TSH343ID

Overview

The TSH343ID is a triple single-supply video buffer manufactured by STMicroelectronics, designed for high-end video systems. It features an internal gain of 6dB and a bandwidth of 280MHz. The device operates on a 3V to 5.5V supply voltage within a -40°C to +85°C temperature range. Key electrical parameters include a typical slew rate of 780V/μs, a supply current of 14.4mA per buffer, and an input DC shift of 600mV. It is housed in a compact SO-8 package.

Feature Summary

• Features an internal input DC level shifter that allows driving video signals on 75Ω lines without damaging synchronization tips or requiring input capacitors.
• Provides very low harmonic distortion with specified performance for 150Ω and 100Ω loads.
• Includes matched amplifiers with 6dB internal gain to facilitate channel matching.

Applications

• High-definition TV (HDTV) systems
• Broadcast and graphic video equipment
• Multimedia products

Procurement Notes

Verify the specific ordering suffix against official documentation, as it determines the packing method. The 'ID' variant indicates tube packaging, while 'IDT' denotes tape and reel. Confirm availability status, as this component may be obsolete or restricted. Ensure the selected package matches the design requirements before finalizing procurement.

Selection Notes

Select the TSH343ID when designing Y-Pb-Pr drivers for video DAC outputs on 75Ω video lines. It is suitable for applications requiring a single 5V power supply and elimination of input coupling capacitors. Consider the TSH344 if RGB signal buffering is required instead of YPbPr. Verify thermal resistance and power dissipation limits for the chosen operating environment.

Part Context

The TSH343 belongs to the TSH343 series of video buffers from STMicroelectronics. It is specifically engineered for space-saving designs using the SO-8 plastic package. The device complements other video components like the TSH344, which handles RGB signals, providing a comprehensive solution for various video interface architectures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.