GENERAL DESCRIPTION

The ADV7150 (ADV?) is a complete analog output, Video RAM-DAC on a single CMOS monolithic chip. The part is specifically designed for use in high performance, color graphics workstations. The ADV7150 integrates a number of graphic functions onto one device allowing 24-bit direct True-Color operation at the maximum screen update rate of 220 MHz. The ADV7150 implements 30-bit True Color in 24-bit frame buffer designs. The part also supports other modes, including 15-bit True Color and 8-bit Pseudo or Indexed Color. Either the Red, Green or Blue input pixel ports can be used for Pseudo Color.

FEATURES

220 MHz, 24-Bit (30-Bit Gamma Corrected) True Color

Triple 10-Bit “Gamma Correcting” D/A Converters

Triple 256 310 (256 330) Color Palette RAM

On-Chip Clock Control Circuit

Palette Priority Select Registers

RS-343A/RS-170 Compatible Analog Outputs

TTL Compatible Digital Inputs

Standard MPU l/O Interface

10-Bit Parallel Structure

8+2 Byte Structure

Programmable Pixel Port: 24-Bit, 15-Bit and 8-Bit (Pseudo)

Pixel Data Serializer

Multiplexed Pixel Input Ports; 1:1, 2:1, 4:1

+5 V CMOS Monolithic Construction

160-Lead Plastic Quad Flatpack (QFP)

Thermally Enhanced to Achieve uJC< 1.08C/W

MODES OF OPERATION

24-Bit True Color (30-Bit Gamma Corrected)

@ 220 MHz

@ 170 MHz

@ 135 MHz

@ 110 MHz

@ 85 MHz

8-Bit Pseudo Color

15-Bit True Color

APPLICATIONS

High Resolution, True Color Graphics

Professional Color Prepress Imaging