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Analog Devices Inc./Maxim Integrated MAX9259GCB/V+
- Part No.:
- MAX9259GCB/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Serializers, Deserializers
- Package:
- 64-TQFP Exposed Pad
- Datasheet:
-
MAX9259GCB/V+.pdf
- Description:
- IC SERIALIZER GMSL 64TQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MAX9259GCB/V+ from Maxim Integrated is a gigabit multimedia serializer IC for automotive video links, supporting up to 3.125Gbps serial bit rate, XGA (1280×768) or dual-WVGA display resolution, and embedded full-duplex UART/I²C control channel up to 1Mbps over shielded twisted-pair cable. It operates from 1.8V core and 1.8–3.3V I/O supplies in a 64-pin TQFP-EP package, qualified per AEC-Q100 for -40°C to +105°C automotive environments.
For engineers reviewing the MAX9259GCB/V+ datasheet, MAX9259GCB/V+ pinout, MAX9259GCB/V+ application, or MAX9259GCB/V+ equivalent, key selection criteria include serial link EMI reduction via programmable spread spectrum, preemphasis/deemphasis for 15m STP reach, integrated PRBS BER tester, ISO 10605/IEC 61000-4-2 ESD protection, and support for I²S audio up to 192kHz/32-bit.
Technical Context
The MAX9259GCB/V+ implements a CML-based serializer with PLL-based clock recovery and programmable preemphasis (0x00–0x0F settings) to compensate for high-frequency loss on long STP cables. Its differential output driver supports 300–500mVP-P VOD with ±15mV matching and internal 45–63Ω termination to AVDD.
It embeds a full-duplex UART control channel (100kbps–1Mbps) operating over the same physical link as video/audio, enabling bidirectional peripheral access (e.g., remote I²C devices). The control channel uses reverse-direction differential signaling (IN+/IN− on MAX9260 side) with 40–90mV differential input thresholds and supports line-fault detection via LMN0/LMN1 inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Serial Bit Rate | Up to 3.125Gbps - enables transmission of XGA (1280×768) video at 60Hz with 24-bit color over 15m STP cable. |
| Pixel Clock Range | 6.25MHz to 104MHz - supports QVGA through XGA resolutions and dual-view WVGA configurations. |
| I²S Audio Support | Up to 192kHz sample rate, 32-bit word length - delivers high-fidelity audio synchronized with video streams. |
| Control Channel Speed | 100kbps to 1Mbps UART - allows real-time configuration and status polling of remote peripherals without separate wiring. |
| Differential Output VOD | 300–500mVP-P (preemphasis off) - meets CML voltage compliance for robust noise immunity on automotive harnesses. |
| ESD Protection | ±10kV contact / ±25kV air (ISO 10605), ±10kV contact (IEC 61000-4-2) - ensures reliability in harsh automotive ESD environments. |
| Operating Temperature | -40°C to +105°C - fully qualified for under-hood and infotainment head-unit deployment per AEC-Q100 Grade 2. |
Pinout & Package
The MAX9259GCB/V+ is housed in a 64-pin TQFP package (10mm × 10mm × 1mm) with exposed pad (EP) connected internally to AGND. Thermal resistance is 31.9°C/W (junction-to-ambient), requiring EP soldering to AGND plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DIN0–DIN28 | Parallel data inputs | 29-bit wide bus; DIN0–DIN20 used in 24-bit mode (RGB + SYNC), DIN0–DIN28 in 32-bit mode (adds two auxiliary signals). |
| PCLKIN | Parallel clock input | Latches parallel data and serves as PLL reference; supports 6.25–104MHz with 35–65% duty cycle. |
| OUT+, OUT- | Differential CML serial outputs | Drive shielded twisted-pair; VOD programmable 300–500mVP-P; internal 45–63Ω termination to AVDD. |
| RX/SDA, TX/SCL | UART Rx / I²C SDA & UART Tx / I²C SCL | Open-drain I/O with 30kΩ internal pullup; supports full-duplex control channel up to 1Mbps. |
| LMN0, LMN1 | Line-fault monitor inputs | Detect short-to-battery (≥2.47V), open (≥1.45V), or short-to-GND (≤0.3V) on STP cable. |
| INT | Interrupt output | Active-low open-drain signal toggled by remote MAX9260 to request host attention or indicate error conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable spread spectrum | Reduces peak EMI emissions by spreading serial output energy across 0.5%, 2%, or 4% bandwidth - eliminates need for external shielding in many automotive harnesses. |
