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DESCRIPTION

M52722SP is a video amplifier provided with OSD mixing function, and a semiconductor IC having three channels of a built-in wideband 180MHz amplifier.

Each channel has the functions of OSD blanking, OSD mixing, retrace line blanking, wideband amplifier, main and sub contrast control, and main brightness. Accordingly, it is structured to best fit the OSD-provided high resolution display. .

FEATURES

? Frequency band :

RGB...................................180MHz (at 3VP-P )

OSD....................................................50MHz

Input:

RGB..........................................0.7VP-P (Typ.)

OSD......................................more than 3VP-P(positive polarity)

BLK (for OSD)......................more than 3VP-P(positive polarity)

Retrace line BLK..................more than 3VP-P(positive polarity)

Output:

RGB..........................................4.0VP-P (max.)

OSD..........................................4.0VP-P (max.)

? Each control of contrast and OSD adjustment includes a main which allows 3 channels to be variable simultaneously, and a sub which allows each channel to be variable independently. Each control pin can be controlled within a range of 0 to 5V.

? A built-in feedback circuit inside IC provides a stable DC level at IC output pins.

APPLICATION

CRT display