Analog Devices Inc./Maxim Integrated MAX9276AGTN/V+T

Overview

MAX9276AGTN/V+T from Maxim Integrated is a 3.12Gbps GMSL deserializer for automotive video links, receiving serialized video/audio/control data over 50Ω coax or 100Ω STP and outputting parallel LVCMOS video (up to 104MHz pixel clock), I²S/TDM audio (up to 192kHz/32-bit), and bidirectional control channel (up to 1Mbps). It supports HDCP-free operation, cable equalization for 15m full-speed runs, and operates from -40°C to +105°C in automotive infotainment displays.

For engineers reviewing the MAX9276AGTN/V+T datasheet, MAX9276AGTN/V+T pinout, MAX9276AGTN/V+T application, or MAX9276AGTN/V+T equivalent, key selection criteria include coax/STP input compatibility, 104MHz high-bandwidth mode for 1920×720p/60Hz display, embedded UART/I²C control channel, GPIO/GPI for display power and touch interrupt, and AEC-Q100 qualification for automotive use.

Technical Context

The MAX9276AGTN/V+T implements a GMSL-compliant deserialization pipeline with programmable line equalizer, spread-spectrum clocking on parallel outputs, and HS/VS/DE tracking for precise video timing recovery. Its reverse control channel supports UART-to-UART, UART-to-I²C, and I²C-to-I²C modes with clock-stretch capability.

It integrates a color lookup table (LUT) for gamma correction, built-in PRBS BER tester, and staggered parallel output delay control. The device features dual GPIO ports, dedicated GPI for touch-screen interrupt, and remote/local wake-up from sleep mode - all operating under ±8kV contact / ±15kV air ESD protection per ISO 10605 and IEC 61000-4-2.

Key Specifications

Pinout & Package

The MAX9276AGTN/V+T is housed in a lead-free, 56-pin, 8mm × 8mm TQFN package with exposed thermal pad and 0.5mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar GMSL deserializer applications.

Compared with MAX9276A/V+T, the MAX9276AGTN/V+T adds automotive traceability and screening without altering functionality; versus MAX9280A/V+T, it removes HDCP logic to reduce power, cost, and certification complexity while retaining full GMSL deserialization capability.

Availability

MAX9276AGTN/V+T is available at Aetrix Electronics and suitable for automotive instrument clusters, rear-seat infotainment systems, and surround-view camera receivers requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle support.

Supply support for MAX9276AGTN/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, designs precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications markets.

The MAX9276AGTN/V+T belongs to Maxim's GMSL serializer/deserializer product line, engineered specifically for high-bandwidth, low-latency, EMI-resilient video transport in automotive ADAS and infotainment systems.

FAQ

What is the primary function of the MAX9276AGTN/V+T in an automotive video system?

The MAX9276AGTN/V+T functions as a GMSL deserializer that receives high-speed serialized video, audio, and control data over coax or STP cable and converts it into parallel LVCMOS video (24-bit), I²S/TDM audio, and bidirectional UART/I²C control signals. It serves as the video sink interface in automotive displays and camera receivers, enabling robust, long-cable, low-EMI connectivity between ECUs and peripherals. Its design centers on deterministic timing recovery and automotive-grade reliability.

Does the MAX9276AGTN/V+T support HDCP content protection?

No, the MAX9276AGTN/V+T does not include HDCP encryption capability. It is the non-HDCP variant of the MAX9276A/MAX9280A family. The MAX9280A/V+T is the HDCP-enabled counterpart. The MAX9276AGTN/V+T retains identical deserialization performance, pinout, and interface functionality - the only difference is the absence of the HDCP block, resulting in lower power consumption and no HDCP licensing requirement.

What cable types and maximum lengths are supported by the MAX9276AGTN/V+T at full 3.12Gbps data rate?

The MAX9276AGTN/V+T supports both 50Ω coaxial cable (e.g., FAKRA) and 100Ω shielded twisted-pair (STP) cable. With its programmable line equalizer set to maximum boost (24dB), it reliably achieves full 3.12Gbps operation over up to 15 meters of standard automotive coax. Performance beyond 15m depends on cable quality and equalizer tuning; STP length capability is typically 10–12m at full rate due to higher loss.

How does the MAX9276AGTN/V+T handle audio synchronization and format flexibility?

The MAX9276AGTN/V+T supports L-PCM audio in I²S stereo or 8-channel TDM formats, with sample rates from 32kHz to 192kHz and sample depths up to 32 bits. Audio clock can be derived from either the audio source (e.g., serializer) or sink (e.g., SoC), enabling flexible master/slave configurations. The device also provides an additional MCLK output and supports WS/SCK inversion for timing alignment with diverse audio processors.

Can the MAX9276AGTN/V+T be used in systems requiring functional safety (ISO 26262) compliance?

The MAX9276AGTN/V+T itself is not ASIL-certified, but it is widely deployed in ASIL-B and ASIL-C systems (e.g., digital clusters, rear-view displays) as a safety-related component. Its design includes features supporting functional safety: fail-safe outputs (ERR pin), built-in PRBS self-test, fast lock detection, auto error reset, and robust ESD/EMI immunity. System-level ISO 26262 compliance requires integration with appropriate diagnostics and monitoring - the MAX9276AGTN/V+T provides the necessary hardware primitives for such implementation.