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Analog Devices Inc./Maxim Integrated MAX9209EUM+
- Part No.:
- MAX9209EUM+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Serializers, Deserializers
- Package:
- -
- Datasheet:
-
MAX9209EUM+.pdf
- Description:
- IC SERIALIZER PROG 48-TSSOP
- Quantity:
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Inventory:12,017
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Product details
Overview
MAX9209EUM+ from Maxim Integrated is a programmable DC-balanced 21-bit parallel-to-LVDS serializer with three data channels and one LVDS clock output, operating at 8–34MHz (DC-balanced) or 10–40MHz (non-DC-balanced), supporting AC-coupled links in automotive navigation and digital copier systems.
For engineers reviewing the MAX9209EUM+ datasheet, MAX9209EUM+ pinout, MAX9209EUM+ application, or MAX9209EUM+ equivalent, this page delivers verified electrical specs, TSSOP-48 pin mapping, real-world timing behavior, and validated drop-in alternatives for high-reliability serial link design.
Technical Context
The MAX9209EUM+ implements a PLL-based clock generator with no external components required, converting 21 LVTTL/LVCMOS inputs into four LVDS outputs (three data + one clock). Its dual-mode operation-controlled by the DCB/NC pin-enables either 7-bit-per-cycle non-DC-balanced serialization or 9-bit-per-cycle (7 data + 2 balance bits) DC-balanced serialization.
DC-balance coding limits digital sum variation (DSV) to ≤10 on data channels and ≤5 on the clock channel, enabling stable AC-coupling across ground-shifted interfaces. Integrated 110Ω (DC-balanced) or 410Ω (non-DC-balanced) LVDS output resistors eliminate external termination while meeting ANSI TIA/EIA-644, IEC 61000-4-2, and ISO 10605 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Parallel Input Width | 21-bit LVTTL/LVCMOS with 5V tolerance and internal pull-downs - supports direct connection to microcontrollers or FPGAs without level-shifting. |
| LVDS Output Count | Four differential outputs: TxOUT0±, TxOUT1±, TxOUT2±, TxCLK OUT± - enables point-to-point or daisy-chained deserializer topologies. |
| Data Throughput | Up to 595Mbps (85MHz × 7 bits) in non-DC-balanced mode - sufficient for 1080p60 video pixel data over single twisted-pair cable. |
| Supply Voltage | +3.3V nominal (3.0V–3.6V range) with separate VCC, PLL VCC, and LVDS VCC domains - requires independent 0.1µF + 0.001µF bypassing per domain. |
| Operating Temperature | -40°C to +85°C - qualified for under-hood automotive infotainment and industrial printer environments. |
| ESD Robustness | ±8kV contact / ±15kV air (IEC 61000-4-2) on LVDS outputs - eliminates need for external TVS diodes in most board-level ESD designs. |
| Power-Down Current | ≤50µA when PWRDWN = low - enables rapid system-level power gating without firmware intervention. |
Pinout & Package
MAX9209EUM+ is housed in a lead(Pb)-free, RoHS-compliant 48-pin TSSOP package (JEDEC MO-153, 10.2mm × 6.2mm × 1.2mm), with exposed thermal pad not present (TQFN variant MAX9213ETM+ includes EP).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1,3,4,44,45,47,48 | TxIN0–TxIN6 | Channel 0 data inputs; 5V-tolerant, internally pulled down - safe for unconnected or floating inputs during boot. |
| 2,8,14,21 | VCC | Digital core supply; must be decoupled locally with 0.1µF + 0.001µF ceramics - noise on this rail directly impacts setup/hold margins. |
| 26 | TxCLK IN | Parallel rate clock input; 5V-tolerant, internally pulled down - accepts 10–40MHz (non-DC) or 8–34MHz (DC) square waves with ≤4ns transition time. |
| 27 | PWRDWN | Active-low power-down control; forces LVDS outputs to high-Z and disables PLL - used for hot-plug detection or sleep-state entry. |
| 32,33 | TxCLK OUT+, TxCLK OUT- | Differential clock output; meets ANSI TIA/EIA-644 with 250–450mV swing - provides synchronous timing reference to MAX9210/MAX9214 deserializers. |
| 34–41 | TxOUT2+/-, TxOUT1+/-, TxOUT0+/- | Three 21-bit data channel outputs; each pair carries 7 serialized bits per clock cycle - routed as controlled-impedance differential pairs (100Ω target). |
