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Analog Devices Inc./Maxim Integrated MAX9277GTM+
- Part No.:
- MAX9277GTM+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Serializers, Deserializers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
MAX9277GTM+.pdf
- Description:
- IC DESERIALIZ GMSL 3.12GBPS 48TQ
- Quantity:
- Payment:
- Shipping:
Inventory:225
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Product details
Overview
MAX9277GTM+ from Maxim Integrated is a 3.12Gbps GMSL serializer with 3- or 4-lane LVDS input (oLDI) and programmable CML serial output for 50Ω coax or 100Ω STP cable drive. It supports up to 192kHz/32-bit audio, 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 MAX9277GTM+ datasheet, MAX9277GTM+ pinout, MAX9277GTM+ application, or MAX9277GTM+ equivalent, key selection considerations include coax/STP output programmability, embedded UART/I2C control channel (up to 1Mbps), serializer pre/deemphasis for 15m full-speed cable runs, spread-spectrum EMI reduction, and GPO support for touch-screen interrupt signaling.
Technical Context
The MAX9277GTM+ implements a jitter-filtering PLL that attenuates input pixel clock jitter and tracks spread spectrum on RXCLKIN. Its reverse control channel operates in UART-UART, UART-I2C, or I2C-I2C modes with clock-stretch capability and high-immunity mode for noise rejection.
It features a programmable pre/deemphasis driver for coax or STP output, configurable serial amplitude (100–500mV SE / 100–400mV diff), and supports PRBS-based BER testing. The device includes dedicated GPO for remote touch-screen interrupt and supports sleep/wake-up via local or remote signaling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial data rate | Up to 3.12Gbps - enables transmission of HD video (e.g., 1920×720p/60Hz with 24-bit color) over single coax or STP cable. |
| Input interface | 3- or 4-lane LVDS (oLDI) - compatible with standard image sensor or display timing controllers using low-voltage differential signaling. |
| Output drive | Programmable CML for 50Ω coax or 100Ω STP - eliminates need for external level-shifting or impedance-matching circuitry. |
| Audio support | L-PCM I²S stereo or up to 8-channel TDM at 32kHz–192kHz / 16–32 bits - enables high-fidelity multi-zone audio routing in vehicle cabins. |
| Control channel | UART/I²C bidirectional link up to 1Mbps - allows microcontroller to configure serializer, deserializer, and peripherals independent of video timing. |
| Operating temperature | -40°C to +105°C - qualified for under-hood and dashboard-mounted automotive electronics per AEC-Q100 requirements. |
| ESD protection | ±8kV contact / ±15kV air per ISO 10605 and IEC 61000-4-2 - ensures robustness in high-noise automotive environments. |
Pinout & Package
The MAX9277GTM+ is housed in a lead-free, 48-pin, 7mm × 7mm TQFN package with exposed thermal pad and 0.5mm pitch. Optional wettable flanks support automated optical inspection (AOI) of solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVDD, DVDD, IOVDD, LVDSVDD | Power supply inputs | Dedicated rails for analog core (1.7–1.9V), digital logic (1.7–1.9V), I/O (1.7–3.6V), and LVDS receiver (1.7–3.6V) - enable independent noise isolation and voltage optimization. |
| OUT+, OUT- | CML serial output | Differential high-speed output pair programmable for coax (SE) or STP (diff) drive - supports impedance-matched transmission without external termination. |
| LVDS[0:3]+, LVDS[0:3]- | LVDS data input lanes | Four differential pairs accepting oLDI-format video/audio data - 3-lane mode disables LVDS3; skew-tolerant design accommodates PCB trace length mismatches. |
| CLK+, CLK- | LVDS pixel clock input | Differential clock input supporting 6.25MHz–104MHz - feeds jitter-filtering PLL to clean timing for high-resolution display or imaging pipelines. |
| GPO | General-purpose output | Open-drain output configurable for touch-screen controller interrupt signaling - reduces system-level polling overhead and improves responsiveness. |
| SDA, SCL, TX, RX | I²C/UART control interface | Shared pins for bidirectional control channel communication - supports mixed-mode protocols and register access to local/remote devices without video interruption. |
| CONF[1:0] | Configuration inputs | 3-level logic inputs setting default device address and startup mode - enables hardware-selectable configuration without firmware initialization. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pre/deemphasis | Enables reliable 15m cable transmission at full 3.12Gbps data rate by compensating for high-frequency loss in coax or STP media. |
| Spread-spectrum modulation | Reduces peak EMI emissions by spreading serial output energy across a defined bandwidth - simplifies EMC compliance in space-constrained automotive modules. |
| Built-in PRBS generator | Allows in-system bit-error-rate validation of the entire GMSL link without external test equipment - accelerates production line testing and field diagnostics. |
| Jitter-filtering PLL with spread tracking | Attenuates input clock jitter while synchronizing to spread-spectrum reference - preserves timing integrity for high-bandwidth video and audio sampling. |
| High-immunity reverse control channel | Ensures robust UART/I²C communication over long cables in noisy automotive environments - maintains register visibility and HDCP management even during EMI events. |
Applications
| Automotive Rear-Seat Infotainment | Megapixel Camera Systems |
|---|---|
Use Scenario: Transmitting HD video and multi-channel audio from head unit to rear-seat displays and speakers. IC Role / Device Role / Timing Role: Serializer converting parallel LVDS video/audio into a single high-speed serial stream over coax cable. Use Value: Reduces wiring harness weight and cost vs. parallel RGB or LVDS cabling; supports 1920×720p/60Hz with 24-bit color and 7.1-channel HD audio. | Use Scenario: Linking front/rear/surround cameras to ADAS domain controller over long cable runs. IC Role / Device Role / Timing Role: Serializer capturing raw image data from CMOS sensors and transmitting over STP to central processing unit. Use Value: Enables 15m full-speed transmission with pre/deemphasis; supports frame sync and HS/VS/DE inversion for precise image capture timing. |
| High-Resolution Automotive Navigation | ADAS Sensor Fusion Hubs |
