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LM1246 - RGB Preamplifier

Download the LM1246 datasheet PDF. This datasheet also covers the LM1 variant, as both devices belong to the same rgb preamplifier family and are provided as variant models within a single manufacturer datasheet.

Description

The LM1246 pre-amp is an integrated CMOS CRT preamp.

It has an I2C compatible interface which allows control of all the parameters necessary to directly setup and adjust the gain and contrast in the CRT display.

Features

  • n Fully addressable 512 Character OSD, simiilar in features to the LM1237/LM1247, with selectable 2 byte character addressing or LM1247 bank select modes n Internal 512 character OSD ROM usable as either (a) 384 2-color plus 128 4-color characters, (b) 640 2-color characters, or (c) some combination in between n Internal 512 character RAM, which can be displayed as one single or two independent windows n Enhanced I2C compatible microcontroller interface to allow versatile Page RAM access n n Ap.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (LM1-246.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

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Other Datasheets by National Semiconductor (Texas Instruments)

Part Number Description
LM124 Low Power Quad Operational Amplifiers
LM12434 12-Bit + Sign Data Acquisition System
LM12438 12-Bit + Sign Data Acquisition System
LM12454 12-Bit Sign Data Acquisition System
LM12458 12-Bit Sign Data Acquisition System

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM1246 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs November 2003 LM1246 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs General Description The LM1246 pre-amp is an integrated CMOS CRT preamp. It has an I2C compatible interface which allows control of all the parameters necessary to directly setup and adjust the gain and contrast in the CRT display. Brightness and bias can be controlled through the DAC outputs, which are well matched to the LM2479 and LM2480 integrated bias clamp ICs. The LM1246 preamp is also designed to be compatible with the LM246x high gain driver family.
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