SAA6721 datasheet(2/72 Pages) PHILIPS

2 / 72 page

1999 May 11

Philips Semiconductors

Preliminary speciﬁcation

SXGA RGB to TFT graphics engine

SAA6721E

CONTENTS

FEATURES

1.1

RGB video input

1.2

YUV video input

1.3

Video processing

1.4

On screen display

1.5

Video output

1.6

Memory interface

1.7

Miscellaneous

GENERAL DESCRIPTION

QUICK REFERENCE DATA

ORDERING INFORMATION

BLOCK DIAGRAM

PINNING INFORMATION

FUNCTIONAL DESCRIPTION

7.1

Data path

7.2

System clocks

7.2.1

Input interface clock (VCLK)

7.2.2

Memory interface clock (MCLKI)

7.2.3

I2C-bus interface clock (SCL)

7.2.4

System clock (CLK)

7.2.5

TFT panel clock (PCLK)

7.3

RGB input port

7.4

YUV input port

7.5

TFT output port

7.5.1

Single pixel mode

7.5.2

Double pixel mode

7.6

Memory port

7.6.1

SDRAM memory configuration

7.6.2

SGRAM memory configuration

7.7

I2C-bus interface

7.8

De-interlacing algorithms

7.8.1

Static mesh mode

7.8.2

Spatial filtering

7.8.3

Temporal filtering

7.9

Scaling algorithm

7.9.1

Upscaling

7.9.2

Downscaling

SYSTEM DESCRIPTION

8.1

Programming registers

8.2

Clock management

8.2.1

Clock generation and multiplexing

8.2.2

Clock divider

8.3

RGB/YUV input interface

8.3.1

Sampling mode

8.3.2

RGB data sampling

8.3.3

Clamp pulse generation

8.3.4

Gain correction pulse generation

8.3.5

YUV data sampling

8.4

Video mode and synchronization signal

detection

8.5

Memory interface and de-interlacer unit

8.5.1

Memory interface limitations

8.5.2

Initialization of external memory

8.5.3

Frame and field memory

8.5.4

Frame recovery

8.6

Scaling

8.6.1

Downscaling

8.6.2

Upscaling

8.6.3

Upscaler transition function

8.7

Panning unit

8.8

Overlay port

8.8.1

Overlay insertion

8.8.2

Sync generation

8.8.3

Data sampling

8.8.4

OVCLK gating

8.9

Colour space matrix

8.10

Colour correction

8.11

On screen display

8.11.1

OSD generals

8.11.2

OSD window

8.11.3

OSD character matrix

8.12

Temporal dithering (frame rate controller)

8.13

Output interface

8.13.1

General

8.13.2

Frame generation

8.13.3

Timing reference signals

LIMITING VALUES

CHARACTERISTICS

TIMING CHARACTERISTICS

APPLICATION INFORMATION

PACKAGE OUTLINE

SOLDERING

14.1

Introduction to soldering surface mount

packages

14.2

Reflow soldering

14.3

Wave soldering

14.4

Manual soldering

14.5

Suitability of surface mount IC packages for

wave and reflow soldering methods

DEFINITIONS

LIFE SUPPORT APPLICATIONS

PURCHASE OF PHILIPS I2C COMPONENTS

SAA6721 Datasheet(PDF) 2 Page - NXP Semiconductors

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