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Analog Devices Inc./Maxim Integrated MAX9280AGTN+
- Part No.:
- MAX9280AGTN+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Serializers, Deserializers
- Package:
- 56-WFQFN Exposed Pad
- Datasheet:
-
MAX9280AGTN+.pdf
- Description:
- IC DESERIALIZER GMSL 56TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,147
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Product details
Overview
MAX9280AGTN+ from Maxim Integrated is a 3.12Gbps GMSL deserializer for automotive video links, receiving serialized video/audio/control data over 50Ω coax or 100Ω STP cable and outputting parallel LVCMOS video (up to 104MHz pixel clock), I²S/TDM audio (up to 192kHz/32-bit), and bidirectional UART/I²C control channel (up to 1Mbps). It integrates HDCP 1.4 content protection, programmable cable equalization, spread-spectrum clocking, and GPIO/GPI for display power-up and touch-interrupt handling - deployed in high-resolution automotive navigation displays.
For engineers reviewing the MAX9280AGTN+ datasheet, MAX9280AGTN+ pinout, MAX9280AGTN+ application, or MAX9280AGTN+ equivalent, this page delivers verified technical context, exact pin functions, real-world automotive use cases, and validated alternative parts - all grounded in Maxim's official MAX9276A/MAX9280A datasheet Rev 3 (10/2019) and package documentation.
Technical Context
The MAX9280AGTN+ implements a GMSL-compliant deserialization architecture with dual-mode serial input (coax or STP), embedded reverse control channel supporting UART-to-UART, UART-to-I²C, and I²C-to-I²C modes with clock-stretch capability, and configurable high-bandwidth mode enabling 1920×720p/60Hz RGB888 output. Its HDCP engine operates independently of video timing and supports repeater authentication protocols.
It features a dedicated line equalizer with programmable boost levels (0–18dB), staggered parallel outputs to reduce simultaneous switching noise, and a continuously sampled GPI input optimized for touch-screen controller interrupt signaling. The device supports PRBS-based BER testing and auto-error reset on link loss-of-sync detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial Data Rate | Up to 3.12Gbps - enables transmission of HD/UXGA video over single coax cable without multiplexing. |
| Pixel Clock Output | 6.25MHz to 104MHz - supports 1920×720p/60Hz with 24-bit color in high-bandwidth mode. |
| Audio Support | L-PCM I²S stereo or 8-channel TDM up to 192kHz sample rate and 32-bit depth - meets 7.1 HD audio requirements. |
| Control Channel Speed | 9.6kbps to 1Mbps - allows real-time register programming of serializer, deserializer, and peripherals independent of video frame timing. |
| Operating Temperature | −40°C to +105°C - qualified for under-hood and display-module placement in automotive ECUs. |
| ESD Protection | ±8kV contact / ±15kV air per ISO 10605 and IEC 61000-4-2 - ensures robustness in noisy vehicle environments. |
| Supply Voltage | Core: 3.0V–3.6V; I/O: 1.7V–3.6V - enables flexible power domain partitioning with common automotive LDOs. |
Pinout & Package
The MAX9280AGTN+ is housed in a lead-free, 56-pin, 8mm × 8mm TQFN package with exposed thermal pad and 0.5mm pitch - optimized for automotive PCB thermal management and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+ / IN− | Differential Serial Input | Accepts GMSL-encoded data from coax or STP; supports automatic cable-type detection via CABLE_TYPE pin. |
| PCLKOUT | Parallel Pixel Clock Output | LVCMOS clock synchronized to deserialized video data; frequency programmable from 6.25MHz to 104MHz. |
| DATA[23:0] | Parallel Video Data Output | 24-bit LVCMOS bus carrying RGB/YUV video; supports staggered output timing to minimize ground bounce. |
| AUD_MCLK / AUD_WS / AUD_SCK / AUD_SD | Audio Interface Outputs | Generate I²S/TDM timing and data for external audio codec; MCLK sourced from internal PLL or external crystal. |
| GPIO0 / GPIO1 | General-Purpose Output | Configurable as open-drain or push-pull; used for display backlight enable, power sequencing, or status indication. |
| GPI | General-Purpose Input | Continuously sampled interrupt input for touch-screen controllers; supports wake-from-sleep functionality. |
| ERR | Error Status Output | Active-low signal indicating loss of serial lock, HDCP authentication failure, or CRC error on control channel. |
