SAA7186 Просмотр технического описания (PDF) - Philips Electronics

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SAA7186

Digital video scaler

Philips Electronics 

Philips Semiconductors

Digital video scaler

Preliminary specification

SAA7186

1 FEATURES

• Scaling of video picture windows down to randomly

sized windows

• Processes maximum 1023 pixels per line and 1023 lines

per field

• Two-dimensional data processing for improved signal

quality of scaled video data and for compression of

video data

• 16-bit YUV input data buffer

• Interlace/non-interlace video data processing and field

control

• Line memories in Y path and UV path to store two lines,

each with 2 × 768 × 8 bit capacity

• Vertical sync processing by scale control

• Non-scaled mode to get full picture or to gate videotext

lines

• UV input and output data binary/two’s complement

• Switchable RGB matrix and anti-gamma ROMs

• 16-word FIFO register for 32-bit output data

• Output formats: 5-bit and 8-bit RGB, 8-bit YUV or 8-bit

monochrome

2 GENERAL DESCRIPTION

The CMOS circuit SAA7186 scales and filters digital video

data to randomly sized picture windows. YUV input data in

4:2:2 format are required (SAA7191B source).

3 QUICK REFERENCE DATA

SYMBOL

VDD

IDD tot

VI

VO

LLC

Tamb

PARAMETER

supply voltage

total supply current (inputs LOW, without output load)

data input level

data output level

input clock frequency

operating ambient temperature range

MIN. TYP. MAX.

4.5

5

5.5

-

-

180

TTL-compatible

TTL-compatible

-

-

32

0

-

70

UNIT

V

mA

MHz

°C

4 ORDERING INFORMATION

EXTENDED TYPE

NUMBER

SAA7186

PINS

100

PIN POSITION

QFP

PACKAGE

MATERIAL

plastic

CODE

SOT317-2

May 1993

3

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