MAX9516ALB+T

Video Amps And Modules Overview

The MAX9516ALB+T is a 1.8V, ultra-low-power DirectDrive video filter amplifier with load detect. It operates from a single 1.7V to 2.625V supply and features an internal fixed voltage gain of 8 V/V. The device amplifies standard-definition video signals, driving a 2VP-P output into a 150Ω load while consuming only 6mW quiescent power. It includes an integrated charge pump and linear regulator to create a negative supply for sync below ground. An internal five-pole Butterworth reconstruction filter provides ±1dB passband flatness up to 7.5MHz. The part supports both DC-coupled and AC-coupled inputs via a transparent sync-tip clamp.

Video Amps And Modules Feature Summary

• DirectDrive technology eliminates large output-coupling capacitors and sets the video black level near ground.
• Integrated video load detection reduces system power by entering active-detect mode when no load is present.
• Internal reconstruction filter smooths DAC steps and attenuates high-frequency spikes.
• Transparent input sync-tip clamp allows AC-coupling of signals with varying DC biases.

Video Amps And Modules Applications

• Digital Still Cameras (DSC)
• Digital Video Cameras (DVC)
• Mobile Phones
• Portable Media Players (PMP)
• Security/CCTV Cameras

Video Amps And Modules Procurement Notes

Verify the specific suffix +T indicates tape and reel packaging upon ordering. Confirm RoHS compliance status through official manufacturer documentation or authorized distributors. Ensure the component matches the 10-pin FDFN package code L1022. Cross-reference the full part number MAX9516ALB+T with current Analog Devices/Maxim Integrated catalogs to confirm availability and revision status before finalizing procurement plans.

Video Amps And Modules Selection Notes

Select this component for portable applications requiring low power consumption and direct drive capabilities without external coupling capacitors. It is suitable for systems operating on a single 1.8V supply where space constraints prohibit large capacitors. The internal gain of 8 V/V makes it appropriate for interfacing directly with video DACs producing 0.25VP-P signals. Consider the load detect feature if dynamic power management is required in battery-operated devices.

Video Amps And Modules Part Context

The MAX9516 represents Maxim’s second-generation DirectDrive video amplifier, succeeding first-generation devices like the MAX9503/MAX9505. It addresses the industry shift toward lower supply voltages by eliminating the need for 3.3V rails. The device integrates a charge pump and linear regulator to provide headroom for driving video signals below ground, enabling compact designs in mobile and consumer electronics.

Video Amps And Modules Replacement Considerations

First-generation alternatives include the MAX9503 and MAX9505, which typically operate at 3.3V and offer lower voltage gain. When replacing these older parts, ensure the new design accommodates the 1.8V supply requirement and the higher internal gain of 8 V/V. Verify that the PCB layout supports the FDFN-10 package footprint and that external components match the recommended values for the charge pump and bypass capacitors.

Video Amps And Modules FAQ

How does the MAX9516 handle video loads when none are connected?

The device enters an active-detect mode every 128ms to check for a load. If no load is detected, it consumes only 31μW, significantly reducing overall system power consumption compared to continuous operation.

What is the purpose of the transparent sync-tip clamp?

The transparent sync-tip clamp allows AC-coupling of input signals with different DC biases. It automatically clamps the input signal to ground during AC coupling to prevent drift outside the input range, ensuring stable video black levels.

Can the MAX9516 be used as an anti-alias filter?

Yes, the internal reconstruction filter provides anti-alias filtering and buffering before an analog-to-digital converter, such as in NTSC/PAL video decoders, smoothing DAC output steps and reducing high-frequency noise.