mpeg audio / mpeg-2 video integrated decoder

mpeg audio / mpeg-2 video integrated decoder
STi3520
MPEG AUDIO / MPEG-2 VIDEO INTEGRATED DECODER
.
.
.
..
.
.
.
..
.
..
.
BRIEF DATA
SINGLE CHIP COMBINING THE DECODING
FUNCTIONS OF THE STi3500A VIDEO DECODER AND THE STi4500 AUDIO DECODER
ON-CHIP PLL ALLOWING FULL CHIP OPERATION WITH TWO EXTERNAL CLOCKS
VIDEO DECODER FULLY SUPPORTS MPEG2 MAIN PROFILE/MAIN LEVEL ([email protected])
AUTOMATIC VIDEO ERROR CONCEALMENT
ENHANCED ON-SCREEN DISPLAY GENERATOR : 16 COLORS/REGION, LINKED LIST
MEMORY MANAGEMENT
AUDIO DECODER SUPPORTS LAYERS I & II
OF MPEG
ALL POPULAR PCM AUDIO OUTPUT FORMATS SUPPORTED
STANDARD 8-BIT INTERFACE FOR MICROCONTROLLER AND COMPRESSED DATA
INPUT
SUPPORT FOR SYNCHRONOUS DRAM
3.3VPOWER SUPPLY, I/Os 5V TTL COMPATIBLE
0.5µm CMOS TECHNOLOGY
The STi3520 requires minimal support from an external microcontroller, which is mainly required to
initialise the video decoder at the start of every
picture. Separate audio and video data streams are
input through the 8-bit data port. Time stamps are
detected and made available to the microcontroller
for the managementof audio/videosynchronization.
User-defined bitmaps may be superimposedon the
displayed picture through use of the on-screen
display function. These bitmaps are written directly
into the DRAM memory by the microcontroller.
Undetected bitstream errors which would cause
decoder errors activate the error concealment
functions.
APPLICATIONS
DBS RECEIVER
DIGITAL TV RECEIVER
DIGITAL CABLE TV RECEIVER
DESCRIPTION
The video decoder is a real-time video decompression processor supportingthe MPEG-1 and MPEG2 standards at video rates up to 720 x 480 x 60Hz
or 720 x 576 x 50Hz. Picture format conversion for
display is performed by a vertical and a horizontal
filter (sample rate converter). External DRAM, typically of size 16 Mbits is required.
The audio decoder is compliant with layers I and II
of the MPEG standard. Sampling rates of 32, 44.1
and 48kHz can be used.
PQFP160
(Plastic Quad Flat Pack)
ORDER CODE : STi3520CV
This specification refers to versions 3.1 or later (marking CB or higher).
October 1996
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice.
1/1
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement