MAX9505ETE+

Video Amps And Modules Overview

The MAX9505ETE+ is a DirectDrive video amplifier with an integrated reconstruction filter and analog switch, manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single 2.7V to 3.6V supply and features a 6dB voltage gain. The device utilizes an internal charge pump and linear regulator to create a negative supply, enabling DC-coupled output with the black level set to ground. It includes a six-pole Butterworth lowpass filter for signal smoothing and an internal 1.7Ω analog switch for multimedia jack interfacing. The component is specified over an extended temperature range of -40°C to +85°C.

Video Amps And Modules Feature Summary

• DirectDrive technology eliminates large output-coupling capacitors by using an integrated charge pump and linear regulator to drive the sync below ground.
• Internal six-pole Butterworth reconstruction filter smooths DAC steps and provides high attenuation at higher frequencies.
• Integrated 1.7Ω analog switch allows flexible interfacing with 4-pole multimedia jacks for video or microphone inputs.
• Ultra-low shutdown mode reduces supply current to typically 10nA for battery-powered applications.

Video Amps And Modules Applications

• Mobile phones and smartphones
• Space-constrained portable devices
• Low-power audio/video equipment

Video Amps And Modules Procurement Notes

Verify the specific suffix 'ETE+' corresponds to the 16-pin TQFN package when sourcing. Confirm that the component meets the required RoHS compliance standards for your region. Ensure the supplier provides valid traceability documentation. Check for any recent lifecycle status updates as older Maxim products may face obsolescence risks. Validate that the operating temperature range aligns with your environmental specifications.

Video Amps And Modules Selection Notes

Select this component when space constraints prohibit the use of large external coupling capacitors in video output stages. It is suitable for designs requiring direct connection to video DACs without level-shifting issues. Consider its low shutdown current for power-sensitive mobile applications. Ensure the system can accommodate the four 1µF bypass capacitors required for the charge pump operation. Verify that the 6dB gain and bandwidth characteristics meet the standard-definition video requirements.

Video Amps And Modules Part Context

This part belongs to the MAX9505 family of DirectDrive video amplifiers. It integrates functions typically requiring multiple discrete components into a single compact solution. The technology addresses common issues with AC-coupled outputs, such as black level excursion due to picture content variations. It is designed to replace traditional capacitor-based video driver circuits in modern portable electronics.

Video Amps And Modules Replacement Considerations

Check for updated versions within the MAX9505 series or compatible DirectDrive amplifiers from Analog Devices. Verify pin compatibility if substituting with other packages like the QSOP variant. Ensure replacement parts support the same 2.7V to 3.6V supply range and -40°C to +85°C temperature specification.

Video Amps And Modules FAQ

How does the MAX9505 handle the video black level?

It uses DirectDrive technology to set the video black level directly to ground, eliminating the need for large output-coupling capacitors and preventing level shifts caused by varying picture content.

What is the purpose of the internal analog switch?

The internal 1.7Ω analog switch interfaces with a 4-pole multimedia jack, allowing one pole to be configured as a video input, video output, or microphone input via logic control.

How is the negative supply generated for the output stage?

An integrated charge pump inverts the positive supply voltage, which is then filtered by a linear regulator to create a clean negative supply, allowing the output to swing below ground.