TSH173

TSH173 Triple video buffer with filter for SD video Features ■ ■ ■ ■ ■ ■ ■ ■ 4.5V to 5.5V single supply operation R-G-B, Y-Pb-Pr, Y-C-CVBS driving 3 channels with 6dB gain buffer 3 video reconstruction filters for SD 3 internal input DC level shifter No input capacitor is required Very low harmonic distortion Each output can drive AC- or DC-coupled 150Ω loads Tested on 5V power supply Data min. and max. are tested during production IN2 2 8.2MHz 5th order 8.2MHz 5th order DC Shifter Pin connections (top view) IN1 1 8.2MHz 5th order 6dB 8 OUT1 ■ ■ 6dB 7 OUT2 IN3 3 6dB 6 OUT3 5 GND Applications ■ ■ ■ ■ ■ www.DataSheet4U.com Set top boxes DVD players/recorders High-end video systems Standard definition TV (SD) Multimedia products +Vcc 4 SO8 Description The TSH173 is a single supply triple video buffer featuring an internal gain of 6dB and an internal low pass filter of 8.2MHz cut-off frequency for each channel to fit with Standard Definition requirements for video line interfaces. Another advantage of the TSH173 is its input DC level shifter to drive the video signal on a 75Ω video line without any damage to the synchronization tip, 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 signal between low and high output rails in the best position to improve linearity. This datasheet gives technical information on using the TSH173 as a R-G-B, Y-Pb-Pr, or Y-CCVBS driver for vid...