SAB9079HS datasheet(2/48 Pages) PHILIPS

2 / 48 page

2000 Jan 13

Philips Semiconductors

Preliminary speciﬁcation

Multistandard Picture-In-Picture (PIP)

controller

SAB9079HS

FEATURES

• Suitable for single PIP, double window and multi PIP

applications

• Data formats 4 : 1 : 1 (all modes) and 4:2:2 (most

modes)

• Sample rate of 14 MHz, 720 Y*-pixels/line

• Horizontal reduction factors 1⁄1 3⁄4, 2⁄3, 1⁄2, 1⁄3, 1⁄4 and 1⁄6

• Vertical reduction factors 1⁄1, 1⁄2, 1⁄3 and 1⁄4

• PIP OSD for the sub channels displayed

• Detection of PAL/NTSC with overrule bit

• CTE/LTE like circuits in display part

• Replay with definable auto increment, picture sample

rate and picture number auto wrap

• Programmable Y*UV to RGB conversion matrix with

independent coefficients for NTSC and PAL sources

• Display clock and synchronisation are derived from the

main PLL

• Three 8-bit Digital-to-Analog Converters (DACs)

• Three 8-bit Analog-to-Digital Converters (ADCs)

(7-bit performance) with clamp circuit for each

acquisition channel

• Main and sub can write to the same VDRAM address

spaces under certain conditions; the reduction factors

should be the same

• Y* and UV pedestals on the acquisition sides

• Independent vertical filtering with 1 : 1 for UV and Y* at

the display part.

GENERAL DESCRIPTION

The SAB9079HS is a PIP controller for a multistandard

application environment in combination with a

multistandard decoder such as for example TDA8310,

TDA9143 or TDA9321H.

The SAB9079HS inserts one or two live video signals with

reduced sizes into the main/display video signal. All video

signals are expected to be analog baseband signals. The

analog signals are stripped signals without sync.

Therefore the luminance signal is referred to as Y*. The

conversion into the digital environment and back is done

on-chip as well as the internal clock generation.

The SAB9079HS is suitable for single PIP, double window

and multi PIP applications.

ORDERING INFORMATION

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

SAB9079HS

SQFP128

plastic shrink quad ﬂat package; 128 leads (lead length 1.6 mm);

body 14

× 20 × 2.72 mm

SOT387-3

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