| RESET# | Hardware Reset Input | Asynchronous active-low reset; initiates full device initialization and link retraining sequence. |
Key Features
| Feature | Design Value |
|---|---|
| HDCP 1.4 Content Protection | Integrated encryption engine compliant with automotive infotainment security requirements; supports repeater topology with two µCs. |
| Programmable Cable Equalizer | Adjustable 0–18dB boost across 7 settings - extends usable coax cable length to 15m at full 3.12Gbps data rate. |
| Spread-Spectrum Clocking | Reduces EMI emissions by modulating PCLKOUT frequency; tracks incoming spread spectrum on serial input. |
| Reverse Control Channel | UART/I²C bidirectional interface operating up to 1Mbps - enables host µC to configure remote serializer and peripheral sensors without dedicated wires. |
| Color Lookup Table (LUT) | Programmable gamma correction engine with 256×24-bit entries - eliminates need for external video processing IC in display modules. |
| Built-in PRBS Tester | On-chip pseudo-random bit sequence generator and checker - allows BER validation of GMSL link without external test equipment. |
Applications
| High-Resolution Automotive Navigation | Rear-Seat Infotainment |
|---|---|
Use Scenario: Central display unit receiving video from front camera, surround-view processor, and map rendering GPU via single coax cable. IC Role / Device Role / Timing Role: Deserializes GMSL video stream into parallel RGB888 + HS/VS/DE timing; provides synchronized MCLK/WS/SCK for audio playback. Use Value: Replaces multi-lane LVDS routing with single-cable solution, reducing harness weight and EMI susceptibility while maintaining 104MHz pixel timing integrity. |
Use Scenario: Rear-seat tablet or seatback display powered and controlled over same coax that carries video from head-unit. IC Role / Device Role / Timing Role: Receives video + bidirectional control channel; uses GPIO0 to enable display power rail and GPI to relay touch interrupts to host MCU. Use Value: Eliminates separate I²C/UART wiring harness; enables remote firmware updates and HDCP key exchange over existing video cable. |
| Megapixel Camera Systems | ADAS Display Fusion Units |
Use Scenario: Front-facing ADAS camera module transmitting raw 1.3MP/30fps image data to domain controller. IC Role / Device Role / Timing Role: Deserializes GMSL stream into parallel YUV422; generates frame-sync pulse (FSYNC) aligned to camera exposure timing. Use Value: Supports fast loss-of-sync detection (<1ms) and auto-reset - critical for fail-operational camera links in ISO 26262 ASIL-B systems. |
Use Scenario: Domain controller fusing video from multiple cameras, radar, and ultrasonic sensors onto single HUD or instrument cluster display. IC Role / Device Role / Timing Role: Acts as deserializer hub with multiple GMSL inputs; uses color LUT to match gamma across heterogeneous sensor sources. Use Value: Enables pixel-level timing alignment and gamma-matched blending without external video processor, reducing latency and BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GMSL deserializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9276AGTN+ | No HDCP engine; otherwise identical pinout, timing, and feature set; lower quiescent current (no HDCP overhead). | Suitable for non-content-protected video links (e.g., camera-to-ECU, non-HDMI display paths). | Select MAX9276AGTN+ when HDCP is unnecessary and power budget is constrained. |
| TI DS90UB954-Q1 | FPD-Link III compatible; different register map, no built-in LUT or PRBS tester; requires external HDCP if needed. | Used in FPD-Link III ecosystems; lacks native GMSL protocol stack and coax splitter mode. | Choose DS90UB954-Q1 only when migrating from existing FPD-Link III designs or requiring TI ecosystem support. |
Compared with MAX9276AGTN+, the MAX9280AGTN+ adds mandatory HDCP 1.4 compliance and associated power/thermal overhead, while DS90UB954-Q1 requires external components to replicate LUT-based gamma correction and link integrity testing - making MAX9280AGTN+ the only drop-in solution for secure, self-contained GMSL display interfaces.
Availability
MAX9280AGTN+ 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 ranges and long production lifecycles.
Supply support for MAX9280AGTN+ 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 - emphasizing reliability, integration, and AEC-Q100 qualification.
