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Gigabit Multimedia Deserializer with Spread Spectrum and Full-Duplex Control Channel

Single-Link Deserializer with Integrated Control Channel Is Ideal for Digital Video Applications

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Pairs with Any GMSL Serializer
  • 2.5Gbps Payload Rate, AC-Coupled Serial Link with 8b/10b Line Coding
  • 24-Bit or 32-Bit Programmable Parallel Output Bus Supports Up to XGA (1280 x 768) or Dual-View WVGA (2 x 854 x 480) Panels with 18-Bit or 24-Bit Color
  • 8.33MHz to 104MHz (24-Bit Bus) or 6.25MHz to 78MHz (32-Bit Bus) Parallel Data Rate
  • Support Two/Three 10-Bit Camera Links at 104MHz/78MHz Maximum Pixel Clock
  • 4-Bit to 32-Bit Word Length, 8kHz to 192kHz I²S Audio Channel Supports High-Definition Audio
  • Embedded Half-/Full-Duplex Bidirectional Control Channel (100kbps to 1Mbps)
  • Separate Interrupt Signal Supports Touch-Screen Functions for Display Panels
  • Remote-End I²C Master for Peripherals
  • Line Equalizer Extends Link Length
  • Programmable Spread Spectrum on the Parallel Data Outputs Reduce EMI
  • Does Not Require an External Clock
  • Auto Data-Rate Detection Allows "On-The-Fly" Data-Rate Change
  • Built-In PRBS Checker for BER Testing
  • ISO 10605 and IEC 61000-4-2 ESD Protection
  • -40°C to +105°C Operating Temperature Range
  • Patent Pending

Applications/Uses

  • Automotive Navigation, Infotainment, and Image-Sensing Systems
  • High-Speed Serial-Data Transmission for Display
  • High-Speed Serial-Data Transmission for Image Sensing

Description

The MAX9270 deserializer uses Maxim's gigabit multimedia serial link (GMSL) technology. The device functions the same as the MAX9260 deserializer without an output enable (active-low ENABLE) pin. Outputs are enabled or disabled by a register bit. The deserializer pairs with any GMSL serializer to form a complete digital serial link for joint transmission of high-speed video, audio, and control data.

The deserializer accepts a maximum serial payload data rate of 2.5Gbps for a 15m shielded twisted-pair (STP) cable. The 24-bit or 32-bit width parallel interface operates up to a maximum bus clock of 104MHz or 78MHz, respectively. This serial link supports display panels from QVGA (320 x 240) up to XGA (1280 × 768), or dual-view WVGA (2 × 854 x 480).

The 24-bit or 32-bit mode handles 21 or 29 bits of data, along with an I²S input, supporting 4- to 32-bit audio word lengths and an 8kHz to 192kHz sample rate. The embedded control channel forms a full-duplex, differential 100kbps to 1Mbps UART link between the serializer and deserializer. The host electronic control unit (ECU) or microcontroller (µC) resides either on the serializer (for video display) or the deserializer (for image sensing). In addition, the control channel enables ECU/µC control of peripherals in the remote side of the serial link through I²C (base mode) or a user-defined full-duplex UART format (bypass mode).

The channel equalizer extends the link length and enhances the link reliability. Spread spectrum is available to reduce EMI on the parallel output data signals. The differential link complies with the ISO 10605 and IEC 61000-4-2 ESD-protection standards.

This device uses a 3.3V core supply and a 1.8V to 3.3V I/O supply. The device is available in a 56-pin TQFN package (8mm x 8mm x 0.75mm) with an exposed pad. Electrical performance is guaranteed over the -40°C to +105°C automotive temperature range.

Simplified Block Diagram

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.