SAA2501 PDF даташит
Спецификация SAA2501 изготовлена «Philips» и имеет функцию, называемую «Digital Audio Broadcast DAB decoder». |
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Детали детали
Номер произв | SAA2501 |
Описание | Digital Audio Broadcast DAB decoder |
Производители | Philips |
логотип |
30 Pages
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INTEGRATED CIRCUITS
DATA SHEET
SAA2501
Digital Audio Broadcast (DAB)
decoder
Preliminary specification
File under Integrated Circuits, IC01
January 1995
Philips Semiconductors
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Philips Semiconductors
Digital Audio Broadcast (DAB) decoder
Preliminary specification
SAA2501
CONTENTS
2
3
4
5
6
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
7.15
7.16
7.17
7.17.1
7.17.2
7.17.3
7.17.4
7.18
7.19
7.20
7.20.1
7.20.2
7.20.3
7.20.4
7.20.5
7.20.6
7.20.6.1
7.20.7
7.20.8
7.20.9
7.20.10
7.20.11
7.20.12
FEATURES
APPLICATION
GENERAL DESCRIPTION
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING
FUNCTIONAL DESCRIPTION
Coding system
Basic functionality
SAA2501 clocks
Crystal oscillator
Clock frequencies when using the slave input
Clock frequencies when using the master input
Target applications; applying the SAA2501 with
2 ISO/MPEG sources
Buffered clock outputs
Functionality issues
Synchronization to input data bitstreams
Master input bit rate selection
Sample rate selection
Handling of errors in the coded input data
sub-band filter signals
Baseband audio processing
Decoding control signals
Coded data interfaces
The coded data master input interface
The coded data slave input interface
Slave input transfer speed of first frame
Slave input transfer speed of subsequent
frames
The sub-band filter interface
The baseband output interface
The L3 control interface
L3 signals
L3 transfer types
L3 interface initialization at an SAA2501 device
reset
L3 interface control
SAA2501 status
Data items
General data items
SAA2501 settings item
Input data frame header items
Error report item
Audio service synchronized data item
Ancillary Data/XPAD item
APU coefficients item
7.20.13
7.20.14
8
8.1
8.1.1
8.1.1.1
8.1.1.2
8.1.1.3
8.1.1.4
8.1.2
8.1.3
8.1.3.1
8.1.3.2
8.1.4
8.1.5
8.1.5.1
8.1.5.2
8.1.5.3
8.2
8.2.1
8.2.2
9
10
11
12
13
14
14.1
14.1.1
14.1.2
14.1.3
15
16
Speed limitations of the L3 interface
Default item data values after reset
APPENDIX
Preliminary specification 3-line ‘L3’ interface
Introduction
Addressing mode
Special function operational address
Data mode
Halt mode
Device interface reset
Extended addressing
Operational address declaration
Operational address invalidation
Example of a data transfer
Timing requirements
Addressing mode
Data mode
Halt mode
SAA2501 L3 protocol enhancement options
Testing L3RDY by polling L3DATA
Options to increase the timing accuracy of the
APU coefficient writing
LIMITING VALUES
DC CHARACTERISTICS
AC CHARACTERISTICS
APPLICATION INFORMATION
PACKAGE OUTLINE
SOLDERING
Plastic quad flat-packs
By wave
By solder paste reflow
Repairing soldered joints (by hand-held
soldering iron or pulse-heated solder tool)
DEFINITIONS
LIFE SUPPORT APPLICATIONS
January 1995
2
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Philips Semiconductors
Digital Audio Broadcast (DAB) decoder
Preliminary specification
SAA2501
1 FEATURES
• Advanced error protection
• Integrated audio post processing for control of signal
level and inter-channel crosstalk
• Demultiplexing of Program Associated Data (PAD) in
the input bitstream
• Automatic digital de-emphasis of the decoded
audio signal
• Separate master and slave inputs
• Automatic sample frequency and bit-rate switching in
master input mode
• Automatic synchronization of input and output interface
clocks in master input mode
• Selectable audio output precision; 16, 18, 20 or 22 bit
• Low power consumption
• Decoded sub-band signal and error flag outputs for error
concealment.
2 APPLICATION
• Digital Audio Broadcast systems as defined in
“Eureka 147”.
3 GENERAL DESCRIPTION
The SAA2501 audio source decoder supports ISO/IEC
MPEG layers I and II and all DAB specific features as
described in “Eureka 147 draft specification (EU147)”.
4 ORDERING INFORMATION
TYPE NUMBER
SAA2501H
NAME
QFP44(1)
PACKAGE
DESCRIPTION
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10 × 10 × 1.75 mm
VERSION
SOT307-2
Note
1. When using IR reflow soldering it is recommended that the Drypack instructions in the “Quality Reference Handbook”
(order number 9398 510 63011) are followed.
Supply of this “ISO/IEC 11172-3” audio standard Layer I or layer II compatible IC does not convey a licence nor imply a
right under any patent, or any Industrial or Intellectual Property Right, to use this IC in any ready-to-use
electronic product.
January 1995
3
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Номер в каталоге | Описание | Производители |
SAA2500 | MPEG Audio Source Decoder | Philips |
SAA2500H | MPEG Audio Source Decoder | Philips |
SAA2501 | Digital Audio Broadcast DAB decoder | Philips |
SAA2501H | Digital Audio Broadcast DAB decoder | Philips |
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