Datasheet > ADV473

ADV473

更新时间： 2024-11-26 22:05:23

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	203K
描述
CMOS 135 MHz True-Color Graphics Triple 8-Bit Video RAM-DAC

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CMOS 135 MHz True-Color Graphics

Triple 8-Bit Video RAM-DAC

ADV473

FEATURES

MODES

ADV478/ ADV471 (ADV^®) Register Level Com patible

IBM PS/ 2,* VGA*/ XGA* Com patible

135 MHz Pipelined Operation

24-Bit True Color

8-Bit Pseudo Color

15-Bit True Color

8-Bit True Color

Triple 8-Bit D/ A Converters

Triple 256

8 (256

24) Color Palette RAM

Three 15

8 Overlay Registers

On-Board Voltage Reference

RS-343A/ RS-170 Com patible Analog Outputs

TTL Com patible Digital Inputs and Outputs

Sync on All Three Channels

Program m able Pedestal (0 or 7.5 IRE)

Standard MPU l/ O Interface

+5 V CMOS Monolithic Construction

68-Pin PLCC Package

SPEED GRADES

135 MHz, 110 MHz

80 MHz, 66 MHz

GENERAL D ESCRIP TIO N

T he ADV473 is a complete analog output, Video RAM-DAC

on a single CMOS monolithic chip. T he part is specifically

designed for true-color computer graphics systems.

T he ADV473 integrates a number of graphic functions onto one

device allowing 24-bit direct true-color operation at the maxi-

mum screen update rate of 135 MHz. It can also be used in

other modes, including 15-bit true color and 8-bit pseudo or in-

dexed color. T he ADV473 is fully PS/2 and VGA register level

compatible. It is also capable of implementing IBM’s XGA

standard.

APPLICATIONS

High Resolution Color Graphics

True-Color Visualization

CAE/ CAD/ CAM

Im age Processing

Desktop Publishing

(Continued on page 4)

FUNCTIO NAL BLO CK D IAGRAM

V_REFIN

V_REFOUT

SYNC

BLANK

VOLTAGE

REFERENCE

GENERATOR

OVERLAY PALETTE

15 x 8 RAM

VOLTAGE

REFERENCE

CONTROL

CIRCUIT

OL0

OL3

15 x 8 RAM

OVERLAYS

OPA

COLOR

PALETTE/

OVERLAY

PALETTE

SWITCHER

COLOR

PALETTE

SWITCHING

MATRIX &

PIXEL

RED

256 x 8

RAM

RED

DAC

RED

IOR

IOG

IOB

GREEN

256 x 8

RAM

MASK

GREEN

DAC

GREEN

BLUE

256 x 8

RAM

BLUE

DAC

CLOCK

CR0

CR1

CR2

CR3

MPU & PIXEL

PORT

CONTROL LOGIC

MODE CONTROL

REGISTERS

PIXEL MASK

REGISTERS

GREEN

REG

BLUE

REG

RED

REG

ADDRESS

REG

MPU PORT

ADV473

D0–D7

RD WR

RS1 RS2

RS0

AD V is a registered tradem ark of Analog D evices Inc.

*P ersonal System /2 and VGA are tradem arks of International Business Machines Corp.

REV. A

Inform ation furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assum ed by Analog Devices for its

use, nor for any infringem ents of patents or other rights of third parties

which m ay result from its use. No license is granted by im plication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.

Tel: 617/ 329-4700 Fax: 617/ 326-8703

12 3 4 5 6 7...12

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与ADV473相关器件

型号	品牌	获取价格	描述	数据表
ADV473KP100	ETC	获取价格	Video DAC with Color Palette (RAMDAC)
ADV473KP110	ADI	获取价格	CMOS 135 MHz True-Color Graphics Triple 8-Bit Video RAM-DAC
ADV473KP110-REEL	ADI	获取价格	暂无描述
ADV473KP135	ADI	获取价格	CMOS 135 MHz True-Color Graphics Triple 8-Bit Video RAM-DAC
ADV473KP35	ETC	获取价格	Video DAC with Color Palette (RAMDAC)
ADV473KP50	ETC	获取价格	Video DAC with Color Palette (RAMDAC)
ADV473KP66	ADI	获取价格	CMOS 135 MHz True-Color Graphics Triple 8-Bit Video RAM-DAC
ADV473KP66-REEL	ADI	获取价格	IC TRIPLE, PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PQCC68, PLASTIC, LCC-68, Digital to
ADV473KP80	ADI	获取价格	CMOS 135 MHz True-Color Graphics Triple 8-Bit Video RAM-DAC
ADV473KP80-REEL	ADI	获取价格	IC TRIPLE, PARALLEL, 8 BITS INPUT LOADING, 8-BIT DAC, PQCC68, PLASTIC, LCC-68, Digital to

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