|
|
|
부품번호 | CS4925 기능 |
|
|
기능 | Multi-Channel Digital Audio Decoders | ||
제조업체 | Cirrus Logic | ||
로고 | |||
전체 30 페이지수
CS4923/4/5/6/7/8/9
Multi-Channel Digital Audio Decoders
l CS4923/4/5/6/7/8 features
— Optional Virtual 3D Output
— Simulated Surround and Programmable Effects
— Real Time Autodetection of Dolby Digital®,
DTS®, MPEG Multi-Channel and PCM
— Flexible 6-channel master or slave output
l CS4923/4/5/6/7/8/9 features
— IEC60958/61937 transmitter for compressed-
data or linear-PCM output
— Dedicated 8 kilobyte input buffer
— DAC clock via analog phase-locked loop
— Dedicated byte wide or serial host interface
— Multiple compressed data input modes
— PES layer decode for A/V synchronization
— 96-kHz-capable PCM I/O, master or slave
— Optional external memory and auto-boot
— +3.3-V CMOS low-power, 44-pin package
l CS4923/4/5/6 features
— Capable of Dolby Digital® Group A Performance
— Dolby bass manager and crossover filters
— Dolby Surround Pro Logic® Decoding
l CS4925/7: MPEG-2 Multi-Channel Decoder
l CS4926/8: DTS Multi-Channel Decoder
l CS4929: AAC 2-Channel (Low Complexity)
and MPEG-2 Stereo Decoder
Description
The CS4923/4/5/6/7/8 is a family of multi-channel digital
audio decoders, with the exception of the CS4929 as the
only stereo digital audio decoder. The CS4923/4/5/6 are
designed for Dolby Digital and MPEG-2 Stereo decoding. In
addition the CS4925 adds MPEG-2 multi-channel decoding
capability and the CS4926 provides DTS decoding. The
CS4927 is an MPEG-2 multi-channel decoder and the
CS4928 is a DTS multi-channel decoder. The CS4929 is an
AAC 2-channel and MPEG-2 stereo decoder. Each one of
the CS4923/4/5/6/7/8/9 provides a complete and flexible
solution for multi-channel (or stereo in the case of the
CS4929) audio decoding in home A/V receiver/amplifiers,
DVD movie players, out-board decoders, laser-disc players,
HDTV sets, head-end decoders, set-top boxes, and similar
products.
Cirrus Logic’s Crystal Audio Division provides a complete set
of audio decoder and auxiliary audio DSP application
programs for various applications. For all complementary
analog and digital audio I/O, Crystal Audio also provides a
complete set of high-quality audio peripherals including:
multimedia CODECs, stereo A/D and D/A converters and
IEC60958 interfaces. Of special note, the CS4226 is a
complementary CODEC providing a digital receiver, stereo
A/D converters, and six 20-bit DACs in one package.
ORDERING INFORMATION
CS4923xx-CL 44-pin PLCC (xx = ROM revision)
CRD4923 Reference design with CS4226
CDB4923 Evaluation board
RESET
RD, WR, SCDIO,
DATA7:0,
R/W, DS, SCDOUT,
EMAD7:0,
EMOE, EMWR, PSEL, A0, A1, ABOOT,
GPIO7:0 CS GPIO11 GPIO10 GPIO9 SCCLK SCDIN INTREQ
EXTMEM,
GPIO8
CMPDAT,
SDATAN2
CMPCLK,
SCLKN2
CMPREQ,
LRCLKN2
SCLKN1,
STCCLK2
LRCLKN1
SDATAN1
CLKIN
CLKSEL
Compressed
Data Input
Interface
Framer
Shifter
Digital
Audio
Input
Interface
Input
Buffer
Controller
RAM Input
Buffer
PLL
Clock Manager
Parallel or Serial Host Interface
24-Bit
DSP Processing
RAM RAM
Program Data
Memory Memory
ROM ROM
Program Data
Memory Memory
STC
RAM
Output
Buffer
DD
DC
Output
Formatter
MCLK
SCLK
LRCLK
AUDATA[2.0]
XMT958
FILT2 FILT1 VA AGND
DGND[3:1] VD[3:1]
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
Copyright © Cirrus Logic, Inc. 1999
(All Rights Reserved)
AUG ‘99
DS262F2
1
CS4923/4/5/6/7/8/9
1. CHARACTERISTICS AND SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS
(AGND, DGND = 0 V; all voltages with respect to 0 V)
Parameter
DC power supplies:
Positive digital
Positive analog
||VA| – |VD||
Input current, any pin except supplies
Digital input voltage
Ambient operating temperature (power applied)
Storage temperature
Symbol
VD
VA
Iin
VIND
TAmax
Tstg
Min
– 0.3
– 0.3
-
-
– 0.3
– 55
– 65
Max
3.63
3.63
0.4
± 10
5.5
125
150
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
RECOMMENDED OPERATING CONDITIONS
(AGND, DGND = 0 V; all voltages with respect to 0 V)
Parameter
Symbol Min Typ Max
DC power supplies:
Positive digital
Positive analog
||VA| – |VD||
VD
VA
3.13 3.3 3.47
3.13 3.3 3.47
- - 0.4
Ambient operating temperature
TA 0 - 70
DIGITAL D.C. CHARACTERISTICS
(TA = 25 °C; VA, VD[3:1] = 3.3 V ±5%; measurements performed under static conditions.)
Parameter
Symbol Min
Typ
High-level input voltage
VIH 2.0 -
Low-level input voltage
High-level output voltage at IO = –4.0 mA
VIL
VOH
-
VD × 0.9
-
-
Low-level output voltage at IO = 4.0 mA
VOL - -
Input leakage current
Iin - -
Max
-
0.8
-
VD × 0.1
1.0
POWER SUPPLY CHARACTERISTICS
(TA = 25 °C; VA, VD[3:1] = 3.3 V ±5%; measurements performed under operating conditions)
Parameter
Symbol Min Typ
Power supply current:
Digital operating: VD[3:1]
Analog operating: VA
- 225
-4
Max
435
8
Unit
V
V
V
mA
V
°C
°C
Unit
V
V
V
°C
Unit
V
V
V
V
µA
Unit
mA
mA
4 DS262F2
4페이지 CS4923/4/5/6/7/8/9
SWITCHING CHARACTERISTICS—CLKIN
(TA = 25 °C; VA, VD = 3.3 V ±5%; Inputs: Logic 0 = DGND, Logic 1 = VD, CL = 20 pF)
Parameter
Symbol
Min
CLKIN period for internal DSP clock mode
Tclki 20
CLKIN high time for internal DSP clock mode
Tclkih
8
CLKIN low time for internal DSP clock mode
Tclkil
8
CLKIN period for external DSP clock mode
Tclke
20
CLKIN high time for external DSP clock mode
Tclkeh
9
CLKIN low time for external DSP clock mode
Tclkel
9
Max
3800
25
Unit
ns
ns
ns
ns
ns
ns
CLKIN
Tclkih
Tclki
Tclkil
Figure 3. CLKIN with CLKSEL = VSS = PLL Enable
CLKIN
Tclkeh
Tclkel
Tclke
Figure 4. CLKIN with CLKSEL = VD = PLL Bypass
DS262F2
7
7페이지 | |||
구 성 | 총 30 페이지수 | ||
다운로드 | [ CS4925.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
CS4923 | Multi-Channel Digital Audio Decoders | Cirrus Logic |
CS4924 | Multi-Channel Digital Audio Decoders | Cirrus Logic |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |