THS7353PWRG4

Overview

The THS7353PWRG4 is a low-power, single-supply video buffer fabricated using SiGe BiCom-III technology. It integrates three independent channels with selectable 5th-order Butterworth anti-aliasing filters (9-MHz, 16-MHz, 35-MHz) and a bypass mode offering 150-MHz bandwidth. The device operates on a 2.7-V to 5-V supply, drawing 16.2 mA total quiescent current. Key features include I2C control, a 2:1 input multiplexer, external gain adjustment (0 dB to 14 dB), and rail-to-rail output.

Feature Summary

• Integrates selectable 5th-order Butterworth low-pass filters for SDTV, EDTV, and HDTV signal processing.
• Features a 2:1 input multiplexer allowing selection between AC-coupled sync-tip clamp or DC-coupled bias modes.
• Provides full I2C configuration capability for all channel functions including disable and mute controls.
• Includes an externally controlled gain adjust pin for fine-tuning line driving and cable loss compensation.

Applications

• HDTV video buffering
• PVR/DVDR video buffering
• Projector video buffering
• USB/Portable low power video buffering

Procurement Notes

Verify the G4 suffix indicates compliance with RoHS standards and confirms lead-free manufacturing. Confirm the PW package designation corresponds to the TSSOP-20 housing. Ensure the specific ordering code matches the required transport media, such as tape and reel quantities of 2000 units, to align with production requirements.

Selection Notes

Select this component when designing systems requiring integrated filtering and multiplexing in a single video buffer. The I2C interface allows dynamic reconfiguration of filter cutoff frequencies and input modes without external logic. Consider the low quiescent current for battery-operated applications and the rail-to-rail output for flexible coupling options.

Part Context

This part belongs to the THS7353 family of video amplifiers manufactured by Texas Instruments. It utilizes complementary silicon-germanium (SiGe) BiCom-III process technology to achieve high performance at low power levels. The device serves as a versatile solution for multi-standard video signal conditioning in consumer electronics and professional AV equipment.

Replacement Considerations

The THS7353PW is the non-RoHS compliant equivalent of this component. Verify that any substitute maintains the same TSSOP-20 footprint and electrical characteristics if cross-referencing with other video buffers in the TI portfolio.

FAQ

What are the available filter corner frequencies?

The device offers selectable 5th-order Butterworth filters with corner frequencies of 9 MHz, 16 MHz, and 35 MHz, plus a bypass mode providing approximately 150 MHz bandwidth.

How is the input bias configured?

Input bias can be set via I2C to AC-coupled with sync-tip clamp, AC-coupled with fixed bias, DC-coupled, or DC-coupled with a 250-mV input shift.

What is the maximum supply voltage?

The absolute maximum operating supply voltage is 5.5 V, while the recommended operating range is 2.7 V to 5 V.