Datasheet > BT868

BT868

更新时间： 2024-09-15 22:39:39

品牌	Logo	应用领域
其他 - ETC		编码器
页数	文件大小	规格书
104页	2673K
描述
Flicker-Free Video Encoder with UltrascaleTM Technology

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中文翻译

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数据手册

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BT868 数据手册

Bt868/Bt869

Flicker-Free Video Encoder with Ultrascale^TMTechnology

The Bt868/869 is specifically designed for video systems requiring the generation of

high-quality flicker-free composite and Y/C (S-video) signals from various YCrCb or

RGB digital streams. The Bt868/869 accepts any input format from 640 x 480 to

800 x 600 resolution.

The Bt868/869 uses Conexant’s UltraScale™ technology to provide the most

advanced vertical and horizontal scaling necessary for the display of non-interlaced

data on interlaced devices such as the TV. The UltraScale™ technology converts the

lines of input pixel data to the appropriate number of output lines for producing a

full-screen, high-quality image.

The Bt868/869 performs 5-line vertical filtering, which includes poly phase

interpolation scaling for overscan compensation and flicker filtering. Horizontal

scaling for overscan compensation is achieved by altering the encoder clock

frequency. This approach preserves all of the high frequency components of the

input signals, which are essential for the highest quality display of text intensive

images such as web pages on TVs. The amount of flicker filtering and overscan

compensation is programmable.

Worldwide video standards are supported, including NTSC-M (N. America,

Taiwan, Japan), PAL-B,D,G,H,I (Europe, Asia), PAL-M (Brazil), PAL-N (Uruguay,

Paraguay), and PAL-Nc (Argentina). Bt868 and Bt869 are functionally identical, with

the exception that Bt869 can output Macrovision Level 7.0 anticopy algorithm.

Distinguishing Features

•

Digital RGB or YCrCb non-interlaced

input to interlaced or non-interlaced

analog TV output modes:

YCrCb Modes:

–

16-bit 4:2:2 multiplexed 8-bit

24-bit 4:4:4 multiplexed 12-bit

24-bit 4:4:4 non-multiplexed 24-bit

RGB Modes:

–

15/16 bit 5:6:5 RGB multiplexed 8-bit

24-bit 8:8:8 RGB mulitplexed 12-bit

24-bit 8:8:8 RGB non-multiplexed

24-bit

•

Digital RGB non-interlaced input to

analog RGB noninterlaced (VGA/SVGA)

output modes:

–

15/16 bit 5:6:5 RGB multiplexed 8-bit

24-bit 8:8:8 RGB mulitplexed 12-bit

24-bit 8:8:8 RGB non-multiplexed

24-bit

•

Support for NTSC/PAL outputs in the

following modes:

–

Interlaced and non-interlaced outputs

S-video output (simultaneous with

composite NTSC or PAL outputs)

Component YUV analog output mode

Functional Block Diagram

–

5-line vertical filtering scaling for

overscan compensation and flicker

filtering

Input

DEMUX

Color Space

Conversion

Flicker

Filter/Scaler

FIFO

P[23:0]

•

CCIR601 compatible input mode

Luma and chroma comb filtering

3 x 10-bit DACs

6 MHz Luma bandwidth

Macrovision 7.0 copy protection

80-pin PQFP package

3.3 V operation with 5 V tolerant IOs

2-line serial programming interface

Power-Down modes

Master/slave video timing operation

TV connected register flag

Automatic configuration

HSYNC*

VSYNC*

BLANK*

FIELD

FSADJUST

COMP

Timing

Internal

Reference

VREF

DACA

SIC

SID

Serial

Interface

ALTADDR

Video

DAC

DACB

Encoder

MUX

RESET*

SLEEP

SLAVE

PAL

DACC

VBIAS

BIAS

GEN

XTALIN

Clock

Generation

XTAL

OSC

PLL

CLKO

CLKI

Applications

XTALOUT

•

Desktop/Portable PCs with TV-Out

Living-room PCs

Internet PC/TVs

Internet Appliances

Data Sheet

100123B

September 2000

12 3 4 5 6 7...104

中文翻译

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