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PDF LC82221 Data sheet ( Hoja de datos )
| Número de pieza | LC82221 | |
| Descripción | Motion JPEG Decoder | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LC82221 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Ordering number : EN *5846
CMOS IC
LC82221L
Motion JPEG Decoder
Preliminary
Overview
The LC82221L is a full-color digital image data expansion
IC that accepts data in formats that essentially conform to
the JPEG standard. With the provision of frame memory,
this IC can input and output image data in standard video
formats. In addition, it also supports a wide range of
image display functions using that frame memory. As
compared to earlier JPEG ICs, this IC features simplified
JPEG functionality and a greater emphasis on display
functions. Thus it supports the creation of excellent cost-
performance ratio systems for applications that require a
display system.
Features
• High image quality image expansion using the JPEG
system
• Superlative cost performance achieved by only
providing decoding functions.
• Two built-in quantization tables.
• High-speed processing achieved by using fixed Huffman
tables. Application do not have to set up these tables.
• Two Huffman tables, one for luminance data and one for
chrominance data, are provided.
• Supports scaling factor parameters that allow the
quantization factor to be changed.
• DRAM for code data buffering and image data playback
can be connected directly.
• Applications can use either 2Mb or 4Mb DRAMs based
on the sizes of the image handled and the structure of the
system. However, 16-bit data path DRAMs must be
used.
• Image data is output in synchronization with an image
display synchronizing signal.
• Color structure of the code data is Y:U:V=4:1:1.
• Dedicated code data input bus provided to avoid loading
the host bus. DMA transfers are also supported.
• Users can select either RGB or YUV for image data
output.
• Built-in YUV to RGB color conversion circuit
• The LC82221L supports image sizes up to 1024 pixels
in the horizontal direction. The range of vertical sizes
handled can be set up arbitrarily, since it is limited by
the size of the DRAM provided.
• 3.3-V single-voltage power supply. Low power.
• The display position and display size can be set.
• SOI and EOI marker support
• Horizontal and vertical scrolling display functions
• Support for overwrite display, in which the next data for
expansion is displayed by overwriting the previously
expanded image data
Package Dimensions
unit: mm
3214-SQFP144
[LC82221L]
SANYO: SQFP144
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
62698RM (OT) No. 5846-1/7
1 page  
LC82221L
Continued from preceding page.
Pin Number
Pin Name
Type
Description
46 VDD
+3.3-V power supply
47 VSS
Ground
48
CDD11
I
49
CDD10
I
50
CDD9
I
Code bus data
51
CDD8
I
52
CDD7
I
53
CDD6
I
54 VDD
+3.3-V power supply
55 VSS
Ground
56
CDD5
I
57
CDD4
I
58
CDD3
I
Code bus data
59
CDD2
I
60
CDD1
I
61
CDD0
I
62 VSS
+3.3-V power supply
63 VDD
Ground
64 NC
65 NC
66 NC
67
TEST0
I
68
TEST1
I
69
TEST2
I Test pins *
70
TEST3
I
71
TEST4
I
72 VSS
Ground
73 VDD
+3.3-V power supply
74
ZOE
O Memory output enable
75
ZWEL
O Memory write enable (L)
76
ZRAS
O Row address strobe
77
ZCASL
O Column address strobe (L)
78
ZWEH/ZCASH
O Memory write enable (H)/column address strobe (H)
79 VSS
Ground
80
MD15
I/O
81
MD14
I/O
82
MD13
I/O
83
MD12
I/O
84
MD11
I/O
Frame memory interface data bus
85
MD10
I/O
86
MD9
I/O
87
MD8
I/O
88
MD7
I/O
89
MD6
I/O
90 VDD
+3.3-V power supply
Note:* These pins must be tied to ground.
Continued on next page.
No. 5846-5/7
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LC82221.PDF ] | |
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