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Analog Devices Inc./Maxim Integrated MAX9240GTM+T
- Part No.:
- MAX9240GTM+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Serializers, Deserializers
- Package:
- 48-WFQFN Exposed Pad
- Datasheet:
-
MAX9240GTM+T.pdf
- Description:
- IC DESERIALIZER 28BIT GMSL QFN
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MAX9240GTM+T from Maxim Integrated is a 25-bit GMSL deserializer IC designed for automotive camera links over 50Ω coax or 100Ω STP cable, supporting 6.25MHz–100MHz pixel clocks, up to 1.5Gbps serial bit rate, and line-fault detection. It pairs with MAX9271/MAX9273 serializers and operates from -40°C to +105°C in automotive camera systems.
For engineers reviewing the MAX9240GTM+T datasheet, MAX9240GTM+T pinout, MAX9240GTM+T application, or MAX9240GTM+T equivalent, key selection considerations include GMSL link compatibility, programmable equalization for 15m full-speed cable runs, dual-mode control channel (I²C/UART), embedded PRBS checker, and fault detection of short-to-ground/battery/open conditions.
Technical Context
The MAX9240GTM+T implements a GMSL-compliant deserialization engine with configurable single/double-rate parallel output, enabling megapixel camera support via staggered 25-bit data delivery synchronized to PCLKOUT. Its reverse control channel operates bidirectionally at 9.6kbps–1Mbps in I²C-to-I²C, UART-to-UART, or UART-to-I²C modes with clock stretch capability.
Internally, it integrates a programmable line equalizer (5 boost levels), spread-spectrum modulation on parallel outputs (reducing EMI), CRC and Hamming code error correction, and dedicated line-fault detection circuitry that identifies shorts, opens, and battery/ground faults on the serial input pair (IN+/IN-).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial Input Range | 6.25MHz–100MHz pixel clock; supports up to 1.5Gbps serialized data rate for high-resolution automotive video streams. |
| Parallel Output Width | 25-bit programmable output; configurable as single-rate (full word per cycle) or double-rate (half-word per cycle) for timing alignment with GMSL serializers. |
| Control Channel Speed | 9.6kbps–1Mbps; enables real-time register programming of serializer/peripheral devices independent of video timing. |
| Cable Equalization | 5 programmable boost levels; extends usable coax/STP reach to 15m at full speed while maintaining signal integrity. |
| Supply Voltage Ranges | Core: 1.7V–1.9V (AVDD/DVDD); I/O: 1.7V–3.6V (IOVDD); enables flexible interface voltage matching with SoCs and sensors. |
| ESD Protection | IEC 61000-4-2: ±10kV contact / ±15kV air; ISO 10605: ±10kV contact / ±30kV air - meets automotive-grade robustness requirements. |
| Operating Temperature | -40°C to +105°C; qualified for under-hood and ADAS camera module environments without derating. |
Pinout & Package
The MAX9240GTM+T is housed in a 48-pin TQFN-EP package (7mm × 7mm, 0.5mm pitch) with exposed pad thermally connected to PCB ground.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN+, IN- | Differential serial input | Accepts GMSL-encoded high-speed data from coax/STP; includes integrated line-fault detection and activity monitoring. |
| PCLKOUT | Parallel clock output | Provides source-synchronous clock for latching 25-bit parallel data; supports double-rate mode for staggered output timing. |
| DOUT[0:24] | Parallel data output | 25-bit CMOS outputs; configurable for single/double-rate operation; DCS bit selects drive strength (2mA/4mA typical). |
| GPIO0/DBL, GPIO1/BWS | Programmable I/O | Two bidirectional GPIOs; DBL controls double-rate mode; BWS sets bus width; both support interrupt and configuration functions. |
| GPI | Continuously sampled input | Dedicated frame-sync trigger input (e.g., camera VSYNC); sampled at high rate for precise timing capture. |
| RX/SDA/EDC, TX/SCL/ES | Control channel I/O | Open-drain pins supporting I²C slave or UART interface; EDC/ES enable error-detection control signaling. |
| ERR, LOCK, LFLT | Status outputs | ERR asserts on CRC/Hamming errors; LOCK indicates valid link lock; LFLT signals detected line fault (short/open/battery/ground). |
Key Features
| Feature | Design Value |
|---|---|
| Embedded PRBS checker | Enables real-time bit-error-rate (BER) testing of the GMSL serial link without external equipment. |
| Programmable spread spectrum | Reduces EMI emissions on parallel outputs by modulating PCLKOUT frequency; tracks incoming spread spectrum on serial input. |
| Three-level CX/TP input | Detects cable type (coax vs. STP) automatically via mid-level logic sensing, eliminating manual configuration. |
| Staggered parallel output delay | Configurable inter-bit skew (Table 12) allows fine-tuning of setup/hold timing margins for downstream FPGA/SoC interfaces. |
| Remote/local wake-up | Supports low-power sleep mode with wake-up via serial link activity, GPI edge, or control channel command - critical for power-constrained camera modules. |
Applications
| ADAS Front Camera | Rearview Camera Module |
|---|---|
|
Use Scenario: High-resolution 1.3MP–2MP camera mounted behind rearview mirror, transmitting video over 10m coax to central domain controller. IC Role / Device Role / Timing Role: Deserializes GMSL stream into 25-bit parallel video data with embedded frame sync (via GPI) and provides PCLKOUT for pixel-aligned capture. Use Value: Enables use of low-cost FAKRA coax and connectors while maintaining <10⁻¹² BER via CRC+Hamming correction and real-time line-fault monitoring. |
Use Scenario: Backup camera with wide dynamic range (WDR), mounted on vehicle tailgate, operating in -40°C winter conditions. IC Role / Device Role / Timing Role: Receives serialized video from MAX9271 serializer; performs cable equalization and spread-spectrum EMI reduction for clean parallel output to image processor. Use Value: Sustains full 100MHz operation over 12m STP cable at -40°C using programmable equalizer boost and wide IOVDD range (1.7V–3.6V). |
| Surround-View System Sensor | Driver Monitoring Camera |
|
