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 {lol:] + b: g0 A, q& y6 P- c. |CA20k1: ) Z; j; J+ l! v. v5 z a1 AOverview k/ f/ A- ~, _6 q0 `
The CA20K1 digital audio processor is a slave processor designed to: I/ y# H+ }& J) V
accelerator digital audio processing and is available in 0.13mm BGA package9 Q) R4 d. i1 P% B, c3 v* g1 w
size 23mm by 23mm. The CA20K1 contain several special purposes+ E* z" D" W3 O( A$ l0 n c
processing units including: a sample rate converter engine, a digital filter' J0 Q( X' O# {8 v8 M! x
engine, a digital delay line accelerator know as the “tank engine”, a digital 6 E3 e; \8 I" M& M8 n( P9 Efilter engine, a powerful mixer, a micro-programmable audio DSP, various. U9 X. B2 k: x: a) B8 ?% F
digital I/O capabilities and bus mastering external memory interfaces. Unlike* I9 R* F4 Z' `7 a( b7 ^
the host interface control port the bus mastering “audio transport” supports3 G3 o. w+ B P( g4 w
burst mode accesses to the PCI and SDRAM interfaces. Host processor is2 \4 ~3 P |; T1 D9 Z; l
required to control the CA20K1 through a 32-bit PCI bus or a generic% a# W4 K0 V$ y# \) I, c" J% D
microprocessor interface using a series of reads and writes to control - m! L& h2 v, f4 o7 Iregisters.; t) B8 E9 m. z: F1 U& L) G
The X-Fi audio enhancement algorithm is integrated into the CA20K1 audio% w) ~: Q& w4 S6 n
processor to extend the X-Fi enjoyment to the customers. As the next / @7 n* a+ Q4 N$ Z1 `& ]6 \generation high-resolution audio processor, CA20K1 provides dramatic ; ?9 v6 D4 J: ?; e6 Ximprovements to enhance listening experiences for movies and improves 9 {2 N9 Y8 R4 x$ \$ s/ K+ Wthe capabilities, performance and quality of audio. The enhanced sound$ s$ s V5 @0 u
quality makes movies more realistic. Users can truly immerse themselves in" R! x3 T) X* ~& F
scenes like underwater, volcano eruption, war zone etc. while enjoying the ! ~8 o- w4 z6 R: S, W1 S/ `enhanced sound effect at home. The X-Fi module gives you an experience! y; t* n/ v8 W9 V8 e9 L6 L$ `2 v
beyond studio quality. Users can enjoy the live concert experience in their4 X6 R) S1 O1 A2 a) u
own comfortable surroundings. 4 H$ r' o! b( q% o. b( oKey Features 8 ]# X( U& A: N4 ?; D2 a+ y; m· 400/200 MHz internal clock rate $ N+ P5 l& t, W; s; [, {2 D· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs# d1 r3 \( L( ~8 |8 U
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs( H9 S! s `8 O# ]; j* }5 n
· Sample rate slave capability to I2S and S/PDIF 0 M% z1 k: K2 e; u( A· 16 independently configurable GPIOs pins " Y6 b, K+ i5 }% E! R9 s· I2C controller # O* `5 o: e0 B6 R· EEPROM interface for overriding reset defaults and storing software values 2 N/ Z7 H+ X% ~· 5-volt tolerant 3.3V I/O % B- p7 J- w1 P. M, M& a- t1 H1 Q· Power management with an energy efficient 1.2V core+ P: s1 }3 r/ j- `" L$ v4 x! w; `
· 2 UARTs with programmable baud rates ' r7 y8 r$ X, r: `· 4-Thread, Interleaved Quartet DSP with 1,200 MFLOPS max throughput 5 W0 k9 u" b f2 k5 W· Fully flexible routing – connect anything to anything – using “audio ring” bus.5 q& z* x# k! P V
· Tank accelerator that supports fractional and modulated digital delay lines 4 K' ?! A; S% {2 C$ S, { X4 C· Very high quality Sample Rate Converter (SRC)# I; y; L5 m$ {8 M( \/ r
· Dual-mode microprocessor/PCI interface with shared pins- Z- a3 W; g9 H# k* c9 X# w
· 100 MHz SDRAM Interface for high bandwidth audio requirements ! y/ M% I' Y; V$ J4 ?: o6 O· Paged Virtual Memory support) G0 a1 Y8 u0 y2 a. Y0 T
· Native 96kHz 24-bit, 192 KHz, 44.1 KHz, and 32 KHz support3 l0 P' s( H! a Y, ^
· Wall clock and interval timer tied to the sample rate2 K( c8 M2 @8 v* ~7 S
· Programmable PLL that supports multiple sample rates with a single crystal$ ?0 ?# Z. [3 l8 ^! ]4 R& F0 h
· Host interrupt subsystem+ [" t' ~8 t/ z% X5 ~: D U6 ?