| 43 | DCB/NC | DC-balance mode select; tied high for DC-balanced (8–34MHz), low for non-DC-balanced (10–40MHz) - determines output resistor value (110Ω vs 410Ω) and bit encoding. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable DC-balance mode | Selectable via DCB/NC pin to enable AC-coupling for ground-shift tolerance up to capacitor voltage rating - critical for long-cable automotive displays. |
| Integrated LVDS termination | On-die 110Ω (DC-balanced) or 410Ω (non-DC-balanced) resistors - removes four external 100Ω resistors and reduces PCB area and signal reflections. |
| PLL with zero external components | Self-contained frequency multiplication (7× or 9×) locks to TxCLK IN without crystals, capacitors, or loop filters - simplifies BOM and layout. |
| 5V-tolerant parallel inputs | All TxIN_, TxCLK IN, PWRDWN pins accept 0–5.5V logic - interoperates with legacy 5V microcontrollers without level translators. |
| Low-power shutdown | Reduces ICC to ≤50µA while maintaining pin states - enables fast wake-up (<50ns delay) without reinitializing the link. |
Applications
| Automotive Navigation Display Link | Digital Copier Image Data Interface |
|---|---|
Use Scenario: Transmitting high-resolution map graphics from head-unit SoC to TFT LCD display over 2m shielded twisted-pair cable in vehicle cabin. IC Role / Device Role / Timing Role: Serializer converting 21-bit RGB+sync parallel bus into three LVDS data lanes + clock, enabling EMI-robust transmission at 34MHz DC-balanced mode. Use Value: AC-coupling enabled by DC-balance eliminates ground-loop-induced flicker; integrated 110Ω termination ensures clean eye diagrams per IEC 61000-4-2 testing. |
Use Scenario: Moving scanned image data from CIS sensor array to image processor ASIC across rigid-flex PCB in compact desktop copier. IC Role / Device Role / Timing Role: Parallel-to-LVDS bridge providing deterministic latency and jitter <20ps across 40MHz non-DC-balanced link. Use Value: 410Ω output impedance reduces dynamic power by 2.7× vs 110Ω mode; 5V-tolerant inputs interface directly with 5V CIS drivers without level shifters. |
| Laser Printer Engine Control | Industrial HMI Video Backplane |
Use Scenario: Driving laser modulation signals and position feedback from controller to print engine over 10cm FR4 traces inside high-noise motor compartment. IC Role / Device Role / Timing Role: High-immunity serializer delivering precise timing for laser pulse width control using TxCLK OUT± as master sync source. Use Value: ±8kV IEC 61000-4-2 contact ESD rating protects against operator discharge events; -40°C to +85°C operation sustains reliability near stepper motors. |
Use Scenario: Aggregating video streams from multiple camera modules onto centralized display controller in factory-floor HMI panel. IC Role / Device Role / Timing Role: Multi-channel serializer enabling simultaneous 1080p feeds over separate LVDS pairs, synchronized by common TxCLK IN. Use Value: Pin compatibility with DS90CR215 allows drop-in replacement in legacy designs; TSSOP-48 footprint supports automated optical inspection (AOI) and rework. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 21-bit parallel-to-LVDS serializer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DS90CR215MTD | Fixed non-DC-balanced only; no AC-coupling support; requires external 100Ω terminations; 3.3V-only inputs. | Limited to DC-coupled short-reach links (<30cm); unsuitable for ground-shifted automotive or industrial enclosures. | Select when cost sensitivity outweighs EMI robustness needs and existing layout lacks space for coupling capacitors. |
| MAX9213ETM+ | TQFN-48 with exposed pad; higher speed (up to 66MHz DC-balanced / 85MHz non-DC); identical pinout and register map. | Better thermal performance for sustained 85MHz operation; requires reflow profile adjustment for EP soldering. | Choose for new designs needing >34MHz bandwidth or improved power dissipation; compatible with same PCB footprint except thermal pad. |
Compared with DS90CR215MTD, MAX9209EUM+ adds AC-coupling capability and integrated termination at minor cost premium; versus MAX9213ETM+, it trades bandwidth and thermal headroom for mature TSSOP manufacturability and broader distributor stock.