Use Scenario: Four-corner surround-view system requiring synchronized start-up and fault reporting across all cameras. IC Role / Device Role / Timing Role: Provides synchronized link lock (LOCK), error status (ERR), and line-fault indication (LFLT) to MCU via control channel for centralized diagnostics. Use Value: Eliminates need for separate fault-monitoring circuitry; enables rapid identification of open-circuit or shorted coax cables during vehicle self-test. |
Use Scenario: In-cabin driver attention camera with strict EMI limits due to proximity to infotainment RF modules. IC Role / Device Role / Timing Role: Deserializes video while applying programmable spread spectrum on PCLKOUT and DOUT buses to suppress harmonic emissions. Use Value: Meets CISPR 25 Class 5 radiated emissions requirements without additional shielding or ferrites on the parallel interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar GMSL deserializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9241GTM+T | Same pinout and package; adds integrated 1.8V LDO for AVDD/DVDD, reducing external supply components. | Preferred where board space is constrained and core supply regulation must be integrated; not suitable if discrete core regulators are already deployed. | Select MAX9241GTM+T when simplifying power tree is prioritized over cost-sensitive designs using existing 1.8V rails. |
| DS90UB954TRGZT | FPGA-compatible 28-bit parallel output; supports FPD-Link III and GMSL2; requires different control protocol and has no native line-fault detection. | Used in multi-camera clusters with TI-based domain controllers; lacks built-in short-to-battery detection and PRBS checker. | Choose DS90UB954TRGZT only when migrating to FPD-Link III infrastructure or requiring >25-bit data paths; verify control firmware compatibility. |
Compared with MAX9241GTM+T and DS90UB954TRGZT, the MAX9240GTM+T delivers best-in-class 90mA max supply current, native line-fault diagnostics, and seamless integration with MAX9271/MAX9273 serializers - making it optimal for cost- and reliability-sensitive automotive camera links where GMSL1 compliance and diagnostic depth are required.
Availability
MAX9240GTM+T is available at Aetrix Electronics and suitable for automotive ADAS front/rear cameras, surround-view sensor nodes, and driver-monitoring systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for MAX9240GTM+T 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 MAX9240GTM+T belongs to Maxim's GMSL serializer/deserializer product line, engineered specifically for high-reliability, low-latency automotive camera links with integrated diagnostics and EMI mitigation.
FAQ
What is the maximum supported cable length for MAX9240GTM+T at 100MHz?
The MAX9240GTM+T supports up to 15m of coax or STP cable at full 100MHz operation when using the highest programmable equalizer boost level. This is validated per datasheet Table 5 and Figure 34, assuming standard 50Ω coax or 100Ω STP with proper termination and FAKRA/automotive-grade connectors.
Does MAX9240GTM+T support both I²C and UART control channel modes?
Yes, the MAX9240GTM+T supports three control channel configurations: I²C-to-I²C (with clock stretch), UART-to-UART, and UART-to-I²C. Mode selection is configured via internal registers (e.g., CTRL1[7:6]), and all operate from 9.6kbps to 1Mbps - enabling flexible integration with diverse microcontrollers.
How does line-fault detection work on MAX9240GTM+T?
The MAX9240GTM+T continuously monitors the IN+/IN- differential pair for shorts (to ground, battery, or each other), opens, and impedance anomalies. Detected faults assert the LFLT pin and are reported in register 0x23 D[7:0]; mapping is defined in Table 13a of the datasheet, with no software polling required.
Can MAX9240GTM+T be used with MAX9273 serializer?
Yes, the MAX9240GTM+T is explicitly designed to pair with both MAX9271 and MAX9273 serializers. The datasheet General Description and Applications sections confirm interoperability, including support for double-input mode, reverse control channel handshaking, and shared GMSL protocol framing.
What is the function of the CX/TP pin on MAX9240GTM+T?
The CX/TP pin on MAX9240GTM+T is a three-level logic input that auto-detects cable type: high = coax mode, low = STP mode, mid-level = automatic detection. This eliminates manual configuration and ensures correct equalizer and termination settings per physical medium, as specified in Table 8 and Section "Cable Type Configuration Input".
MAX9240GTM+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 48-WFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Function:
- Deserializer
- Data Rate:
- 1.5Gbps
- Input Type:
- CML
- Output Type:
- CMOS, LVCMOS
- Number of Inputs:
- 1
- Number of Outputs:
- 28
- Voltage - Supply:
- 1.8V, 3.3V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TQFN (7x7)
MAX9240GTM+T FAQ
1.How can I place an order for MAX9240GTM+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9240GTM+T 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 MAX9240GTM+T reliable?
The price and inventory of MAX9240GTM+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9240GTM+T is usually 5 days.
3.What payment methods are accepted for MAX9240GTM+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9240GTM+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9240GTM+T?
MAX9240GTM+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9240GTM+T 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 MAX9240GTM+T?
For technical support, including MAX9240GTM+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9240GTM+T requirements.
6.How does Aetrix verify that MAX9240GTM+T is sourced from the original manufacturer or authorized distributors?
All MAX9240GTM+T 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 MAX9240GTM+T meets industry standards.
7.What is the process for return or replacement of MAX9240GTM+T?
All MAX9240GTM+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX9240GTM+T, 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 MAX9240GTM+T part is unused and in its original packaging.
Return procedure for MAX9240GTM+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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