| Built-in PRBS BER tester | Enables in-system link integrity validation without external test equipment - critical for production line testing and field diagnostics. |
| Preemphasis/deemphasis tuning | 16-level preemphasis (0x00–0x0F) and deserializer equalization allow optimization for cable lengths from 1m to 15m at full 3.125Gbps rate. |
| Embedded full-duplex control channel | Eliminates separate control wiring by multiplexing UART/I²C traffic bidirectionally over same STP pair - reduces connector count and system cost. |
| Line-fault detection with LMN inputs | Monitors STP cable health in real time using two dedicated analog inputs - detects opens, shorts-to-battery, and shorts-to-ground per ISO 11898-2 guidelines. |
Applications
| High-Resolution Automotive Navigation | Rear-Seat Infotainment |
|---|---|
Use Scenario: Central display unit transmitting navigation video and touch feedback to dashboard-mounted LCD. IC Role / Device Role / Timing Role: Serializer converting parallel RGB + SYNC + touch data into serialized stream for low-emission transmission over 8–12m STP harness. Use Value: Enables 1280×768 @ 60Hz display with <1µs video-audio skew and real-time I²C access to touch controller via embedded control channel. | Use Scenario: Head-unit sending dual independent video streams to left/right rear-seat displays. IC Role / Device Role / Timing Role: Configured in 32-bit mode to carry dual-WVGA (2×854×480) with embedded audio and remote backlight control. Use Value: Achieves dual-view timing synchronization within 4×tWS (≤4µs) while maintaining 1Mbps UART control for seat motor and media buttons. |
| Megapixel Camera Systems | Advanced Driver Assistance Systems (ADAS) |
Use Scenario: Front-facing 1.3MP camera module transmitting raw image data to ADAS ECU. IC Role / Device Role / Timing Role: Serializer capturing MIPI CSI-2 output (converted to parallel) and transmitting over 5–10m STP with PRBS BER validation. Use Value: Supports 104MHz pixel clock for 720p@60fps with built-in jitter attenuation (bypass PLL option) and ±10kV ESD protection on serial outputs. | Use Scenario: Radar processor communicating with front camera and surround-view ECUs via daisy-chained serial links. IC Role / Device Role / Timing Role: Used in multi-drop topology with MAX9260 deserializers to distribute timing-critical sensor fusion data. Use Value: Provides deterministic latency (270–2830 bits depending on spread spectrum setting) and lock time <3.5ms for rapid system wake-up from sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar gigabit serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9275GTJ/V+ | Higher 4.0Gbps max bit rate; supports 1080p60; includes integrated HDCP engine and enhanced security features. | Targeted for premium infotainment with content protection requirements; not AEC-Q100 certified for all variants. | Select when 1080p resolution, HDCP, or higher bandwidth is required; verify thermal derating for 56-pin TQFN package. |
| DS90UB953TRGCRQ1 | FPGA-configurable serializer; supports FPD-Link III protocol; lower 3.0Gbps max rate; different register map and initialization sequence. | Designed for TI ecosystem integration; requires companion deserializer DS90UB954; no built-in PRBS tester. | Choose for TI-based platforms or where FPD-Link III compatibility is mandatory; expect layout and firmware rework vs. MAX9259GCB/V+. |
Compared with MAX9275GTJ/V+ and DS90UB953TRGCRQ1, the MAX9259GCB/V+ offers optimal balance of XGA support, automotive qualification, integrated diagnostics, and proven STP reach - making it ideal for cost-sensitive navigation and rear-seat systems where 3.125Gbps suffices and AEC-Q100 Grade 2 compliance is mandatory.
Availability
MAX9259GCB/V+ is available at Aetrix Electronics and suitable for high-resolution automotive navigation, rear-seat infotainment, and megapixel camera systems requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for MAX9259GCB/V+ 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 MAX9259GCB/V+ belongs to Maxim's Gigabit Multimedia Serial Link product line, engineered specifically for EMI-conscious, safety-critical automotive video transmission with integrated diagnostics and robust cable drive capability.
