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Sanyo Electric Components Datasheet

LC749450NW Datasheet

Silicon Gate CMOS IC Digital RGB Image Processor IC

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Ordering number : ENN8096A
SANYO Semiconductors
DATA SHEET
Silicon Gate CMOS IC
LC749450NW Digital RGB Image Processor IC
Overview
The LC749450NW RGB image processing IC converts interlaced video signals such as NTSC and PAL to progressive
scan and adjusts the image quality of that signal. Since the LC749450NW can operate at input clock frequencies up to
27 MHz, it is optimal as a pixel display device IC for high-quality high-resolution images. A high image quality
progressive scan signal playback system can be implemented easily by combining the LC749450NW with external
memory (two 16M SDRAMs).
Features
• Accepts 30-bit (4:4:4) YCbCr signals, 20-bit (4:2:2) YCbCr signals, and 10-bit RT.656 signals as inputs.
• Supports digital TV inputs (480i, 480p, 1080i, and 720p): 30-bit YCbCr digital signal input.
• 30-bit digital RGB signal inputs
• Produces 30-bit and 24-bit digital RGB (or YCbCr) signal outputs
• Provides both YCbCr/YPbPr RGB conversion and RGB YCbCr conversion
• Motion adaptive jaggy-less interlaced to progressive conversion
• 3:2 pull down
• Multiple noise reduction systems (1D, 2D, and 3D)
• Cross color and cross luminance cancellers
• Horizontal outline correction (LTI and CTI)
• Sharpness (horizontal and vertical)
• Sharpness adjuster (shading relief enhancement)
• White and black level expansion, white text correction (blue stretch)
• Flesh tone correction
• Hue and color gain adjustments
• Color exciter (6-phase RGBYMC independent saturation adjustment)
• Brightness and contrast adjustment
• White balance and black balance adjustment
• Gamma correction (Independent RGB, programmable LUT system)
• Dithering (10-bit and 8-bit)
• Clamp control
• Aspect ratio conversion (4:3 16:9)
• Clock generator (PLL) circuit
• SDRAM interface
• I2C bus and CPU interface circuits
SDPIC™: SANYO Digital Picture Improvement Core
SDPIC™ is a registered trademark of SANYO Electric Co., Ltd.
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
70105HK OT B8-7981 No.8096-1/17


Sanyo Electric Components Datasheet

LC749450NW Datasheet

Silicon Gate CMOS IC Digital RGB Image Processor IC

No Preview Available !

www.DataSheet4U.com
Package Dimensions
unit : mm
3261
156
157
31.2
28.0
105
104
LC749450NW
208
1
(1.25)
(0.5)
53
0.2 52
0.15
SANYO : SQFP208J (28 × 28)
IC Specifications
• Supply voltage: Core block: 1.8 V, I/O blocks: 3.3 V
• Maximum operating frequency: 27 MHz (IP conversion mode), 135 MHz (IP conversion not used)
• Package: 208-pin SQFP
Main Applications
• LCD TVs, monitors, and projectors
• PDP TVs and progressive scan TVs
• DVD players and recorders
Functional Overview
1. Input signal formats
The digital data port supports the following input signal formats.
30-bit RGB
30-bit (4:4:4) YCbCr/YPbPr
20-bit (4:2:2) YCbCr/YPbPr
10-bit signals conforming to the ITU-R BT.656 standard (horizontal and vertical sync inputs required)
NTSC (480i/480p), PAL (576i/576p), and HD (1080i/720p)
RGB (up to 135 MHz)
2. IP conversion block
For NTSC (480i) and PAL (576i) inputs the LC749450NW provides motion adaptive IP conversion or cinema IP
conversion (3:2 pull down) with both 2D/3D noise reduction and cross color/cross luminance cancellation.
External SDRAM (either 2 × 16 Mbits or 1 × 64 Mbits) is required when the functions of this block are enabled.
This block is set to bypass mode for 480p, 576p, 1080i, 720p, and PC (RGB) inputs.
(1) Motion adaptive IP conversion
The LC749450NW performs motion detection for each pixel that enters the IP conversion block. Based on that
result, the block performs interlaced to progressive conversion. Pixels that are found to be static are interpolated
between fields and pixels that are found to be moving are interpolated within the field.
Since this circuit takes correlations in the diagonal directions into account when performing inter-field
interpolation for moving sections of the image, it can create smooth video with minimal stair-stepping artifacts
(jaggies). Furthermore, this function can handle images that range from relaxed smooth video to video with violent
motion by setting parameters and changing the motion threshold values for each pixel.
Continued on next page.
No.8096-2/17


Part Number LC749450NW
Description Silicon Gate CMOS IC Digital RGB Image Processor IC
Maker Sanyo Semicon Device
Total Page 17 Pages
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