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LC82221 PDF даташит

Спецификация LC82221 изготовлена ​​​​«Sanyo Semicon Device» и имеет функцию, называемую «Motion JPEG Decoder».

Детали детали

Номер произв LC82221
Описание Motion JPEG Decoder
Производители Sanyo Semicon Device
логотип Sanyo Semicon Device логотип 

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LC82221 Даташит, Описание, Даташиты
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









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LC82221 Даташит, Описание, Даташиты
Block Diagram
LC82221L
No. 5846-2/7









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LC82221 Даташит, Описание, Даташиты
LC82221L
Specifications
Electrical Characteristics
Absolute Maximum Ratings at VSS = 0 V
Parameter
Maximum supply voltage
Input and output voltage
Input and output current
Operating temperature
Storage temperature
Symbol
VDD
VI, VO
II, IO
Topr
Tstg
Allowable Operating Ranges at Ta = –30 to +70°C
Conditions
Parameter
Supply voltage
Input voltage
Symbol
VDD
VIN
Conditions
Ratings
–0.3 to +4.6
–0.3 to VDD+0.3
–20 to +20
–30 to +70
–55 to +125
Unit
V
V
mA
°C
°C
min
3.0
0
Ratings
typ
3.3
max
3.6
VDD
Unit
V
V
DC Characteristics at Ta = –30 to +70°C, VDD = 3.0 to 3.6 V, VSS = 0 V
Parameter
Symbol
Conditions
Ratings
Unit
min typ max
Input high-level voltage
Input low-level voltage
Input high-level voltage
Input low-level voltage
Input high-level current
Input low-level current
Output high-level voltage
VIH1
VIL1
VIH2
VIL2
IIH
IIL1
IIL2
VOH
CMOS level inputs: (1)
0.7 VDD
CMOS level Schmitt inputs: (2)
0.75 VDD
VIN = VDD; All input pins (including bus pins)
VIN = VSS : (3)
VIN = VDD; Pins with pull-up resistors: (4)
IOH = –6 mA; All output pins
(including bus pins)
–10
–10
–100
VDD – 0.8
0.2 VDD
0.15 VDD
+10
+10
–10
V
V
V
V
µA
µA
µA
V
Output low-level voltage
VOL
IOL = 6 mA; All output pins
(including bus pins)
0.4 V
Output leakage current
Pull-up resistance
IOZ When set to high-impedance output: (5)
RUP (6)
–10 +10 µA
70 140 280 k
Applicable Pins
(1) CTLCPU, CTLA, CTLD, CLKSEL, CLK, CDD, TEST, MD, DG, DB, DR, ZPXEN, ZHSYNC, ZVSYNC, PXCLK
(2) ZCTLCS, ZCTLRD, ZCTLWR, ZRESET, ZCDCS, ZCDWR
(3) CTLCPU, CTLA, CTLD, CLKSEL, CLK, CDD, TEST, DG, DB, DR, ZPXEN, ZHSYNC, ZVSYNC, PXCLK, ZCTLCS, ZCTLRD, ZCTLWR, ZRESET,
ZCDCS, ZCDWR
(4) MD
(5) ZCTLRDY, CTLD, ZCDRDY, MD, DG, DB, DR
(6) MD
No. 5846-3/7










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