TSH346IDT

Overview

The TSH346IDT is a triple single-supply video buffer featuring an internal gain of 6 dB and a 36 MHz low-pass filter for HD video outputs on 75-Ω lines. It operates on a 5 V supply, includes an internal DC level shifter to prevent synchronization tip damage without input capacitors, and provides three matched amplifiers. The device supports AC or DC output coupling and is specified for 150 Ω loads with very low harmonic distortion.

Feature Summary

• Integrates a 6th order 36 MHz filtering stage within each channel
• Includes an internal fixed DC level shifter to protect signal synchronization tips
• Eliminates the need for external input coupling capacitors
• Provides three internally matched 6 dB voltage gain amplifiers

Applications

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

Procurement Notes

Verify component authenticity through authorized STMicroelectronics distributors. Confirm package integrity and pin alignment against SO-8 specifications. Check datasheet revision history for updates. Ensure storage conditions comply with absolute maximum ratings. Validate ordering codes match required temperature ranges.

Selection Notes

Select this component for applications requiring precise impedance matching and high-frequency filtering in single-supply environments. Consider the internal DC shift when designing DAC interfaces. Evaluate thermal resistance values for PCB layout optimization. Verify power supply bypassing requirements to maintain performance standards.

Part Context

This part belongs to the TSH346 series of video buffers designed by STMicroelectronics. It is specifically engineered for high-definition video signal processing tasks. The device integrates multiple functions into a compact plastic package to save board space while maintaining signal integrity across various video formats.

Replacement Considerations

Public confirmed substitute part numbers: None identified.