Availability
MAX9209EUM+ is available at Aetrix Electronics and suitable for automotive navigation systems, digital copiers, and laser printers requiring stable component supply with full RoHS compliance and traceable lot history.
Supply support for MAX9209EUM+ 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for demanding industrial and automotive applications.
The MAX9209EUM+ belongs to Maxim's high-speed serializer product line, designed specifically for noise-immune, ground-shift-tolerant video and imaging data transport in safety-critical and EMI-hostile environments.
FAQ
What is the maximum parallel clock frequency supported by MAX9209EUM+ in DC-balanced mode?
The MAX9209EUM+ supports a maximum parallel clock frequency of 34MHz in DC-balanced mode. This yields a serial data rate of 34MHz × 9 bits = 306Mbps per LVDS lane. Operation above 34MHz in DC-balanced mode is not guaranteed and may violate timing margins or DSV limits specified in the datasheet.
Can MAX9209EUM+ interface directly with 5V microcontrollers without level shifters?
Yes, MAX9209EUM+ features 5V-tolerant LVTTL/LVCMOS inputs on all parallel data (TxIN0–TxIN20), clock (TxCLK IN), and control (PWRDWN) pins. These inputs operate safely with logic-high voltages up to 5.5V and include internal pull-down resistors, enabling direct connection to 5V MCU GPIOs without external level translation circuitry.
How does the DCB/NC pin affect MAX9209EUM+ output impedance and data encoding?
When DCB/NC is high (or open), MAX9209EUM+ operates in DC-balanced mode with 110Ω differential output resistance and appends two balance bits per 7-bit word. When DCB/NC is low, it operates in non-DC-balanced mode with 410Ω output resistance and transmits raw 7-bit words - enabling pin-compatible use with DS90CR215/DS90CR217.
Is MAX9209EUM+ pin-compatible with MAX9213ETM+?
Yes, MAX9209EUM+ (TSSOP-48) and MAX9213ETM+ (TQFN-48) share identical pin numbering, function assignment, and logic behavior. The only physical differences are package type (TSSOP vs TQFN), presence of an exposed thermal pad (TQFN only), and extended frequency range in the MAX9213ETM+ variant.
What is the purpose of the PLL GND and PLL VCC pins on MAX9209EUM+?
The PLL GND (pins 28,30) and PLL VCC (pin 29) pins provide dedicated power and ground routing for the internal phase-locked loop circuitry. Separating PLL supplies minimizes switching noise coupling into the sensitive analog PLL core, ensuring low-jitter clock generation and reliable lock acquisition across temperature and voltage variations.
MAX9209EUM+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- -
- Data Rate:
- -
- Input Type:
- -
- Output Type:
- -
- Number of Inputs:
- -
- Number of Outputs:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX9209EUM+ FAQ
1.How can I place an order for MAX9209EUM+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX9209EUM+ 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 MAX9209EUM+ reliable?
The price and inventory of MAX9209EUM+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX9209EUM+ is usually 5 days.
3.What payment methods are accepted for MAX9209EUM+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX9209EUM+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX9209EUM+?
MAX9209EUM+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX9209EUM+ 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 MAX9209EUM+?
For technical support, including MAX9209EUM+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX9209EUM+ requirements.
6.How does Aetrix verify that MAX9209EUM+ is sourced from the original manufacturer or authorized distributors?
All MAX9209EUM+ 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 MAX9209EUM+ meets industry standards.
7.What is the process for return or replacement of MAX9209EUM+?
All MAX9209EUM+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX9209EUM+, 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 MAX9209EUM+ part is unused and in its original packaging.
Return procedure for MAX9209EUM+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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