No.8096-2/17

LC749450NW

28.0

31.2

0.15

0.2

(0.5)

(1.25)

1

52

156

105

53

208

104

157

Package Dimensions

unit : mm

3261

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.