Features and Benefits

  • Pairs with Any GMSL Deserializer
  • HDCP Encryption Enable/Disable Programmable with the Control Channel
  • Control Channel Handles All HDCP Protocol Transactions—Separate Control Bus Not Required
  • HDCP Keys Preprogrammed in Secure Nonvolatile Memory
  • 2.5Gbps Payload Data Rate (3.125Gbps with Overhead)
  • AC-Coupled Serial Link with 8b/10b Line Coding
  • 8.33MHz to 104MHz (3-Channel LVDS) or 6.25MHz to 78MHz (4-Channel LVDS) Pixel Clock
  • 4-Bit to 32-Bit Sample Depth, 8kHz to 192kHz I²S Audio Channel Supports High-Definition Audio
  • Embedded Half-/Full-Duplex Bidirectional Control Channel
    • Base Mode: 9.6kbps to 1Mbps
    • Bypass Mode: 9.6kbps to 1Mbps
  • Two 3-Level Inputs Support 9 Slave Addresses
  • Interrupt Supports Touch-Screen Displays
  • Remote-End I²C Master for Peripherals
  • Programmable Pre/Deemphasis
  • Programmable Spread Spectrum on the Serial Link and Deserializer Outputs Reduce EMI
  • Auto Data-Rate Detection Allows “On-The-Fly” Data-Rate Change
  • Bypassable PLL on LVDS Clock Input for Jitter Attenuation
  • Built-In PRBS Generator for BER Testing of the Serial Link
  • Fault Detection of Serial Link Shorted together, to Ground, to Battery, or Open
  • ISO 10605 and IEC 61000-4-2 ESD Tolerance

Product Details

The MAX9265 gigabit multimedia serial link (GMSL) serializer features an LVDS system interface and high-bandwidth digital content protection (HDCP) encryption for content protection of DVD and Blu-ray™ video and audio data. The serializer pairs with any HDCP GMSL deserializer to form a digital serial link for the transmission of control data and HDCP-encrypted video and audio data. GMSL is an HDCP technology approved by Digital Content Protection (DCP), LLC.

The 3-channel mode serializes three lanes of LVDS data (21 bits), UART control signals, and three audio inputs. The 4-channel mode serializes four lanes of LVDS data (28 bits), UART control signals, three audio inputs, and auxiliary control inputs. The three audio inputs are for I²S audio, supporting a sampling frequency from 8kHz to 192kHz and a sample depth of 4 to 32 bits. The embedded control channel forms a full-duplex differential 9.6kbps to 1Mbps UART link between the serializer and deserializer. An electronic control unit (ECU), or microcontroller (µC), can be located on the serializer side of the link (typical for video display), on the deserializer side of the link (typical for image sensing), or on both sides. The control channel enables ECU/µC control of peripherals on the remote side, such as backlight control, touch screen, and perform HDCP-related operations.

The serial link signaling is AC-coupled CML with 8b/10b coding. For driving longer cables, the serializer has programmable driver pre/deemphasis, and for reduced EMI, has programmable spread spectrum on the serial output. The serial output meets ISO 10605 and IEC 61000-4-2 ESD standards.

The serializer operates with a 1.8V core supply, a 1.8V to 3.3V I/O supply, and a 3.3V LVDS supply. This device is available in a 48-pin TQFP package with an exposed pad and is specified over the
-40°C to +105°C automotive temperature range.


  • High-Resolution Automotive Navigation
  • Megapixel Camera Systems
  • Rear-Seat Infotainment

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.