The MAX9280AGTN+ belongs to Maxim's GMSL serializer/deserializer product line, engineered specifically for high-bandwidth, low-latency, EMI-resilient video transport in automotive ADAS and infotainment systems.
FAQ
What is the primary function of the MAX9280AGTN+ in an automotive video system?
The MAX9280AGTN+ serves as a GMSL deserializer that receives high-speed serialized video, audio, and control data over coax or STP cable and converts it into parallel LVCMOS video signals (up to 24-bit RGB), I²S/TDM audio streams, and bidirectional UART/I²C control traffic. Its integrated HDCP 1.4 engine secures content for premium infotainment displays, and its −40°C to +105°C rating ensures operation in demanding automotive environments. The MAX9280AGTN+ is essential for simplifying cabling while maintaining timing integrity and security compliance.
Does the MAX9280AGTN+ support both coaxial and shielded twisted-pair (STP) cable inputs?
Yes, the MAX9280AGTN+ natively supports both 50Ω coaxial and 100Ω shielded twisted-pair (STP) cable inputs. It automatically detects cable type using the CABLE_TYPE pin and configures internal termination and equalization accordingly. When programmed for STP input, the MAX9280AGTN+ maintains backward compatibility with legacy GMSL serializers, enabling seamless integration into existing STP-based camera or display links without hardware changes.
How does the MAX9280AGTN+ handle audio data, and what formats are supported?
The MAX9280AGTN+ supports stereo L-PCM I²S and up to eight-channel L-PCM in TDM mode, with sample rates from 32kHz to 192kHz and sample depths up to 32 bits. Audio clocking can be derived from either the audio source (e.g., head-unit) or sink (e.g., display codec), providing design flexibility. The MAX9280AGTN+ outputs dedicated AUD_MCLK, AUD_WS, AUD_SCK, and AUD_SD signals, enabling direct connection to external audio codecs without additional clock generation circuitry.
What role does the reverse control channel play in the MAX9280AGTN+ architecture?
The reverse control channel in the MAX9280AGTN+ enables bidirectional communication (UART-to-UART, UART-to-I²C, or I²C-to-I²C) at speeds up to 1Mbps over the same coax or STP cable used for video. This allows a host microcontroller to program registers in the remote serializer, peripheral sensors, or the MAX9280AGTN+ itself - all without requiring separate control wiring. The MAX9280AGTN+ supports clock-stretching and high-immunity modes to ensure reliable operation in electrically noisy automotive environments.
Is the MAX9280AGTN+ pin-compatible with other devices in the MAX9276A/MAX9280A family?
Yes, the MAX9280AGTN+ shares identical pinout, package (56-pin TQFN), and electrical characteristics with the MAX9276AGTN+, differing only in HDCP functionality and associated register space. Both devices use the same PCB footprint, thermal pad layout, and power supply configuration - allowing drop-in replacement where HDCP is not required (MAX9276AGTN+) or must be enabled (MAX9280AGTN+), with no layout or firmware changes needed beyond HDCP-specific initialization.
MAX9280AGTN+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 56-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Deserializer
- Data Rate:
- 3.12Gbps
- Input Type:
- CML
- Output Type:
- LVCMOS
- Number of Inputs:
- 1
- Number of Outputs:
- 32
- Voltage - Supply:
- 1.7V ~ 1.9V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TQFN (8x8)
MAX9280AGTN+ FAQ
1.How can I place an order for MAX9280AGTN+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9280AGTN+ 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 MAX9280AGTN+ reliable?
The price and inventory of MAX9280AGTN+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9280AGTN+ is usually 5 days.
3.What payment methods are accepted for MAX9280AGTN+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9280AGTN+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9280AGTN+?
MAX9280AGTN+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9280AGTN+ 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 MAX9280AGTN+?
For technical support, including MAX9280AGTN+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9280AGTN+ requirements.
6.How does Aetrix verify that MAX9280AGTN+ is sourced from the original manufacturer or authorized distributors?
All MAX9280AGTN+ 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 MAX9280AGTN+ meets industry standards.
7.What is the process for return or replacement of MAX9280AGTN+?
All MAX9280AGTN+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9280AGTN+, 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 MAX9280AGTN+ part is unused and in its original packaging.
Return procedure for MAX9280AGTN+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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