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Analog Devices Inc./Maxim Integrated MAX9275GTN+
- Part No.:
- MAX9275GTN+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Serializers, Deserializers
- Package:
- 56-WFQFN Exposed Pad
- Datasheet:
-
MAX9275GTN+.pdf
- Description:
- IC DESERIALIZ GMSL 3.12GBPS 56TQ
- Quantity:
- Payment:
- Shipping:
Inventory:4,041
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Product details
Overview
The MAX9275GTN+ from Maxim Integrated is a 3.12Gbps Gigabit Multimedia Serial Link (GMSL) serializer with parallel LVCMOS inputs and CML serial output, programmable for 50Ω coax or 100Ω STP cable drive. It supports up to 104MHz pixel clock, 192kHz/32-bit audio in TDM mode, and operates from -40°C to +105°C for automotive display and camera systems.
For engineers reviewing the MAX9275GTN+ datasheet, MAX9275GTN+ pinout, MAX9275GTN+ application, or MAX9275GTN+ equivalent, key selection considerations include coax/STP output configuration, embedded UART/I2C control channel operation 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 MAX9275GTN+ implements a GMSL link layer with configurable serial output amplitude (100–500mV SE / 100–400mV diff), programmable spread spectrum modulation, and bypassable input PLL for parallel clock jitter attenuation. Its reverse control channel supports UART-UART, UART-I2C, and I2C-I2C modes with clock-stretch capability.
It features a dedicated PRBS generator for BER testing, high-immunity reverse control channel mode, and sleep/wake-up functionality via local or remote signaling. The device meets ISO 10605 (±8kV contact, ±15kV air) and IEC 61000-4-2 ESD standards, with core supply at 1.7–1.9V and I/O supply at 1.7–3.6V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial data rate | Up to 3.12Gbps - enables transmission of 1920×720p60 video with 24-bit color over single coax or STP cable. |
| Pixel clock range | 6.25MHz to 104MHz - supports high-bandwidth display timing including 104MHz for 1920×720p60. |
| Audio capability | L-PCM I²S stereo or up to 8-channel TDM at 32kHz–192kHz sample rate and 16–32-bit depth - suitable for 7.1 HD audio transport. |
| Control channel speed | 9.6kbps to 1Mbps in UART, mixed UART/I²C, or I²C mode - allows real-time register access independent of video timing. |
| Output drive | Programmable 100–500mV single-ended (coax) or 100–400mV differential (STP) - matches impedance of low-cost FAKRA connectors or shielded twisted pair. |
| Operating temperature | -40°C to +105°C - qualified for under-hood and infotainment head-unit environments in automotive applications. |
| ESD protection | ±8kV contact / ±15kV air per ISO 10605 and IEC 61000-4-2 - ensures robustness in noisy vehicle electrical systems. |
Pinout & Package
The MAX9275GTN+ 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 data bus accepting RGB/YUV video or generic parallel payload. |
| PCLKIN | Pixel clock input | Accepts 6.25–104MHz LVCMOS clock; supports spread-spectrum tracking for jitter reduction. |
| OUT+, OUT- | CML serial output | Differential CML driver configurable for coax (SE) or STP (diff); amplitude programmable for cable loss compensation. |
| GPO | General-purpose output | Open-drain or push-pull output supporting touch-screen controller interrupt signaling or system wake-up. |
| CONF[3:0] | Configuration strap inputs | Three-level logic pins setting startup mode, reverse control channel protocol, and HDCP enable (though MAX9275 lacks HDCP). |
| SD, SCK, WS | I²S audio interface | Supports stereo I²S or multi-channel TDM audio input synchronized to PCLKIN or internal timing. |
| AVDD, DVDD, IOVDD | Power supplies | Separate 1.7–1.9V analog/digital core and 1.7–3.6V I/O rails - enables flexible power domain partitioning. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable pre/deemphasis | Enables reliable 15m cable transmission at full 3.12Gbps data rate without external equalization. |
| Embedded control channel | UART/I²C bidirectional link operating up to 1Mbps - permits microcontroller access to serializer, deserializer, and peripheral registers mid-video stream. |
| Spread-spectrum modulation | Reduces peak EMI by spreading serial output energy across frequency band - eases EMC compliance in dense automotive PCB layouts. |
| Built-in PRBS generator | On-chip pseudo-random bit sequence source for end-to-end link BER validation without external test equipment. |
| High-immunity reverse control mode | Enhanced noise rejection on control channel - maintains register communication integrity in high-voltage switching environments (e.g., near motors or inverters). |
Applications
| High-Resolution Automotive Navigation | Rear-Seat Infotainment |
|---|---|
Use Scenario: Central display unit transmitting 1920×720p60 video to instrument cluster or HUD via coax cable. IC Role / Device Role / Timing Role: Serializer converting parallel LVCMOS video into serialized GMSL stream with embedded timing and control channel. Use Value: Eliminates bulky parallel wiring harnesses; supports long-reach, EMI-robust transmission with real-time diagnostics and firmware updates over same link. | Use Scenario: Head-unit sending video/audio to rear-seat displays and speakers using shared coax infrastructure. IC Role / Device Role / Timing Role: GMSL serializer multiplexing video, 7.1-channel HD audio, and touch-control signals onto single serial link. Use Value: Reduces connector count and weight; enables simultaneous high-fidelity audio/video transport with <1µs latency for lip-sync accuracy. |
| Megapixel Camera Systems | ADAS Sensor Fusion Hub |
