Datasheet > BT849AKPF

BT849AKPF

更新时间： 2024-11-08 22:05:35

品牌	Logo	应用领域
其他 - ETC		商用集成电路 PC
页数	文件大小	规格书
141页	1081K
描述
Single-Chip Video Capture for PCI

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数据手册

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BT849AKPF 数据手册

Advance Information

This document contains information on a product under development.

The parametric information contains target parameters that are subject to change.

Bt848/848A/849A

Single-Chip Video Capture for PCI

Bt848 is

complete, low cost single-chip solution for analog

Distinguishing Features

NTSC/PAL/SECAM video capture on the PCI bus. As a bus master, Bt848 does

not require any local memory buffers to store video pixel data which signiﬁ-

cantly minimizes the hardware cost for this architecture. Bt848 takes advantage

of the PCI-based system’s high bandwidth and inherent multimedia capability. It

is designed to be interoperable with any other PCI multimedia device at the

component or board level, thus enabling video capture and overlay capability to

be added to PCI systems in a modular fashion at low cost. The Bt848 solution is

independent of the PCI system bus topology and may be used in a variety of sys-

tem bus organizations: directly on a motherboard planar bus, on a card for a pla-

nar or secondary bus.

•

Fully PCI Rev. 2.1 compliant

Auxiliary GPIO data port and video data

port

Supports image resolutions up to

768x576 (full PAL resolution)

Supports complex clipping of video

source

Zero wait state PCI burst writes

Field/frame masking support to throttle

bandwidth to target

Multiple YCrCb and RGB pixel

formats supported on output

Supports NTSC/SECAM/PAL analog

input

•

The Bt848A/849A are fully backward compatible enhancements to the

Bt848. The Bt848A and 849A both include all the functionality of the Bt848,

while adding support for peaking, single crystal operation, and digital camera

support.

Image size scalable down to icon using

vertical & horizontal interpolation

ﬁltering

•

Multiple composite and S-video inputs

Supports different destinations for even

and odd ﬁelds

Functional Block Diagram

XTAL

•

Supports different color space/scaling

factors for even and odd ﬁelds

Support for mapping of video to 225

color palette

VBI data capture for closed captioning,

teletext and intercast data decoding

MUXIN

Ultralock™

and

Clock Generation

Analog

Mux

IIC

JTAG

Video Timing

Unit

MUXOUT

PCI I/F

SYNCDET

REFOUT

Pixel Format

Conversion

AGC

Horizontal, Vertical

and Temporal

Scaling

Additional Features

in Bt848A/849A Only

Target

40 MHz

ADC

YIN

CIN

•

Supports peaking

630 Byte FIFO

DMA Controller

Requires only one crystal

Digital camera support through GPIO

port

Luma-Chroma

Separation

and

Initiator

40 MHz

ADC

•

Support for WST decode (Bt849A only)

Chroma Demod

Digital Camera

Input (Bt848A/849A)

and GPIO Port

Applications

•

PC TV

Intercast receiver

Desktop video phone

Motion video capture

Still frame capture

Teletext/Intertext

VBI data services capture

Brooktree Division • Rockwell Semiconductor Systems, Inc. • 9868 Scranton Road • San Diego, CA 92121-3707

619-452-7580 • 1-800-2-BT-APPS • FAX: 619-452-1249 • Internet: apps@brooktree.com • L848A_A

Brook ree

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中文翻译

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与BT849AKPF相关器件

型号	品牌	获取价格	描述	数据表
BT8510	ETC	获取价格	68-pin Plastic Leaded Chip Carrier (PLCC)
BT8510EPJ	ETC	获取价格	68-pin Plastic Leaded Chip Carrier (PLCC)
BT8510EPJB	ETC	获取价格	68-pin Plastic Leaded Chip Carrier (PLCC)
BT8510EPJC	ETC	获取价格	PCM Transceiver
BT852	ETC	获取价格	Digital Video Encoder
BT856	ETC	获取价格	YCrCb or RGB to NTSC/PAL Digital Video Encoder
BT857	ETC	获取价格	YCrCb or RGB to NTSC/PAL Digital Video Encoder
BT857KPJ	ETC	获取价格	Color Encoder Circuit
BT860	CONEXANT	获取价格	Multiport YCrCb to NTSC / PAL / SECAM Digital Video Encoder
BT860-BT861	CONEXANT	获取价格	Multiport YCrCb to NTSC / PAL / SECAM Digital Video Encoder

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