Analog Devices Inc./Maxim Integrated MAX9532AUB/V+T

Overview

The MAX9532AUB/V+T from Maxim Integrated is a DirectDrive® video filter amplifier designed for automotive infotainment systems, featuring integrated short-to-battery protection (up to 18V), 4V/V fixed gain, DC-coupled input/output, and an internal 5-pole Butterworth reconstruction filter with ±1dB passband flatness to 9.5MHz.

For engineers reviewing the MAX9532AUB/V+T datasheet, MAX9532AUB/V+T pinout, MAX9532AUB/V+T application, or MAX9532AUB/V+T equivalent, this page delivers verified technical context, validated pin functions, automotive-grade thermal performance (-40°C to +125°C), and real-world design meaning behind key specs including charge-pump noise suppression, sync-tip clamping, and battery-short response timing.

Technical Context

The MAX9532AUB/V+T implements a fully integrated DirectDrive architecture: an internal charge pump (220–660kHz switching) and linear regulator generate a clean negative supply (CPVSS) enabling true ground-referenced black level and sync pulses below ground without external capacitors. Its 5-pole Butterworth lowpass filter ensures ±1dB gain flatness up to 9.5MHz and 42dB attenuation at 27MHz.

Short-to-battery protection operates via a dedicated JACKSENSE input monitoring output connector voltage; detection of >8V triggers internal switch disablement within 10µs, isolating the amplifier from faults up to 18V. The transparent sync-tip clamp supports both AC- and DC-coupled inputs by applying ≤3.3µA clamping current only when needed.

Key Specifications

Pinout & Package

The MAX9532AUB/V+T is housed in a 3mm × 3mm, 10-pin µMAX® package rated for -40°C to +125°C operation, optimized for space-constrained automotive PCB layouts with exposed pad thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar video filter amplifier applications.

Compared with MAX9531AUB/V+T and THS7374IPWPR, the MAX9532AUB/V+T uniquely combines single-supply DirectDrive operation, integrated 9.5MHz reconstruction filtering, and automotive-grade short-to-battery resilience - eliminating four external components and enabling robust, space-efficient video routing in safety-critical automotive zones.

Availability

The MAX9532AUB/V+T is available at Aetrix Electronics and suitable for automotive infotainment systems, rear-view camera modules, and dashboard video displays requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX9532AUB/V+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.

The MAX9532AUB/V+T belongs to Maxim's DirectDrive video amplifier product line, engineered specifically for automotive video signal conditioning where space, reliability, and fault tolerance are critical in harsh electrical environments.

FAQ

What is the primary function of the JACKSENSE pin on the MAX9532AUB/V+T?

The JACKSENSE pin on the MAX9532AUB/V+T monitors the voltage at the video output connector to detect short-to-battery faults. When it senses >8V (±0.7V), it triggers internal switch disablement within 20µs, protecting the MAX9532AUB/V+T from damage during automotive wiring faults. It is not a general-purpose input and must be connected after the back-termination resistor per the datasheet layout guidelines.

Does the MAX9532AUB/V+T require external capacitors for its charge pump?

Yes, the MAX9532AUB/V+T requires two external 1µF ceramic capacitors: one between C1P and C1N (pins 2 and 4) for charge transfer, and another between CPVSS and GND (pin 5) for noise filtering. These are mandatory for DirectDrive operation; omitting them prevents negative supply generation and causes output clipping or failure to drive sync below ground.

Can the MAX9532AUB/V+T accept a 1VP-P input signal?

The MAX9532AUB/V+T is specified for 0.5VP-P full-scale input, but can accept 1VP-P signals with reduced headroom. Per the datasheet, input voltage range is guaranteed to 0.7V at VDD = 3.6V; exceeding this risks clipping or increased distortion. For reliable 1VP-P operation, scale the source impedance (e.g., halve DAC termination resistor) to maintain 0.5VP-P at MAX9532AUB/V+T input.

How does the transparent sync-tip clamp operate on the MAX9532AUB/V+T?

The transparent sync-tip clamp on the MAX9532AUB/V+T activates only when the IN pin voltage falls below ground, applying ≤3.3µA clamping current to restore baseline. With DC-coupled inputs centered above ground (e.g., 150mV black level), the clamp remains inactive - preserving signal integrity. This dual-mode behavior enables seamless integration with both legacy AC-coupled and modern DC-coupled video sources.

Is the MAX9532AUB/V+T pin-compatible with other devices in the MAX953x family?

The MAX9532AUB/V+T shares the same 10-pin µMAX® footprint and pinout with MAX9531AUB/V+T and MAX9533AUB/V+T, enabling drop-in replacement for functional variants. However, MAX9531 lacks short-to-battery protection and requires external negative supply, while MAX9533 adds programmable gain - so electrical compatibility depends on system-level implementation of those features.