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Analog Devices Inc./Maxim Integrated MAX9279GTN+
- Part No.:
- MAX9279GTN+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Serializers, Deserializers
- Package:
- -
- Datasheet:
-
MAX9279GTN+.pdf
- Description:
- IC INTEGRATED CIRCUIT
- Quantity:
- Payment:
- Shipping:
Inventory:1,230
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Product details
Overview
The MAX9279GTN+ from Maxim Integrated is a 3.12Gbps GMSL serializer with HDCP content protection, parallel LVCMOS inputs, and programmable CML serial output for 50Ω coax or 100Ω STP cable drive. It supports up to 192kHz/32-bit audio in TDM mode, 104MHz pixel clock for 1920×720p/60Hz display, and operates from -40°C to +105°C - deployed in automotive rear-seat infotainment and megapixel camera systems.
For engineers reviewing the MAX9279GTN+ datasheet, MAX9279GTN+ pinout, MAX9279GTN+ application, or MAX9279GTN+ equivalent, key selection criteria include HDCP-enabled video serialization over coax/STP, embedded UART/I2C control channel (up to 1Mbps), programmable pre/deemphasis for 15m full-speed cable reach, spread-spectrum EMI reduction, and GPO support for touch-screen interrupt signaling.
Technical Context
The MAX9279GTN+ implements a GMSL link layer with bidirectional control channel (UART-UART, UART-I2C, I2C-I2C modes) enabling real-time register access to serializer, deserializer, and peripherals independent of video timing. Its CML transmitter supports dual-cable-impedance programming (50Ω coax / 100Ω STP) and includes built-in PRBS generator for BER testing.
HDCP 1.4 encryption is hardware-accelerated and managed via dedicated registers; authentication follows strict protocol sequencing with link integrity checks every 128 frames post-encryption. The device features high-immunity reverse control channel mode, programmable spread-spectrum modulation (±0.25% to ±1.5%), and bypassable input PLL for jitter attenuation on PCLKIN.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial Bit Rate | 3.12Gbps - enables uncompressed HD video transport (e.g., 1920×720p/60Hz with 24-bit color) over single coax or STP cable. |
| Pixel Clock Range | 6.25MHz to 104MHz - supports scalable resolution and frame rate configurations including high-bandwidth mode. |
| Audio Support | L-PCM I2S stereo or 8-channel TDM up to 192kHz/32-bit - delivers 7.1-channel HD audio synchronized with video stream. |
| Control Channel Speed | 9.6kbps to 1Mbps - allows robust bidirectional communication for remote register programming and HDCP management. |
| Operating Temperature | -40°C to +105°C - qualified for under-hood and dashboard-mounted automotive electronics. |
| ESD Protection | ±8kV contact / ±15kV air per ISO 10605 and IEC 61000-4-2 - ensures reliability in harsh vehicle environments. |
| Supply Voltages | Core: 1.7V–1.9V; I/O: 1.7V–3.6V - enables flexible power domain partitioning in mixed-voltage systems. |
Pinout & Package
The MAX9279GTN+ is housed in a lead-free, 56-pin, 8mm × 8mm TQFN package with exposed pad and 0.5mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DIN[23:0] | Parallel video/data input | 24-bit LVCMOS bus accepting RGB/YUV video or generic parallel data aligned to PCLKIN. |
| PCLKIN | Pixel clock input | Synchronizes parallel data capture; supports spread-spectrum tracking for jitter reduction. |
| OUT+, OUT- | CML serial output | Differential CML driver configurable for 100–400mVpp (STP) or 100–500mV (coax SE) amplitude. |
| GPO | General-purpose output | Open-drain or push-pull output used for touch-screen controller interrupt signaling or system wake-up. |
| SD, SCK, WS | I2S audio interface | Supports stereo or multi-channel TDM audio input with programmable sample depth and rate. |
| CONF[3:0] | Configuration strap inputs | Three-level logic pins setting startup mode, reverse control channel behavior, and HDCP enable state at power-on. |
Key Features
| Feature | Design Value |
|---|---|
| HDCP 1.4 Encryption Engine | Hardware-accelerated content protection compliant with automotive infotainment security requirements; requires no external crypto processor. |
| Programmable Pre/Deemphasis | Compensates for high-frequency loss in long cables (up to 15m at 3.12Gbps), maintaining signal integrity without external equalization. |
| Embedded Control Channel | UART/I2C bidirectional link operating up to 1Mbps enables real-time configuration of remote devices and HDCP state management. |
| Spread-Spectrum Modulation | Reduces peak EMI by spreading serial output spectrum; configurable modulation depth (±0.25% to ±1.5%) and frequency. |
| Built-in PRBS Generator | Enables in-system bit-error-rate testing of the entire GMSL link without external test equipment. |
Applications
| High-Resolution Automotive Navigation | Rear-Seat Infotainment |
|---|---|
Use Scenario: Central display unit transmitting navigation UI and map data to head-up or instrument cluster displays via coax cable. IC Role / Device Role / Timing Role: Serializer converting parallel graphics engine output into serialized GMSL stream with HDCP-protected video payload. Use Value: Enables low-latency, noise-immune transmission across vehicle chassis while meeting OEM cybersecurity mandates. | Use Scenario: Seatback-mounted tablet receiving HD video and multi-channel audio from media head unit through STP harness. IC Role / Device Role / Timing Role: GMSL serializer embedding audio/video streams and supporting touch-interrupt signaling via GPO to host MCU. Use Value: Eliminates bulky ribbon cables; supports simultaneous 1080p video + 7.1 audio over single 100Ω STP pair. |
| Megapixel Camera Systems | ADAS Vision Processing |
Use Scenario: Front-facing 5MP camera module sending raw image data to domain controller using FAKRA-coax interface. IC Role / Device Role / Timing Role: Parallel-to-serial converter accepting MIPI CSI-2 bridge output or direct sensor parallel bus, driving coax with pre-emphasis. Use Value: Achieves >3Gbps bandwidth required for 25fps 5MP Bayer data with deterministic latency and ESD-hardened physical layer. | Use Scenario: Surround-view system aggregating four camera feeds into central ADAS ECU using daisy-chained GMSL links. IC Role / Device Role / Timing Role: Serializer providing synchronized frame start (HS/VS/DE) signals and supporting repeater network topology with dual µC control. Use Value: Enables time-aligned multi-camera capture and HDCP-secured video handoff between ECUs without frame buffer bottlenecks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GMSL serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9275GTN+ | No HDCP engine; otherwise pin-, register-, and functional-compatible with MAX9279GTN+. | Used where content protection is not required (e.g., non-infotainment vision systems). | Select MAX9275GTN+ when HDCP is unnecessary to reduce BOM cost and avoid HDCP licensing overhead. |
| DS90UB953TRGCR | Fully compatible FPD-Link III serializer; different protocol stack, no native HDCP, requires external HDCP controller. | Deployed in TI-based ADAS platforms; lacks integrated HDCP but offers broader ecosystem tooling. | Choose DS90UB953TRGCR only if migrating from existing FPD-Link III infrastructure; MAX9279GTN+ provides superior integration for HDCP-critical infotainment. |
Compared with MAX9275GTN+, the MAX9279GTN+ adds hardware HDCP 1.4 with zero software overhead and identical pinout; versus DS90UB953TRGCR, it delivers native content protection, higher ESD rating (±15kV air), and tighter automotive temperature range compliance.
