Philips DVDR880/001, Руководство по обслуживанию

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Circuit-, IC Descriptions and List of Abbreviations EN 189 DVDR880-890 /0X1 9.
2001 Aug 01 5
MPEG-2 video and MPEG-audio/AC-3 audio
encoder with multiplexer
SAA6752HS
2.2.2 HDD
BASED TIME SHIFT RECORDING
Hard Disc Drive (HDD) based time-shift systems enable
Personalized TV (PTV) functionality, providing consumers
with new powers of control over what and when to watch
broadcast content. With the audio and video content
recorded digitally, identification, search and retrieval
becomes a `no brainer' task as compared to traditional
VCR functionality. Combine this with electronic program
guides and intelligent control, and the PTV can also
analyse the viewers watching habits to search for
programs likely to be of interest and automatically
recorded in anticipation of the viewers preferences.
Since HDD recorders are closed systems, the recording
format stream can be proprietary. SAA6752HS flexible
multiplexing formats, support a number of recording
stream formats for HDD including MPEG Transport
Stream (TS) or MPEG Packetized Elementary Stream
(PES).
2.2.3 D
IGITAL
VCR (DVHS)
RECORDING
A DVHS player records streams based on MPEG
Transport Streams (TS) packed in logical tape tracks. The
SAA6752HS output streams are compliant with DVHS
standard requirements.
2.2.4 V
IDEO EDITING
/
TRANSMISSION
/
SURVEILLANCE
/
CONFERENCING
The SAA6752HS can operate as a stand-alone device in
all above applications. The SAA6752HS' full features and
flexibility allows customers to tailor functionality and
performance to specific application requirements. All
required control settings such as GOP size and bit rate
modes can be selected via I
2
C-bus.
3 QUICK REFERENCE DATA
4 ORDERING INFORMATION
Notes
1. MPEG-2 video and MPEG-audio/AC-3 audio encoder with multiplexer.
2. MPEG-2 video and MPEG-audio encoder with multiplexer, but without AC-3 audio encoder.
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V
DDP
digital supply voltage (pad cells) 3.03.3 3.6 V
V
DDCO
digital supply voltage (core) 2.3 2.5 2.7 V
V
DDA
analog supply voltage (oscillator and PLL) 2.3 2.5 2.7 V
I
DD(tot)
digital supply current 407 453 525 mA
P
tot
total power dissipation 1.2 1.4 1.9 W
f
DCXO
quartz frequency (digital controlled tuning) 27
×
(1
−
200
×
10
−
6
) 27 27
×
(1 + 20 0
×
10
−
6
) MHz
f
SDRAM
SDRAM clock frequency
−
108
−
MHz
f
SCL
I
2
C-bus input clock frequency 100
−
400 kHz
B output bit-rate 1.5
−
25 Mbit/s
V
IH
HIGH-level digital input voltage 1.7
−
3.6 V
V
IL
LOW-level digital input voltage
−
0.5
−
+0.7 V
V
OH
HIGH-level digital output voltage V
DDP
−
0.4
−
V
DDP
V
V
OL
LOW-level digital output voltage 0
−
0.4 V
T
amb
ambient temperature 0
−
70
°
C
TYPE NUMBER
PACKAGE
NAME DESCRIPTION VERSION
SAA6752HS/01
(1)
SQFP208 plastic shrink quad ?at package; 208 leads (lead length 1.3 mm);
body 28
×
28
×
3.4 mm; high stand-off height
SOT316-1
SAA6752HS/02
(2)