FAQ
What is the maximum supported cable length for MAX9259GCB/V+ at full 3.125Gbps data rate?
The MAX9259GCB/V+ supports up to 15m of shielded twisted-pair (STP) cable at 3.125Gbps when configured with optimal preemphasis (e.g., 3.3dB setting) and deserializer equalization. This is validated for BER <10⁻⁹ and confirmed in the datasheet's "Maximum PCLKIN Frequency vs. STP Cable Length" plot (Figure toc12), where 104MHz pixel clock (equivalent to 3.125Gbps) is achievable at 15m with proper PE/EQ tuning.
Does MAX9259GCB/V+ support both I²C and UART protocols on its control channel?
Yes, the MAX9259GCB/V+ supports both I²C and UART protocols on its RX/SDA and TX/SCL pins. Configuration is determined by the MS (Mode Select) and CDS (Control-Direction Selection) pins: MS = low selects base mode (UART), MS = high selects bypass mode (I²C); CDS sets whether the host microcontroller resides on the MAX9259 or MAX9260 side. Both protocols operate over the same full-duplex differential control channel at rates from 100kbps to 1Mbps.
What power supply voltages are required for MAX9259GCB/V+ operation?
The MAX9259GCB/V+ requires three distinct supply rails: AVDD = 1.7V to 1.9V (analog core, typically 1.8V), DVDD = 1.7V to 1.9V (digital core, typically 1.8V), and IOVDD = 1.7V to 3.6V (I/O interface, configurable for 1.8V or 3.3V logic). All supplies must be independently bypassed with 0.1µF and 0.001µF capacitors placed close to the respective pins, as specified in the MAX9259GCB/V+ pin description and layout guidelines.
How does the line-fault detection feature work on MAX9259GCB/V+?
The MAX9259GCB/V+ uses two dedicated analog inputs - LMN0 and LMN1 - to monitor STP cable health. Each input detects three states: short-to-GND (≤0.3V), normal (0.57–1.07V), and open/short-to-battery (≥1.45V). These thresholds are defined in Figure 3 of the datasheet. The LFLT pin asserts active-low when either LMN input indicates a fault, providing immediate hardware-level notification without software polling - essential for fail-safe automotive systems.
Is MAX9259GCB/V+ pin-compatible with other devices in the MAX9259/MAX9260 family?
Yes, the MAX9259GCB/V+ is pin-compatible with other 64-pin TQFP variants in the MAX9259 family, including MAX9259GCB/V+T and MAX9259GTN/V+T (56-pin TQFN). However, pin compatibility is limited to same-package variants: the 64-pin TQFP footprint (GCB suffix) is mechanically and electrically identical across all GCB versions. The 56-pin TQFN (GTN) and QFND (GGN) packages have different pin counts and layouts and are not interchangeable without PCB redesign.
MAX9259GCB/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 64-TQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Function:
- Serializer
- Data Rate:
- 2.5Gbps
- Input Type:
- CML
- Output Type:
- CML
- Number of Inputs:
- 30
- Number of Outputs:
- 1
- Voltage - Supply:
- 1.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-TQFP-EP (10x10)
MAX9259GCB/V+ FAQ
1.How can I place an order for MAX9259GCB/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9259GCB/V+ 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 MAX9259GCB/V+ reliable?
The price and inventory of MAX9259GCB/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9259GCB/V+ is usually 5 days.
3.What payment methods are accepted for MAX9259GCB/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9259GCB/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9259GCB/V+?
MAX9259GCB/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9259GCB/V+ 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 MAX9259GCB/V+?
For technical support, including MAX9259GCB/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9259GCB/V+ requirements.
6.How does Aetrix verify that MAX9259GCB/V+ is sourced from the original manufacturer or authorized distributors?
All MAX9259GCB/V+ 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 MAX9259GCB/V+ meets industry standards.
7.What is the process for return or replacement of MAX9259GCB/V+?
All MAX9259GCB/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9259GCB/V+, 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 MAX9259GCB/V+ part is unused and in its original packaging.
Return procedure for MAX9259GCB/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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