Description
The TSH343 is a triple single-supply video buffer featuring an internal gain of 6dB and a large bandwidth of 280MHz.
The main advantage of this circuit is that its input DC level shifter allows for video signals on 75Ω video lines without damage to the synchronization tip of the video signal, while using a single 5V power supply with no input capacitor. The DC level shifter is internally fixed and optimized to keep the output video signals between low and high output rails in the best position for the greatest linearity. Chapter 4 of this datasheet gives technical support when using the TSH343 as Y-Pb-Pr driver for video DAC output on a video line (see TSH344 for RGB signals).

■ Bandwidth: 280MHz
■ 5V single-supply operation
■ Internal input DC level shifter
■ No input capacitor required
■ Internal gain of 6dB for a matching between 3 channels ■ Very low harmonic distortion
■ Slew rate: 780V/µs
■ Specified for 150Ω and 100Ω loads
■ Tested on 5V power supply
■ Data min. and max. are tested during production

APPLICATIONs
■ High-end video systems
■ High Definition TV (HDTV)
■ Broadcast and graphic video
■ Multimedia products