Analog Devices Inc./Maxim Integrated MAX9264GCB/V+

Overview

MAX9264GCB/V+ from Maxim Integrated is an HDCP-enabled GMSL deserializer for automotive infotainment and camera links, supporting up to 104MHz pixel clock, 3.12Gbps serial-bit rate, and 192kHz/32-bit I2S audio. It operates from 3.3V core supply, features programmable equalization, and delivers encrypted video/audio over STP cable up to 15m in high-EMI vehicle environments.

For engineers reviewing the MAX9264GCB/V+ datasheet, MAX9264GCB/V+ pinout, MAX9264GCB/V+ application, or MAX9264GCB/V+ equivalent, this page provides verified functional role, validated pin-level circuit roles, confirmed automotive-grade thermal and ESD specs (-40°C to +105°C, ISO 10605 ±10kV contact), and real-world alternative selection guidance for HDCP-GMSL system design.

Technical Context

The MAX9264GCB/V+ implements a CML-based serial link receiver with embedded reverse control channel (UART/I2C) operating at 9.6kbps–1Mbps, enabling bidirectional communication with its paired serializer (e.g., MAX9263). Its deterministic jitter is ≤0.15UI at 3.125Gbps, and it supports spread-spectrum modulation (0%, 2%, 4%) to reduce EMI.

It integrates line-fault detection on LMN0/LMN1 inputs, programmable equalization for cable loss compensation, and dual-mode parallel output (24-/32-bit) with configurable PCLKOUT duty cycle (40–60%). The device uses separate AGND/DGND/IOGND domains and requires exposed-pad thermal connection to AGND per JEDEC JESD51-7.

Key Specifications

Pinout & Package

MAX9264GCB/V+ is housed in a 64-pin TQFP package with exposed pad (EP), requiring solder connection of EP to AGND for thermal and electrical integrity per JEDEC JESD51-7. Package thermal resistance is 31.9°C/W (junction-to-ambient).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX9274GCB/V+, MAX9264GCB/V+ offers lower power and integrated audio but limits resolution to XGA/dual-WVGA; versus DS90UB954TRGCRQ1, it adds mandatory HDCP 1.4 and higher ESD robustness at the cost of TI toolchain dependency.

Availability

MAX9264GCB/V+ is available at Aetrix Electronics and suitable for high-resolution automotive navigation, rear-seat infotainment, and megapixel camera systems requiring stable component supply across extended temperature and ESD stress conditions.

Supply support for MAX9264GCB/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 MAX9264GCB/V+ belongs to Maxim's GMSL chipset family, engineered specifically for high-bandwidth, HDCP-secured video and audio transport in automotive ADAS and infotainment systems.

FAQ

What is the maximum cable length supported by MAX9264GCB/V+ at full 3.12Gbps data rate?

The MAX9264GCB/V+ supports up to 15m of shielded twisted-pair (STP) cable at full 3.12Gbps serial-bit rate when using optimal preemphasis/equalization settings and 104MHz pixel clock. This is validated per BER <10⁻⁹ with spread spectrum disabled and EQS configured for 10.7dB gain. Longer runs require derating pixel clock or using dual-link configurations.

Does MAX9264GCB/V+ require an external crystal or oscillator?

No, the MAX9264GCB/V+ does not require an external crystal or oscillator. It recovers the clock directly from the incoming CML serial stream using an integrated PLL. The device outputs a clean, low-jitter PCLKOUT derived from the recovered clock, eliminating need for external timing components in typical GMSL link implementations.

Can MAX9264GCB/V+ operate without HDCP enabled?

Yes, the MAX9264GCB/V+ functions as a standard GMSL deserializer even when HDCP is disabled. Video and audio data pass through unencrypted, and all timing, control, and equalization features remain fully operational. HDCP activation is controlled by the serializer (e.g., MAX9263) and requires proper key exchange - disabling it simplifies testing and non-secure use cases.

What is the purpose of the LMN0 and LMN1 pins on MAX9264GCB/V+?

The LMN0 and LMN1 pins on MAX9264GCB/V+ are line-fault monitor inputs that detect cable shorts-to-ground, opens, or shorts-to-battery conditions on the IN+/IN- differential pair. They provide diagnostic feedback to the system microcontroller, enabling fail-safe behavior such as display blanking or error logging when physical layer faults occur in automotive harnesses.

How does the spread-spectrum feature affect EMI performance of MAX9264GCB/V+?

The spread-spectrum feature on MAX9264GCB/V+ reduces peak radiated emissions by modulating the serial clock frequency over a defined range (0%, 2%, or 4% deviation). Measured output power spectra show up to 10dB reduction in fundamental harmonic peaks, helping MAX9264GCB/V+-based modules meet stringent CISPR 25 Class 5 automotive EMI limits without added shielding or filtering.