100 MHz SDRAM Interface for high bandwidth audio requirements
$ z* C3 @9 w# a( Z% K+ b) F( W· Paged Virtual Memory support
· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support
· Wall clock and interval timer tied to the sample rate
· Programmable PLL that supports multiple sample rates with a single crystal
· Host interrupt subsystem
Audio Enhancement
9 ^6 D+ P0 H, G5 S· X-Fi audio enhancement algorithm
$ L, H+ O3 `. V: D+ k' ^ X-Fi CMSS-3D Surround
- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
1 O3 H! b0 ^/ f7 q- \7 a- 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
positioning.
 X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
0 @1 a: V) X+ L: H2 \. h X-Fi CrystalizerTM
1 a$ y* T% ]% ^$ j* C' o- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.
- Creating a “puncher” and more dynamic listening experience.
" {, h* M' u% `+ J+ v  ^9 ~· THX Setup Console and THX Certification
· 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
- t3 G/ c" }4 }) v 128 Voices
 EAX? Voice
 EAX? PurePath?
 Environment FlexiFX
! N" ]& S  D# a/ |* h3 ~8 a, Z EAX? MacroFX?
; ]( o' c: \+ P: T Environment Occlusion?
" D. q9 R5 C! ^* b+ L7 y8 @0 G· OpenAL Support
; x6 n9 {4 Q/ P- z5 L8 H· Creative ALchemy
* _) W$ ?& l0 J  oProvides multi-channel audio for legacy game titles running on Windows Vista?

pyncell

换汤
CA20k2
Overview
4 P; Z5 N8 t1 E9 M5 Y5 G, rThe CA20K2 digital audio processor is based on the CA20K1 architecture. The
CA20K2 uses an advanced PCI Express (PCIe) one-lane interface and adds an
) Y% p- U1 q* Vembedded RISC processor to safegaurd against long control latencies
; d1 A% i, }# kintroduced by the PCIe interface. The CA20K2 also expands the audio I/O
capabilities and adds DDRAM for increased local memory bandwidth. In
6 O/ x% B' N7 O, Qaddition, the CA20K2 incorporates a Universal Audio Architecture (UAA)
component and is available in 0.13mm BGA package size 19mm by 19mm.
1 _6 ~/ g% E" b/ l9 l) W0 I9 UThe X-Fi audio enhancement algorithm is integrated into the CA20K2 audio
; x* T5 W* H; c3 D1 U! f4 S8 M. gprocessor to extend the X-Fi enjoyment to the customers. As the next
+ ?& X6 y4 K, W( lgeneration high-resolution audio processor, CA20K2 provides dramatic
improvements to enhance listening experiences for movies and improves
the capabilities, performance and quality of audio. The enhanced sound
- F$ A/ Q0 W" E0 D4 Pquality makes movies more realistic. Users can truly immerse themselves in
! E3 @* P$ V$ G9 o- S4 ascenes like underwater, volcano eruption, war zone etc. while enjoying the
) C" |! Q" d0 x% kenhanced sound effect at home. The X-Fi module gives you an experience
beyond studio quality. Users can enjoy the live concert experience in their
6 X# W4 W2 H; P  m9 _5 qown comfortable surroundings.
Key Features
2 {: n. ~" I5 m2 _+ G1 N  ]· PCI Express 1.1 interface, up to 8 simultaneous transactions supported
· Sample Rate Converter engine
4 ^4 R1 s' |) g; n. d1 x· Digital Filter engine
· Tank, digital delay line accelerator
· Audio Mixer
6 Q& V, o' Q/ h4 v· Microprogramable “Quartet” audio DSP
· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
8 m1 l" P* w; b# }) |· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
) S1 p$ e+ }$ t+ _# [% N· Sample rate slave capability to I2S and S/PDIF
1 j0 T8 ?3 Z- `5 c) k3 ?· DDR SDRAM interface
· Parameter Generator / Mixer
3 J5 t2 S2 O* M. k7 s* e, f  P· Universal Audio Architecture component
· Integrated HD-Audio core with core switch
2 n6 [! U8 W) T# V: I/ a& t· Up to 32 GPIOs
& O8 x3 H+ Q3 r( Y· 16-bit general purpose parallel control bus
; i; b/ X7 a" T/ S7 ^1 n· I2C master interface
5 a5 h2 q& `! F2 c- A) r3 NAudio Enhancement
4 O& g3 M' W, R2 M+ U· X-Fi audio enhancement algorithm
 X-Fi CMSS-3D Surround
- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
  g+ q) G3 `( T/ n- 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
! m$ `, m4 [5 k- Fpositioning.
1 {" O, V  [6 ^. \9 z. N9 p X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.
 X-Fi CrystalizerTM
5 Q+ r9 r% e/ Y9 T. h* C% ^$ G- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.
+ V2 P* w5 }9 J7 x, \" d6 g- Creating a “puncher” and more dynamic listening experience.
· THX Setup Console and THX Certification
: f# X, b1 l" x5 e0 U7 W5 f· Highest Quality Audio
 24-bit/96kHz recording
 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
7 f, y" m; k/ E· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset
· SVM – Smart Volume Management
7 W/ g+ \! @- Y! P1 h  O· EAX? ADVANCED HD? 5.0
 128 Voices
' q* D( M: ^( Z& c' T4 K! o/ d$ e: ~ EAX? Voice
) {# J# o4 `8 C( I0 n EAX? PurePath?
- a% j) R' y: t3 J' C4 V7 t; u Environment FlexiFX
 EAX? MacroFX?
1 l3 ^5 ~0 k! p# }( c Environment Occlusion?
7 D: `6 N% K* K% U7 P& S1 r5 m· OpenAL Support
! a" l4 Y, V; f) V0 n  r· Creative ALchemy
( K! z1 }" n- y8 Y9 g0 p0 DProvides multi-channel audio for legacy game titles running on Windows Vista?