參數(shù)資料
型號： SAA7205
廠商： NXP Semiconductors N.V.
英文描述： MPEG-2 systems demultiplexer
中文描述： MPEG - 2系統(tǒng)解復用器
文件頁數(shù)： 4/84頁
文件大小： 363K
代理商： SAA7205
1997 Jan 21
4
Philips Semiconductors
Preliminary specification
MPEG-2 systems demultiplexer
SAA7205H
2
GENERAL DESCRIPTION
This document specifies the MPEG-2 systems demultiplexer IC, SAA7205H, for use in MPEG-2 based digital TV
receivers, possibly incorporating conditional access. Such receivers are to be implemented in, for instance, a Digital
Video Broadcasting (DVB) set-top box, or Integrated Receiver Decoder (IRD). An example of a
demultiplexer/descrambler system configuration, containing a channel decoder module, source decoders, a system
microcontroller and a conditional access system is shown in Fig.1. The main function of the demultiplexer is to separate
relevant data from an incoming MPEG-2 systems compliant data stream and pass it to both the individual source
decoders and to the system microcontroller. To support descrambling, the demultiplexer interfaces with the descrambler
part of a conditional access system (optional). The demultiplexer therefore generates a 9 MHz descrambler chip clock.
3
QUICK REFERENCE DATA
4
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
DDD
V
DDD(core)
P
tot
f
CLK
T
amb
digital supply voltage
digital supply voltage for core
total power consumption
clock frequency
operating ambient temperature
4.5
3.0
0
5.0
3.3
5.5
3.6
380
27
70
V
V
mW
MHz
°
C
f
byte
≤
9 MHz
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
SAA7205H
QFP128
plastic quad flat package; 128 leads (lead length 1.6 mm);
body 28
×
28
×
3.4 mm; high stand-off height
SOT320-2
Fig.1 Demultiplexer system configuration.
handbook, full pagewidth
MGG374
CONDITIONAL
ACCESS
SYSTEM
DEMODULATOR PLUS
FORWARD ERROR
CORRECTOR
(AND DESCRAMBLER)
MICROCONTROLLER
SAA7205H
9 MHz DCLK
32K x 8
SRAM
AUDIO
SOURCE
DECODER
VIDEO
SOURCE
DECODER
TELETEXT
DECODER
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SAA7205H MPEG-2 systems demultiplexer
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相關代理商/技術參數(shù)
參數(shù)描述
SAA7205H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:MPEG-2 systems demultiplexer
SAA7206 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DVB compliant descrambler
SAA7206H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DVB compliant descrambler
SAA7207H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Reed Solomon decoder IC
SAA7207H/C1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Reed Solomon decoder IC
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