Use Scenario: Driving high-brightness TFT displays in instrument clusters or center consoles with minimal latency. IC Role / Device Role / Timing Role: Video serializer feeding display controller with synchronized pixel clock and data valid signals. Use Value: 104MHz pixel clock support enables 1920×720p resolution at 60Hz; jitter filtering ensures stable display rendering under EMI stress. | Use Scenario: Aggregating video, radar, and ultrasonic sensor data into unified timing domains for fusion processing. IC Role / Device Role / Timing Role: High-bandwidth serializer providing deterministic latency and precise frame synchronization across multiple sensor links. Use Value: Reverse control channel allows centralized configuration of all connected sensors; GPO supports interrupt-driven event notification from remote endpoints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GMSL serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9278GTM+ | Same pinout and feature set but supports HDCP content protection (MAX9281-compatible); otherwise identical electrical and timing behavior. | Required where end-to-end encrypted video transmission is mandated (e.g., premium infotainment with DRM). | Select MAX9278GTM+ only if HDCP licensing and cryptographic key management infrastructure is available. |
| DS90UB925QSQ/NOPB | TI FPD-Link III serializer; 3.12Gbps max, but uses different protocol stack, register map, and control channel implementation. | Compatible with TI deserializers only; not interoperable with GMSL deserializers without protocol translation. | Choose only when migrating within TI ecosystem or when leveraging TI-specific tools and support infrastructure. |
Compared with MAX9278GTM+, the MAX9277GTM+ omits HDCP encryption but offers identical video/audio performance, cable drive, and control flexibility - making it optimal for non-DRM automotive displays and cameras. Against DS90UB925QSQ/NOPB, MAX9277GTM+ provides native GMSL compatibility, coax/STP dual-drive flexibility, and integrated spread-spectrum EMI control.
Availability
MAX9277GTM+ is available at Aetrix Electronics and suitable for automotive rear-seat infotainment, megapixel camera systems, and high-resolution navigation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MAX9277GTM+ 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 MAX9277GTM+ belongs to Maxim's GMSL serializer family, engineered specifically for high-bandwidth, low-latency, EMI-resilient video and audio transport in automotive ADAS and infotainment systems.
FAQ
What is the maximum supported pixel clock frequency for MAX9277GTM+?
The MAX9277GTM+ supports a maximum pixel clock frequency of 104MHz, enabling high-bandwidth video formats such as 1920×720p at 60Hz with 24-bit color depth. This timing capability is verified under worst-case process/voltage/temperature conditions and aligns with GMSL specification requirements for display applications. The device's jitter-filtering PLL ensures stable clock recovery even with noisy or spread-spectrum references.
Does MAX9277GTM+ support both coaxial and shielded twisted pair (STP) cable outputs?
Yes, the MAX9277GTM+ supports both 50Ω coax and 100Ω STP cable outputs via programmable CML driver settings. Output amplitude is adjustable from 100mV to 500mV single-ended (coax) or 100mV to 400mV differential (STP). This dual-cable compatibility allows flexible system architecture choices without redesigning the physical layer interface.
Can MAX9277GTM+ transmit multi-channel audio alongside video data?
Yes, the MAX9277GTM+ embeds an audio channel supporting L-PCM I²S stereo or up to 8-channel TDM audio at sample rates from 32kHz to 192kHz and sample depths up to 32 bits. Audio is time-multiplexed with video in the serial stream, preserving synchronization and eliminating need for separate audio interfaces in automotive cabin systems.
What control interfaces does MAX9277GTM+ provide for configuration and monitoring?
The MAX9277GTM+ provides a bidirectional embedded control channel operating in UART-UART, UART-I²C, or I²C-I²C modes at speeds up to 1Mbps. This allows a microcontroller to read/write registers of the MAX9277GTM+, its paired deserializer, and downstream peripherals - all independently of video timing, enabling dynamic reconfiguration and real-time diagnostics.
Is MAX9277GTM+ qualified for automotive temperature and reliability requirements?
Yes, the MAX9277GTM+ is specified for operation from -40°C to +105°C and meets ISO 10605 and IEC 61000-4-2 ESD standards (±8kV contact / ±15kV air). Its design targets AEC-Q100-compliant automotive applications including ADAS camera links and infotainment displays, with robust power supply partitioning and fault detection features.
MAX9277GTM+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Serializer
- Data Rate:
- 3.12Gbps
- Input Type:
- LVDS
- Output Type:
- SMAART Wire
- Number of Inputs:
- 30
- Number of Outputs:
- 1
- Voltage - Supply:
- 1.7V ~ 1.9V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFN (7x7)
MAX9277GTM+ FAQ
1.How can I place an order for MAX9277GTM+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9277GTM+ 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 MAX9277GTM+ reliable?
The price and inventory of MAX9277GTM+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9277GTM+ is usually 5 days.
3.What payment methods are accepted for MAX9277GTM+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9277GTM+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9277GTM+?
MAX9277GTM+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9277GTM+ 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 MAX9277GTM+?
For technical support, including MAX9277GTM+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9277GTM+ requirements.
6.How does Aetrix verify that MAX9277GTM+ is sourced from the original manufacturer or authorized distributors?
All MAX9277GTM+ 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 MAX9277GTM+ meets industry standards.
7.What is the process for return or replacement of MAX9277GTM+?
All MAX9277GTM+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9277GTM+, 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 MAX9277GTM+ part is unused and in its original packaging.
Return procedure for MAX9277GTM+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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