THS7353PW

Overview

The THS7353PW is a low-power, single-supply video buffer fabricated using SiGe BiCom-III technology. It integrates three independent channels with selectable 5th-order Butterworth filters (9-MHz, 16-MHz, 35-MHz) and a bypass mode providing 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, external gain adjustment (0 dB to 14 dB), a 2:1 input multiplexer, and rail-to-rail output stages.

Feature Summary

• Integrates selectable 5th-order Butterworth anti-aliasing filters for SDTV, EDTV, and HDTV signal processing.
• Features a 2:1 input multiplexer allowing flexible selection between multiple video sources per channel.
• Provides full I2C configuration capability for all functions including filter selection, bias modes, and mute control.
• Includes an externally adjustable gain pin enabling fine-tuning for line driving or cable loss compensation.

Applications

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

Procurement Notes

Verify the specific package suffix 'PW' corresponds to the TSSOP-20 tube packaging format as documented in the manufacturer's ordering information. Confirm that the I2C address pins are correctly configured via hardware connections to Vs+ or GND prior to system integration. Ensure thermal management maintains junction temperature below 125°C for optimal reliability.

Selection Notes

Select this component when designing systems requiring integrated filtering and multiplexing within a single video buffer. The availability of distinct corner frequencies allows optimization for specific resolution standards without external components. Consider the low power consumption profile for battery-operated applications where minimizing energy usage is critical.

Part Context

This part belongs to the THS7353 series of low-power video buffers from Texas Instruments. It utilizes complementary silicon-germanium technology to achieve high performance at low voltages. The PW suffix specifically denotes the plastic small-outline thin-shape package variant designed for surface-mount assembly.

Replacement Considerations

THS7353PWG4

FAQ

What is the maximum supply voltage for the THS7353?

The maximum operating supply voltage is 5.5 V.

How is the gain adjusted on each channel?

Gain is controlled via an external pin; shorting it to the output provides 0 dB gain, while adding resistors or capacitors to analog ground increases gain up to 14 dB.