Availability
The MAX9279GTN+ is available at Aetrix Electronics and suitable for high-resolution automotive navigation, rear-seat infotainment, and megapixel camera systems requiring stable component supply, long-cable signal integrity, and certified content protection.
Supply support for MAX9279GTN+ 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 MAX9279GTN+ belongs to Maxim's GMSL serializer product line, engineered specifically for high-bandwidth, EMI-resilient, and HDCP-secured video transport in automotive ADAS and infotainment systems.
FAQ
What is the primary function of the MAX9279GTN+ in an automotive video system?
The MAX9279GTN+ functions as a high-speed GMSL serializer that converts parallel video/audio data into a robust serial stream for transmission over coax or STP cables. It integrates HDCP 1.4 encryption, making it essential for secure infotainment displays and camera feeds where content protection is mandated. Its design ensures deterministic latency, ESD resilience, and compatibility with automotive-grade temperature and EMC requirements - all critical for reliable operation in MAX9279GTN+ deployments.
Does the MAX9279GTN+ support both coaxial and shielded twisted pair (STP) cable interfaces?
Yes, the MAX9279GTN+ supports both 50Ω coaxial and 100Ω STP cable interfaces via programmable CML output drive strength and amplitude. It delivers 100–500mV single-ended output for coax (e.g., FAKRA connectors) and 100–400mV differential output for STP. This dual-cable flexibility allows system architects to select cost-optimized cabling without redesigning the serializer interface - a key advantage in MAX9279GTN+ automotive implementations.
How does the embedded control channel in the MAX9279GTN+ operate?
The MAX9279GTN+ features an embedded bidirectional control channel supporting UART-UART, UART-I2C, and I2C-I2C modes at speeds up to 1Mbps. It enables a local microcontroller to program registers in the MAX9279GTN+ itself, the remote deserializer, and attached peripherals - all independently of video timing. This capability is vital for dynamic HDCP authentication, fault reporting, and runtime reconfiguration, ensuring seamless operation across the full lifecycle of the MAX9279GTN+ link.
What audio formats and sample rates does the MAX9279GTN+ support?
The MAX9279GTN+ supports L-PCM I2S stereo and up to eight channels in TDM mode, with sample rates from 32kHz to 192kHz and sample depths up to 32 bits. It handles both padded and unpadded TDM formats and accommodates common WS/SCK phase relationships. This audio capability allows the MAX9279GTN+ to carry full 7.1-channel HD audio alongside video - eliminating the need for separate audio buses and simplifying wiring harnesses in premium automotive infotainment systems.
Is the MAX9279GTN+ pin-compatible with other devices in the MAX9275/MAX9279 family?
Yes, the MAX9279GTN+ is fully pin-compatible and register-compatible with the MAX9275GTN+. The only functional difference is the inclusion of HDCP 1.4 encryption logic in the MAX9279GTN+, which is disabled by default and activated only when required. This compatibility allows drop-in replacement in existing designs upgrading to HDCP-compliant architectures - a critical feature for maintaining design reuse and minimizing validation effort in MAX9279GTN+ adoption.
MAX9279GTN+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Data Rate:
- -
- Input Type:
- -
- Output Type:
- -
- Number of Inputs:
- -
- Number of Outputs:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
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MAX9279GTN+ FAQ
1.How can I place an order for MAX9279GTN+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9279GTN+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX9279GTN+ reliable?
The price and inventory of MAX9279GTN+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9279GTN+ is usually 5 days.
3.What payment methods are accepted for MAX9279GTN+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9279GTN+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9279GTN+?
MAX9279GTN+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9279GTN+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX9279GTN+?
For technical support, including MAX9279GTN+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9279GTN+ requirements.
6.How does Aetrix verify that MAX9279GTN+ is sourced from the original manufacturer or authorized distributors?
All MAX9279GTN+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX9279GTN+ meets industry standards.
7.What is the process for return or replacement of MAX9279GTN+?
All MAX9279GTN+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9279GTN+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX9279GTN+ part is unused and in its original packaging.
Return procedure for MAX9279GTN+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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