Analog Devices Inc./Maxim Integrated MAX9526AEI/V+

Overview

The MAX9526AEI/V+ from Maxim Integrated is a low-power, automotive-grade NTSC/PAL video decoder IC that converts composite video (NTSC M/J/4.43, PAL B/G/H/I/D/M/N/60) into 8-bit or 10-bit ITU-R BT.656 YCbCr component video. It features a 10-bit 54MHz ADC with 4× oversampling, integrated analog anti-aliasing filter, DC restoration with offset correction, and automatic gain control. Designed for collision avoidance and automotive entertainment systems, it operates across –40°C to +125°C on a single 1.8V analog/digital supply and configurable 1.7V–3.45V I/O supply.

For engineers reviewing the MAX9526AEI/V+ datasheet, MAX9526AEI/V+ pinout, MAX9526AEI/V+ application, or MAX9526AEI/V+ equivalent, this page delivers verified technical context, automotive-qualified package mapping (28-pin QSOP), real-world timing behavior (line-locked PLL, <160ns LLC jitter), power modes (<100µW shutdown), and validated alternatives for video decoding in safety-critical embedded vision systems.

Technical Context

The MAX9526AEI/V+ implements a hybrid analog/digital line-locked PLL that generates a 27MHz LLC output synchronized to incoming video horizontal line rate, supporting ±5% line-length variation and locking to signals with ≤160ns peak jitter. Its analog front-end integrates a 13MHz 3dB anti-aliasing LPF, activity-detect 2:1 input multiplexer, and DC restoration DAC that sets ADC sync level to code 32 (decimal) via sink/source current control.

Digital processing includes a 5-line adaptive comb filter for cross-chrominance/luminance artifact reduction, programmable PLL bandwidth (180Hz–2000Hz), and flexible output formatting: 10-bit BT.656 with embedded TRS or 8-bit parallel with separate HS/VS. All register configuration occurs over I²C using only 16 user-programmable registers.

Key Specifications

Pinout & Package

MAX9526AEI/V+ is housed in a 28-pin QSOP (Quad Small Outline Package) with exposed thermal pad not present - distinct from the 32-pin TQFN-EP variant. Pin functions are electrically identical to the MAX9526AEI+ variant per Maxim's ordering table.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NTSC/PAL video decoding applications.

Compared with ADV7180BCPZ and TVP5150AM1IPBS, the MAX9526AEI/V+ uniquely combines AEC-Q100 qualification, integrated analog filtering, sub-5mW sleep mode, and automatic input standard detection - making it the only drop-in solution for next-generation automotive vision ECUs requiring zero external analog components and guaranteed operation at 125°C.

Availability

MAX9526AEI/V+ is available at Aetrix Electronics and suitable for automotive rear-view camera systems, ADAS collision avoidance modules, and infotainment head units requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX9526AEI/V+ 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) designs precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.

The MAX9526AEI/V+ belongs to Maxim's automotive video decoder product line, engineered specifically for robust, low-power conversion of analog composite video in safety-critical driver-assistance systems.

FAQ

What video standards does the MAX9526AEI/V+ support?

The MAX9526AEI/V+ supports all major NTSC and PAL variants: NTSC M, NTSC J, NTSC 4.43, PAL B/G/H/I/D, PAL M, PAL N, and PAL 60. It automatically detects and configures for the incoming standard at power-up without host software intervention, enabling seamless integration across global automotive markets where multiple broadcast formats coexist.

Does the MAX9526AEI/V+ require external analog filtering?

No. The MAX9526AEI/V+ integrates a high-performance analog anti-aliasing lowpass filter with 13MHz 3dB bandwidth and >36dB stopband attenuation at 53MHz. This eliminates the need for external RC filters on VIN1/VIN2, reducing PCB area, BOM cost, and design validation effort while maintaining full compliance with ITU-R BT.656 timing and signal integrity requirements.

How does the MAX9526AEI/V+ handle nonstandard video inputs like VCR playback?

The MAX9526AEI/V+ monitors the NONSTD status bit (Register 0x00) to detect nonstandard carrier frequencies. Upon detection, it automatically switches its PLL to asynchronous mode - using the crystal oscillator instead of line-lock - and engages an adaptive poly-phase filter to correct timing errors. This preserves video stability even with degraded or time-base-corrected analog sources.

What is the function of the IRQ pin on the MAX9526AEI/V+?

The IRQ pin on the MAX9526AEI/V+ is an open-drain hardware interrupt output that asserts low when any bit in the Status Register (0x00) changes state - such as loss of horizontal lock (HLOCK = 0), detection of nonstandard video (NONSTD = 1), or activity on VIN2. It requires a 10kΩ pull-up resistor to DVDDIO and enables event-driven host response without polling.

Can the MAX9526AEI/V+ operate with a 3.3V I/O supply while using 1.8V core supplies?

Yes. The MAX9526AEI/V+ accepts a separate DVDDIO supply ranging from +1.7V to +3.45V, independent of its 1.8V AVDD/DVDD core rails. This allows direct connection to 3.3V logic families (e.g., ARM Cortex-A series SoCs) without level-shifting circuitry, simplifying interface design and improving signal integrity in high-speed digital video paths.