CA20k1 和 CA20k2 对比阅读

pyncell

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0 g; N( U% J$ s. ?; o' R5 E) E- i; ]CA20k1:
Overview
7 m+ P& D; ]6 S! t0 _The CA20K1 digital audio processor is a slave processor designed to
6 _. Q, J  o7 w+ ~4 n! D1 Maccelerator digital audio processing and is available in 0.13mm BGA package
# r" W6 ^6 E" s) P( @$ Usize 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
" X& j3 e& G& v9 Ythe 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
microprocessor interface using a series of reads and writes to control
( E9 G: ?2 E  g, \$ i5 `3 i) Vregisters.
6 m* y" Z; K) P9 o/ @$ IThe X-Fi audio enhancement algorithm is integrated into the CA20K1 audio
- a/ q3 @  b# c5 J& i9 g, \processor to extend the X-Fi enjoyment to the customers. As the next
/ [, J" ]" z8 h& O; E) ygeneration high-resolution audio processor, CA20K1 provides dramatic
, f! f) F" G) aimprovements to enhance listening experiences for movies and improves
. N% W' q( }+ |" s9 cthe capabilities, performance and quality of audio. The enhanced sound
' v; r$ f; H# tquality makes movies more realistic. Users can truly immerse themselves in
scenes like underwater, volcano eruption, war zone etc. while enjoying the
; k3 z2 Y5 X7 d+ f- X1 genhanced sound effect at home. The X-Fi module gives you an experience
beyond studio quality. Users can enjoy the live concert experience in their
: f( n+ B' I) m: L( v- ]( W1 n6 p* Uown comfortable surroundings.
Key Features
· 400/200 MHz internal clock rate
· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
% p( H4 U$ Z; i# \  h· 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
- g6 S; _* T) O- c· I2C controller
2 y- |- L# l( ~  U· EEPROM interface for overriding reset defaults and storing software values
· 5-volt tolerant 3.3V I/O
7 ]: D# b# S. `6 R· Power management with an energy efficient 1.2V core
0 y: @! ^" q8 J' `* _· 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)
- i& e6 q/ S6 m· Dual-mode microprocessor/PCI interface with shared pins
· 100 MHz SDRAM Interface for high bandwidth audio requirements
· Paged Virtual Memory support
· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support
; f' `8 U1 c$ |) O· Wall clock and interval timer tied to the sample rate
6 e2 [- x8 n, D3 \3 v· Programmable PLL that supports multiple sample rates with a single crystal
: h; O6 M! e; L6 W* [3 X· Host interrupt subsystem
Audio 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.
 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.
. b! c; T6 ^8 J/ e/ J& w 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
· Highest Quality Audio
 24-bit/96kHz recording
 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback
7 X, Z: Y1 D: j' o8 u5 P· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset
· SVM – Smart Volume Management
, b  k5 e  X5 V( w/ c· EAX? ADVANCED HD? 5.0
; K5 V& J4 q7 a: | 128 Voices
& K) P3 o& v4 @( g1 a. E EAX? Voice
 EAX? PurePath?
 Environment FlexiFX
 EAX? MacroFX?
 Environment Occlusion?
" z7 c" F9 ~' v5 z6 w· OpenAL Support
· Creative ALchemy
1 C# [/ [1 g; j4 ~Provides multi-channel audio for legacy game titles running on Windows Vista?

pyncell

换汤
. k, D' H2 q$ L$ uCA20k2
5 a3 j$ J+ z$ YOverview
The CA20K2 digital audio processor is based on the CA20K1 architecture. The
& }! H" @% u1 NCA20K2 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
" A5 {7 A) x7 ]0 V0 g. vcapabilities and adds DDRAM for increased local memory bandwidth. In
& h/ f9 T2 U; g+ q* E4 Z# Yaddition, the CA20K2 incorporates a Universal Audio Architecture (UAA)
' ~7 K' Y) Y6 X* [' |. N& F3 Ycomponent and is available in 0.13mm BGA package size 19mm by 19mm.
1 B0 e1 R1 d1 G, M. cThe X-Fi audio enhancement algorithm is integrated into the CA20K2 audio
processor to extend the X-Fi enjoyment to the customers. As the next
4 c* [3 f5 D( Y9 }generation high-resolution audio processor, CA20K2 provides dramatic
9 w5 [; t9 I- c+ oimprovements to enhance listening experiences for movies and improves
the capabilities, performance and quality of audio. The enhanced sound
quality makes movies more realistic. Users can truly immerse themselves in
6 }! P$ ~0 s4 @6 j7 S! O4 i; Tscenes like underwater, volcano eruption, war zone etc. while enjoying the
0 P/ [# R. B4 I- i6 cenhanced sound effect at home. The X-Fi module gives you an experience
  A) S) O: z9 K; p2 }% B! I4 ^8 ebeyond studio quality. Users can enjoy the live concert experience in their
own comfortable surroundings.
Key Features
6 J1 W2 w; {- f% |9 W/ K· PCI Express 1.1 interface, up to 8 simultaneous transactions supported
· Sample Rate Converter engine
· Digital Filter engine
· Tank, digital delay line accelerator
· Audio Mixer
6 S5 S4 f" M! V' D· Microprogramable “Quartet” audio DSP
· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs
8 e- i9 h+ v) V6 O! \! J· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs
· Sample rate slave capability to I2S and S/PDIF
· DDR SDRAM interface
' E, Y. R! K0 u6 l8 A· Parameter Generator / Mixer
· Universal Audio Architecture component
· Integrated HD-Audio core with core switch
( r4 f( J: s8 A0 C/ |' \! U7 a! q· Up to 32 GPIOs
· 16-bit general purpose parallel control bus
· I2C master interface
Audio Enhancement
· X-Fi audio enhancement algorithm
 X-Fi CMSS-3D Surround
$ W' }- ^4 F) e# J8 P- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.
0 I1 Z* ?# v: p: ^- Stereo Surround for duplicating of stereo over multi-channel.
1 u8 H' Z/ @6 G2 |/ u3 ] 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.
 X-Fi CrystalizerTM
0 M+ a3 J) n" `- Enhances musical dynamics by emphasizing sharp percussive sounds and transients.
- Creating a “puncher” and more dynamic listening experience.
· THX Setup Console and THX Certification
; X3 G6 D- ^7 x  @2 I/ e% C· Highest Quality Audio
2 t, ?2 ^; `' c 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
7 v& j4 z2 i# ^1 _+ h' c3 K. d8 Y· SVM – Smart Volume Management
· EAX? ADVANCED HD? 5.0
4 u+ Q+ I9 h. U3 D/ v& ? 128 Voices
 EAX? Voice
0 P6 x: X0 e) j EAX? PurePath?
$ R! D! q& v, z8 [ Environment FlexiFX
 EAX? MacroFX?
 Environment Occlusion?
" X! m8 I6 J* j3 O( g) t3 p· OpenAL Support
· Creative ALchemy
3 g5 a1 e4 z7 a; ~( |  w  |Provides multi-channel audio for legacy game titles running on Windows Vista?