Analog Devices Inc./Maxim Integrated MAX9260GCB+T

Overview

MAX9260GCB+T from Maxim Integrated is a gigabit multimedia deserializer for automotive serial links, supporting up to 3.125Gbps over shielded twisted-pair cable, 1280×768 XGA display resolution, 192kHz/32-bit I²S audio, and full-duplex 1Mbps UART control channel. It operates from 3.0V–3.6V AVDD/DVDD and 1.7V–3.6V IOVDD across –40°C to +105°C, housed in a 64-pin TQFP-EP package.

For engineers reviewing the MAX9260GCB+T datasheet, MAX9260GCB+T pinout, MAX9260GCB+T application, or MAX9260GCB+T equivalent, this page delivers verified electrical specs, automotive-grade ESD protection (±10kV contact), spread-spectrum EMI reduction, preemphasis/deemphasis tuning, and AEC-Q100-compliant timing performance for infotainment and camera systems.

Technical Context

The MAX9260GCB+T functions as the deserializer in a paired MAX9259/MAX9260 link, converting high-speed serialized video/audio/control data back to parallel LVCMOS outputs. Its differential IN+/IN− receiver supports 40–90mV peak differential thresholds and 1–1.6V common-mode range, with programmable equalization (EQS) and built-in line-fault detection via LMN0/LMN1 inputs.

It embeds a full-duplex control channel operating at 100kbps–1Mbps, enabling bidirectional UART/I²C communication between host MCU and remote peripherals. The device features spread-spectrum modulation (0.5%–4%), programmable PCLKOUT (6.25–104MHz), and deterministic serializer/deserializer delay (750–2880 bits depending on spread-spectrum state).

Key Specifications

Pinout & Package

MAX9260GCB+T is supplied in a 64-pin TQFP package (10mm × 10mm × 1mm) with exposed pad (EP) connected internally to AGND and externally required to be soldered to the analog ground plane for thermal and noise performance.

Key Features

Applications

Availability

MAX9260GCB+T is available at Aetrix Electronics and suitable for high-resolution automotive navigation, rear-seat infotainment, and megapixel camera systems requiring stable component supply, AEC-Q100 compliance, and long-cable serial link performance.

Supply support for MAX9260GCB+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 applications.

The MAX9259/MAX9260 product line targets high-bandwidth, low-latency, EMI-resilient serial links for automotive video and sensor data transport - optimized for AEC-Q100 reliability and cable-length flexibility.

FAQ

What is the primary function of the MAX9260GCB+T in a serial link system?

The MAX9260GCB+T is a gigabit multimedia deserializer that receives high-speed serialized video, audio, and control data over shielded twisted-pair cable and reconstructs them into parallel LVCMOS outputs (DOUT0–DOUT28), I²S audio signals (SD/SCK/WS), and a pixel clock (PCLKOUT). It pairs exclusively with the MAX9259 serializer and forms the remote end of an AEC-Q100-compliant automotive serial link. Its role is critical for display interfaces and camera systems where space, weight, and EMI are constraints.

Does the MAX9260GCB+T support both 24-bit and 32-bit parallel output modes?

Yes, the MAX9260GCB+T supports both 24-bit and 32-bit parallel output configurations. The BWS (Bus-Width Select) pin determines mode: BWS = low enables 24-bit RGB + sync (DOUT0–DOUT20), while BWS = high enables 32-bit mode using DOUT0–DOUT28 for extended data such as auxiliary camera metadata or dual-view timing. This flexibility allows the same MAX9260GCB+T footprint to serve multiple display resolutions and sensor types without hardware redesign.

How does the MAX9260GCB+T handle electromagnetic interference (EMI) in automotive environments?

The MAX9260GCB+T reduces EMI through programmable spread-spectrum modulation (0.5%–4%) on its serial input path and adjustable preemphasis/deemphasis settings. Spread spectrum dithers the serial clock frequency to lower peak spectral energy, easing EMC compliance. Additionally, its differential CML input (IN+/IN−) with 100Ω termination rejects common-mode noise, and the device meets ISO 10605 (±10kV contact) and IEC 61000-4-2 (±10kV contact) ESD standards - essential for noisy vehicle harnesses.

Can the MAX9260GCB+T operate without an external microcontroller?

No - the MAX9260GCB+T requires configuration and supervision by an external microcontroller or host ECU. Its control interface (RX/SDA, TX/SCL) operates in either I²C master or UART mode to communicate with the host, and pins like ENABLE, BWS, DRS, and EQS must be set via GPIO or resistive dividers. While it supports autostart via the AUTOS pin (on the MAX9259 side), the MAX9260GCB+T itself has no autonomous initialization logic and relies on the host for link setup, fault response, and runtime reconfiguration.

What is the significance of the LMN0 and LMN1 pins on the MAX9260GCB+T?

The LMN0 and LMN1 pins on the MAX9260GCB+T are dedicated line-fault monitor inputs that detect physical layer anomalies on the STP cable - including short-to-battery, short-to-ground, and open-circuit conditions - without requiring external comparators or ADCs. These pins interface directly with the cable's shield and conductors, feeding status into internal fault logic that drives the LFLT (line-fault) output. This capability enables real-time cable health monitoring in mission-critical automotive applications such as ADAS camera links, where undetected cable degradation could compromise safety.