SDA9288X Ver la hoja de datos (PDF) - Infineon Technologies

Número de pieza

componentes Descripción

Fabricante

SDA9288X

Single Chip PIP System

Infineon Technologies 

SDA 9288X

Having different line standards in inset and parent channels we have a so called mixed

mode display. It causes deformations in the aspect ratio of the inset picture. A special

mixed mode display is available for the picture size 1/9 (MIXDIS):

– Parent channel 625 lines, inset channel 525 lines: The inset picture is shifted down by

6 lines. By performing this shifting the centers of the inset pictures have the same

position for both line standards.

– Parent channel 525 lines, inset channel 625 lines: The inset picture gets a reduced

line number of 76. The first and the last 6 lines are omitted. This way the inset picture

size is the same as for 525 lines inset signals. The display shows the center part of

the original picture.

Synchronization of memory reading with the parent channel is achieved by processing

the parent horizontal and vertical synchronization signals in the same way as described

for the inset channel. The synchronization signals are fed to the IC at pin HP/SCP for

horizontal synchronization and pin VP for vertical synchronization. In the same way as

described for the inset channel the burst gate of the sandcastle signal can be used for

horizontal synchronization. In scan conversion systems also the inputs HPD/SCI and

VPD/VI are available if the input HVI is activated for inset synchronization.

Semiconductor Group

15

03.96

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