Analog Devices Inc./Maxim Integrated MAX9526AEI+

Overview

The MAX9526AEI+ 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 output. It features a 10-bit 54Msps ADC with 4× oversampling, integrated analog anti-aliasing filter, and line-locked PLL generating 27MHz LLC clock. Designed for automotive entertainment and collision avoidance systems, it operates from -40°C to +125°C on a single 1.8V analog/digital supply.

For engineers reviewing the MAX9526AEI+ datasheet, MAX9526AEI+ pinout, MAX9526AEI+ application, or MAX9526AEI+ equivalent, key selection criteria include its automotive temperature rating, dual-input multiplexer with AGC, flexible 10-bit/8-bit BT.656 output formatting, shutdown power (<100µW), and support for both line-locked and async clock modes - all critical for robust in-vehicle video processing.

Technical Context

The MAX9526AEI+ implements a hybrid analog/digital line-locked PLL with programmable bandwidth (180Hz–2000Hz) to generate a jitter-tolerant 27MHz LLC output synchronized to incoming video timing. Its analog front-end integrates DC restoration with current DAC offset correction, analog AGC (3.5dB–12dB gain range), and a 13MHz 3dB analog LPF eliminating external filtering.

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

Key Specifications

Pinout & Package

The MAX9526AEI+ is housed in a 28-pin QSOP package (5.3mm × 10.2mm, 1.0mm height) with gull-wing leads, RoHS-compliant and lead(Pb)-free.

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+ uniquely combines automotive temperature qualification, sub-100µW shutdown, integrated analog anti-aliasing, and hardware-based dual-input activity detection - making it the only option suitable for safety-critical, always-on automotive video systems requiring zero-host intervention.

Availability

The MAX9526AEI+ is available at Aetrix Electronics and suitable for automotive entertainment systems, collision avoidance systems, and security surveillance/CCTV systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX9526AEI+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.

The MAX9526AEI+ belongs to Maxim's automotive video decoder product line, engineered specifically for robust, low-power conversion of legacy composite video signals in safety-critical in-vehicle systems - emphasizing reliability, temperature resilience, and minimal host software dependency.

FAQ

What video standards does the MAX9526AEI+ support?

MAX9526AEI+ 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 itself to the incoming standard without user intervention, leveraging internal sync processing and PLL lock detection. This full-standard coverage ensures interoperability with global broadcast, CCTV, and automotive camera sources.

How does the MAX9526AEI+ handle power management in automotive systems?

MAX9526AEI+ provides three distinct power states: normal operation (~200mW), sleep mode (<5mW with continuous VIN1/VIN2 activity detection), and shutdown (<100µW). In sleep mode, analog sync-tip clamps and slicers remain active to monitor input activity, enabling wake-up without full reinitialization - a critical feature for automotive rear-view or surround-view systems requiring instant-on response after vehicle ignition.

Can the MAX9526AEI+ operate without an external crystal?

Yes, MAX9526AEI+ can accept an external 27MHz or 54MHz CMOS clock directly on the XTAL/OSC pin when XTAL_DIS = 1 is set in register 0x0D. The internal oscillator is bypassed, and the device uses the applied clock for PLL operation. This flexibility allows integration into systems where a precision clock source is already available, reducing bill-of-materials and board space.

What is the function of the NONSTD pin/status in the MAX9526AEI+?

The NONSTD status (bit 6 of Status Register 0x00) indicates detection of nonstandard carrier frequencies - commonly found in VCR playback or poorly aligned analog sources. When asserted, MAX9526AEI+ automatically switches its PLL to asynchronous mode to maintain lock. This prevents video breakup and enables reliable decoding of degraded or non-broadcast-quality signals without manual reconfiguration.

Does the MAX9526AEI+ require external passive components for basic operation?

Yes, MAX9526AEI+ requires external 0.1µF bypass capacitors on VIN1, VIN2, VREF, AVDD, DVDD, and DVDDIO pins per layout guidelines. A 27MHz crystal (or external clock) and 10kΩ pull-up resistors on SDA, SCL, and IRQ are also mandatory. No external analog filtering is needed due to the integrated 13MHz anti-aliasing LPF - significantly simplifying front-end design compared to competing decoders.