LM1207N RGB Video Amplifier IC

The LM1207 designed as a really high frequency video amplifier system specifically used in high resolution RGB monitor applications. Additionally to the three matched video amplifiers, the LM1207 comprises of three gated single-ended input black level clamp comparators for brightness control, three matched DC controlled attenuators for contrast control, and three DC controlled sub-contrast attenuators providing gain trim capability for white balance. All the DC control inputs provides high input impedance. And operates at a supply voltage range from 0V to 4V for straightforward interface to bus controlled alignment systems. The LM1207 also comes with blanking circuit that clamps video output voltage during blanking to within 0.1V above ground. This feature ensures blanking capability at the cathodes of the CRT. For CRT phosphor protection during power-down, a spot killer was provided.

RGB (Red, Green, and Blue) video format comprises of three signals that represent the amplitudes of the respective colors plus timing signals (sync) sometimes combined with the green component. Video amplifiers ICs defined as integrated circuits designed to process video signals. Amplifiers often mentioned as amps semiconductor devices found in electronics circuits. They’re designed to extend the facility of electronic signals. Amplifiers essentially take the input and increase either the output voltage, current or power.

A video amplifier reffered to a tool or module that amplifies, buffers and filters analog video signals to take care of signal fidelity across 75W cabling. Video amplifiers are widely usd in video cable extension, video systems, diskette head amplifiers, pulsed amplifiers in communications products and any circuit that needs high-performance, low-noise signal gain.

APPLICATION:

• High-resolution RGB CRT monitors
• Video AGC amplifiers
• Wideband amplifiers with gain and also DC offset controls
• Interface amplifiers for LCD or CCD systems