Audio Enhancement 0 l+ p' G$ |: z0 l· X-Fi audio enhancement algorithm # V7 L# @% S. {: S$ k K2 @) \ X-Fi CMSS-3D Surround ( c. h0 g! W) \8 T9 u- z& S- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering.* }1 j( `# v! T% o
- Stereo Surround for duplicating of stereo over multi-channel. $ [! @5 j6 _" X( r% L" a X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D " \2 l: x' u- F' K0 mpositioning. % |% Y; `& F" m X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode.2 L: y4 D* G* @
X-Fi CrystalizerTM* F/ x* j; l% r0 P
- Enhances musical dynamics by emphasizing sharp percussive sounds and transients. ' j) ~' Z- q3 o: _) @* [5 M- Creating a “puncher” and more dynamic listening experience.5 P7 ~7 t9 k. Q% p+ r
· THX Setup Console and THX Certification # A: x* l k# f9 m8 B· Highest Quality Audio " n o' Y0 F% c* R( P. V 24-bit/96kHz recording 0 R; S a" p0 s9 h4 K3 N 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback, {8 q2 N5 U" R* H; L T- K7 O
· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset - Z& j2 f' k- _- u" ^" E· SVM – Smart Volume Management " U* T7 P9 V4 e' F· EAX? ADVANCED HD? 5.0# s! H/ o% V0 s7 H0 o
128 Voices 7 e2 \8 U {9 w/ g EAX? Voice ! d f8 ~: G l( z1 H9 P( p, h$ N EAX? PurePath? - F2 `$ g" N3 Z9 l+ O5 j. B Environment FlexiFX 5 C* z* G( h/ D' x# F EAX? MacroFX? 4 X1 z9 p( ^5 \% d Environment Occlusion?% K# K( U5 }* o2 A
· OpenAL Support% U9 p0 o9 f# V2 c
· Creative ALchemy ( v- h/ [/ w/ N0 Y4 d. i+ FProvides multi-channel audio for legacy game titles running on Windows Vista?作者: pyncell 时间: 2008-9-19 09:31
换汤2 O5 d( d8 X- U2 d
CA20k2 $ D% _* I# }5 m8 M( DOverview; T$ M8 Y0 x/ y) i9 E5 ?9 Z
The CA20K2 digital audio processor is based on the CA20K1 architecture. The7 b9 p4 J" |8 y
CA20K2 uses an advanced PCI Express (PCIe) one-lane interface and adds an 4 B6 G1 Z* v; y" Zembedded RISC processor to safegaurd against long control latencies 5 |! ~" w! j/ A1 Z/ R+ l: x9 pintroduced by the PCIe interface. The CA20K2 also expands the audio I/O 5 P* l0 [( [* {# P9 }% b- p7 P( m% Vcapabilities and adds DDRAM for increased local memory bandwidth. In + J# `; V4 G' R+ r, ~addition, the CA20K2 incorporates a Universal Audio Architecture (UAA)/ ~+ i( y0 D1 i
component and is available in 0.13mm BGA package size 19mm by 19mm.; [* Q# p) j7 P p0 i
The X-Fi audio enhancement algorithm is integrated into the CA20K2 audio: O% Y. B: T+ t, Z0 x
processor to extend the X-Fi enjoyment to the customers. As the next 9 z% J' g$ ^- q- J5 Sgeneration high-resolution audio processor, CA20K2 provides dramatic R& O! e; x5 u) q5 A. m+ Aimprovements to enhance listening experiences for movies and improves3 m+ {7 f% \+ @/ f- W x4 n
the capabilities, performance and quality of audio. The enhanced sound8 i2 Q' ^2 P' B3 X+ }$ d
quality makes movies more realistic. Users can truly immerse themselves in8 M! r, B* }0 _, s' v" {4 X5 i! x
