Analog Devices Inc./Maxim Integrated MAX9526AEI/V+T

Overview

The MAX9526AEI/V+T from Maxim Integrated is a low-power, automotive-grade NTSC/PAL video decoder IC that converts composite analog 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 output. It features a 10-bit 54Msps ADC with 4× oversampling, integrated analog anti-aliasing filter, and line-locked PLL generating 27MHz LLC output. Designed for automotive entertainment and ADAS vision systems, it operates across –40°C to +125°C with <100µW shutdown current.

For engineers reviewing the MAX9526AEI/V+T datasheet, MAX9526AEI/V+T pinout, MAX9526AEI/V+T application, or MAX9526AEI/V+T equivalent, key selection criteria include its dual-input auto-select mux, DC restoration with offset correction, flexible 1.7V–3.45V I/O supply, 28-pin QSOP automotive package, and support for both line-locked and async clock modes - critical for robust decoding in vibration-prone vehicle environments.

Technical Context

The MAX9526AEI/V+T implements a hybrid analog/digital line-locked PLL architecture that synchronizes the 54MHz sample clock and 27MHz LLC output directly to incoming video horizontal timing, tolerating up to ±5% line-length variation and 160ns peak jitter. Its analog front-end integrates DC restoration via programmable current DAC, analog AGC with 16-step gain control (3.5dB–12dB), and a 13MHz 3dB analog LPF eliminating external filtering.

Digital processing includes a 5-line adaptive comb filter for cross-chrominance/luminance artifact suppression, digital anti-aliasing filtering (≥45dB stopband attenuation >9MHz), and configurable output formatting - 10-bit BT.656 with embedded TRS or 8-bit with separate HS/VS - all managed via 16 I²C registers.

Key Specifications

Pinout & Package

MAX9526AEI/V+T is housed in a 28-pin QSOP (5.3mm × 10.2mm, 0.65mm pitch) with exposed thermal pad not present - consistent with the /V+ (automotive QSOP) ordering variant. Pin functions are validated per Maxim's official MAX9526 datasheet Rev 3 (2011).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADV7180BCPZ and TVP5150AM1IPBS, the MAX9526AEI/V+T uniquely integrates analog anti-aliasing filtering and automotive-grade thermal performance in a compact QSOP, reducing design risk and validation effort for automotive vision OEMs targeting AEC-Q100 compliance.

Availability

MAX9526AEI/V+T is available at Aetrix Electronics and suitable for automotive entertainment systems, collision avoidance vision modules, and commercial fleet DVR systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX9526AEI/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 demanding industrial and automotive applications.

The MAX9526 belongs to Maxim's automotive video decoder product line, engineered specifically for robust, low-power conversion of legacy composite video sources in safety-critical driver-assistance and infotainment systems.

FAQ

What video standards does the MAX9526AEI/V+T support?

The MAX9526AEI/V+T 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 without host intervention. This full standard coverage is confirmed in the device's General Description and Features sections, and applies specifically to the MAX9526AEI/V+T variant as an automotive-qualified member of the MAX9526 family.

Does the MAX9526AEI/V+T require external analog filtering?

No, the MAX9526AEI/V+T does not require external analog filtering. It integrates a high-performance analog anti-aliasing lowpass filter with a 13MHz 3dB bandwidth and ≥36dB attenuation at 53MHz. This is explicitly stated in the General Description and Electrical Characteristics, and eliminates the need for external RC filters - a key differentiator confirmed for the MAX9526AEI/V+T in its functional diagram and AFE block description.

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

The IRQ pin on the MAX9526AEI/V+T is an open-drain hardware interrupt output that asserts low when status register bits change - including detection of nonstandard video (NONSTD), loss of horizontal lock (HLOCK), or AGC saturation. It enables immediate host processor response without polling. This behavior is defined in the Pin Description table and Detailed Description section, and applies directly to the MAX9526AEI/V+T's 28-pin QSOP implementation.

Can the MAX9526AEI/V+T operate with a single 1.8V supply?

Yes, the MAX9526AEI/V+T operates with a single 1.8V supply for both AVDD and DVDD rails. Its analog and digital core supplies are specified at 1.7V–1.9V, while the DVDDIO I/O rail accepts +1.7V to +3.45V independently - enabling direct interfacing to 1.8V or 3.3V processors. This dual-supply flexibility is documented in the Absolute Maximum Ratings and Electrical Characteristics tables for the MAX9526AEI/V+T.

What package type is used for the MAX9526AEI/V+T?

The MAX9526AEI/V+T uses a 28-pin QSOP (Quad Small Outline Package) with dimensions 5.3mm × 10.2mm and 0.65mm lead pitch. This is confirmed in the Ordering Information table, where "MAX9526AEI/V+" is explicitly listed with "28 QSOP" packaging. The /V suffix denotes automotive qualification, and the + indicates RoHS-compliance - both applicable to this specific MAX9526AEI/V+T orderable part.