Use Scenario: Front-facing ADAS camera transmitting raw 12-bit 1920×1080p30 image data to domain controller over STP. IC Role / Device Role / Timing Role: Serializer formatting parallel image sensor output into GMSL frame structure with HS/VS/DE synchronization. Use Value: Supports >100MHz pixel rates required for megapixel sensors; provides line-fault detection and built-in PRBS for production-line camera calibration. | Use Scenario: Domain controller aggregating video feeds from multiple cameras and radar modules into unified perception pipeline. IC Role / Device Role / Timing Role: Serializer enabling time-synchronized multi-camera ingestion with embedded control for sensor configuration and health monitoring. Use Value: Enables deterministic latency across all camera links; supports remote wake-up and sleep-mode coordination to reduce system power during park mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GMSL serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9271GTJ+ | Lower 1.5Gbps data rate; no spread spectrum; fixed 100Ω STP drive only - lacks coax compatibility and EMI reduction features. | Suitable for shorter (<8m), lower-resolution camera links where cost is prioritized over flexibility and EMC robustness. | Select MAX9271GTJ+ only when 3.12Gbps bandwidth and dual-cable-type support are unnecessary. |
| MAX9295AUB+ | Higher 6Gbps data rate; integrated HDCP 2.2; supports GMSL2 protocol - adds encryption, higher throughput, and backward-compatible framing. | Required for next-gen automotive displays needing content protection and >4K resolution support. | Choose MAX9295AUB+ when upgrading to GMSL2 ecosystem or requiring HDCP for premium infotainment content. |
Compared with MAX9271GTJ+, the MAX9275GTN+ delivers 2× bandwidth, coax/STP flexibility, and spread-spectrum EMI control; versus MAX9295AUB+, it offers cost-optimized GMSL1 compatibility without HDCP overhead - ideal for non-content-protected, high-bandwidth legacy automotive video links.
Availability
MAX9275GTN+ 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 rigorous ESD environments.
Supply support for MAX9275GTN+ 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 MAX9275GTN+ belongs to Maxim's GMSL serializer product line, 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 the MAX9275GTN+?
The MAX9275GTN+ supports a maximum pixel clock frequency of 104MHz. This enables transmission of high-resolution video formats such as 1920×720p60 with 24-bit color depth over a single coax or STP cable. The device maintains timing integrity through its bypassable input PLL and spread-spectrum tracking capability, ensuring low-jitter operation even at this upper limit. This specification is confirmed in the AC Electrical Characteristics section of the official MAX9275/MAX9279 datasheet.
Does the MAX9275GTN+ support HDCP content protection?
No, the MAX9275GTN+ does not support HDCP content protection. HDCP is implemented exclusively in the MAX9279 variant, which shares the same pinout and core functionality but includes additional encryption circuitry and associated registers. The MAX9275GTN+ is functionally identical to the MAX9279 except for the absence of HDCP; all other specifications-including data rate, audio capability, control channel, and packaging-are identical between the two parts.
Can the MAX9275GTN+ drive both coaxial and shielded twisted pair cables?
Yes, the MAX9275GTN+ is programmable to drive either 50Ω coaxial cable (using single-ended output) or 100Ω shielded twisted pair (STP) cable (using differential output). Output amplitude is adjustable from 100–500mV SE or 100–400mV diff to compensate for varying cable losses. This dual-cable compatibility allows system designers to select cost-effective FAKRA connectors for coax or robust STP solutions for longer runs or higher noise immunity-without changing the serializer IC.
What audio formats and sample rates does the MAX9275GTN+ support?
The MAX9275GTN+ supports L-PCM audio in stereo I²S format or up to eight channels in TDM mode, with sample rates ranging from 32kHz to 192kHz and sample depths up to 32 bits. It handles common configurations including 7.1-channel HD audio at 192kHz/24-bit. Audio data is embedded alongside video in the GMSL frame structure, maintaining precise synchronization via the PCLKIN signal or internal timing. These capabilities are fully documented in the Audio Channel section of the MAX9275/MAX9279 datasheet.
How does the MAX9275GTN+ handle electromagnetic interference (EMI) in automotive environments?
The MAX9275GTN+ reduces EMI through programmable spread-spectrum modulation on its serial output and optimized CML driver design. It meets ISO 10605 (±8kV contact, ±15kV air) and IEC 61000-4-2 ESD standards, and includes high-immunity reverse control channel mode for noise rejection. Its ability to drive low-cost 50Ω coax eliminates need for heavy shielding, while pre/deemphasis tuning compensates for cable loss without external components-collectively easing EMC compliance in demanding automotive PCB layouts.
MAX9275GTN+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 56-WFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Serializer
- Data Rate:
- 3.12Gbps
- Input Type:
- LVCMOS
- Output Type:
- CML
- Number of Inputs:
- 28
- 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:
- 56-TQFN (8x8)
MAX9275GTN+ FAQ
1.How can I place an order for MAX9275GTN+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9275GTN+ 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 MAX9275GTN+ reliable?
The price and inventory of MAX9275GTN+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9275GTN+ is usually 5 days.
3.What payment methods are accepted for MAX9275GTN+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9275GTN+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9275GTN+?
MAX9275GTN+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9275GTN+ 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 MAX9275GTN+?
For technical support, including MAX9275GTN+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9275GTN+ requirements.
6.How does Aetrix verify that MAX9275GTN+ is sourced from the original manufacturer or authorized distributors?
All MAX9275GTN+ 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 MAX9275GTN+ meets industry standards.
7.What is the process for return or replacement of MAX9275GTN+?
All MAX9275GTN+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9275GTN+, 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 MAX9275GTN+ part is unused and in its original packaging.
Return procedure for MAX9275GTN+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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