scenes like underwater, volcano eruption, war zone etc. while enjoying the 9 P/ y6 N. [. l' Y& Genhanced sound effect at home. The X-Fi module gives you an experience 6 S3 ?3 S4 P' U: Nbeyond studio quality. Users can enjoy the live concert experience in their $ d7 ~0 ~" F, Z5 X8 A7 Vown comfortable surroundings. # N8 O) Y( U% r Y$ h; Q/ ]3 RKey Features# W7 B2 i2 W& w3 [% F7 M$ A) [
· PCI Express 1.1 interface, up to 8 simultaneous transactions supported3 @7 U/ ~/ I7 s* w
· Sample Rate Converter engine; u& c+ w4 L) J9 J
· Digital Filter engine % Z! \, Z+ e. q8 B! h% t, B· Tank, digital delay line accelerator5 A/ b& R. H9 h; T
· Audio Mixer$ U, f0 }+ W" C4 ~' R- F( |
· Microprogramable “Quartet” audio DSP: C* ?# S" l* ]8 ?2 s% T6 U2 f
· 4 stereo S/PDIF inputs and 4 stereo S/PDIF outputs! y4 L# ^8 p( D, [
· 4 stereo I2S digital inputs and 4 stereo I2S digital outputs- B' E8 k6 |/ d
· Sample rate slave capability to I2S and S/PDIF5 d8 f3 U. M) h4 t$ m# v
· DDR SDRAM interface/ D8 R% o$ X6 w
· Parameter Generator / Mixer # S- d! _7 [6 ]- u· Universal Audio Architecture component7 {5 ~* G2 H6 q1 ?
· Integrated HD-Audio core with core switch; z3 w( \: C; ~+ Q; r$ Y4 l( Q
· Up to 32 GPIOs% r S0 b' d5 k! J3 p+ M
· 16-bit general purpose parallel control bus ! _; {* n4 p/ {; V% i9 C4 g· I2C master interface: Q( b+ L( ?7 @/ y7 T* ^
Audio Enhancement1 E9 j! s, Z- A6 m! l8 z/ v
· X-Fi audio enhancement algorithm; s1 L' _8 K6 \; g
X-Fi CMSS-3D Surround / w4 s; G2 |' c" b$ a) r- Stereo Xpand for stereo to multi-channel upmix with ambient extraction and voice centering. ! \& K# g. @6 \- Stereo Surround for duplicating of stereo over multi-channel. . G- U+ @/ D1 O8 N1 V* q$ g& ?( J X-Fi CMSS-3D Headphone Expander for externalization of stereo content and very accurate HRTF for 3D . U& P$ O4 y2 r9 A' x' Y4 }positioning.! Z; M8 u* r8 @% e, _
X-Fi CMSS-3D Virtual for audio virtualization and enhancements over 2 loudspeakers. Stereo Surround mode. " }, V0 A2 Y' }4 X2 I4 J X-Fi CrystalizerTM# {; ^; L. s3 }/ f! m/ g
- Enhances musical dynamics by emphasizing sharp percussive sounds and transients. * N! I3 M5 u8 X4 P0 y! b$ o8 Y# x- Creating a “puncher” and more dynamic listening experience. * ], }5 G7 } b# W1 b· THX Setup Console and THX Certification 6 E" v B k! e Z· Highest Quality Audio - x: o: [+ R3 P; P 24-bit/96kHz recording , k( i" [) {; p; c 24-bit/96kHz 7.1 playback, 24-bit/192kHz Stereo playback - C; S2 s1 t E! ~# _/ T8 D) v· 10-Band, Multi-Channel Graphics Equalizer support presets and custom preset `) G" r( B! _
· SVM – Smart Volume Management/ ?5 ^# t* b6 v" A- B
· EAX? ADVANCED HD? 5.0 " l5 o7 U5 K6 l# ]! Q6 U 128 Voices 5 d/ X" v) |% u; {$ `7 E+ Y EAX? Voice, R- j5 |; c. f
EAX? PurePath?& Z: T1 C3 n8 `* \0 _
Environment FlexiFX; O. R% _; [- }( g7 ^+ }3 F
EAX? MacroFX?" j f4 q% V1 {! z- C- Y
Environment Occlusion? $ L0 c) v7 {% P( @6 n· OpenAL Support# W1 S9 _( S/ F# [% J4 @
· Creative ALchemy/ @2 p, n! [. L; q" k. E+ q
Provides multi-channel audio for legacy game titles running on Windows Vista?