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Analog Devices Inc./Maxim Integrated MAX3801UGG-T
- Part No.:
- MAX3801UGG-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MAX3801UGG-T.pdf
- Description:
- ADAPTIVE EQUALIZER
- Quantity:
- Payment:
- Shipping:
Inventory:22,500
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Product details
Overview
MAX3801UGG-T from Maxim Integrated is a +3.3V adaptive cable equalizer IC for coaxial and twin-axial point-to-point links, supporting up to 3.2Gbps data rates, providing 0–30dB equalization at 1.6GHz, featuring differential CML I/O, LOS indicator, and CIM output. It extends copper cable reach in high-speed backplane and SDH/SONET interconnects.
For engineers reviewing the MAX3801UGG-T datasheet, MAX3801UGG-T pinout, MAX3801UGG-T application, or MAX3801UGG-T equivalent, key selection criteria include adaptive skin-effect compensation, 125mW power dissipation at +3.3V, 0°C to +85°C operation, integrated input/output terminations, and QFN-24 EP package thermal performance.
Technical Context
The MAX3801UGG-T implements a dual-power-detector feedback loop with 200MHz and 600MHz detectors to dynamically adjust equalization gain based on real-time spectral power ratio. Its architecture integrates CML input/output buffers, flat-response and skin-effect compensation amplifiers, and a current-steering network controlled by variable attenuators.
It supports both differential and single-ended operation (4–30dB effective equalization range at 1.6GHz for single-ended), includes on-chip 50Ω single-ended output impedance and 62.5Ω input impedance, and delivers residual jitter as low as 100mUIP-P under 30dB cable loss at 3.2Gbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 3.2Gbps - enables full-rate operation on SDH/SONET OC-48 and Gigabit Ethernet over extended copper runs. |
| Equalization Range | 0dB to 30dB at 1.6GHz - compensates skin-effect losses in up to 288ft RG59 coax or 115ft Gore-89 cable at 3.2Gbps. |
| Supply Voltage | +3.14V to +3.46V - operates reliably across industrial-grade 3.3V rail tolerances without external regulation. |
| Power Dissipation | 125mW typical at +3.3V - allows dense placement in thermally constrained backplane modules without forced cooling. |
| Input Sensitivity | 650–1100mVP-P differential - accommodates degraded signals after long cable runs while maintaining LOS assertion threshold. |
| Output Swing | 500–1000mVP-P differential - ensures robust CML-level signaling into 50Ω loads with margin for board trace loss. |
| Operating Temp | 0°C to +85°C - qualified for commercial and industrial communications equipment environments. |
Pinout & Package
The MAX3801UGG-T is housed in a 24-pin 4mm × 4mm × 0.9mm QFN package with exposed thermal pad (G2444-1), requiring soldering of the EP pad to PCB ground for electrical integrity and thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 7, 12, 16, 18, 19, 24 | GND | Eight dedicated ground terminals minimize ground inductance and improve high-frequency return path integrity. |
| 2, 4, 8, 11, 17, 20, 23 | VCC | Seven independent +3.3V supply pins reduce power delivery impedance and suppress supply noise coupling. |
| 5, 6 | CIM− / CIM+ | Differential analog current output proportional to applied equalization level; used for real-time cable health monitoring. |
| 9, 10 | EOUT− / EOUT+ | CML differential output pair with 50Ω single-ended output impedance; DC-coupled to VCC via internal 50Ω resistors. |
| 13, 14 | N.C. | No-connect pins - must remain unconnected per design; no internal circuitry attached. |
| 15 | LOS | Active-low open-drain loss-of-signal indicator; asserts low when input falls below ~650mVP-P, enabling link fault detection. |
| 21, 22 | EIN+ / EIN− | CML differential input pair with 62.5Ω single-ended input impedance; accepts degraded signals from long cables. |
| EP | Exposed Pad | Thermal and electrical ground connection - must be soldered to solid PCB ground plane for thermal dissipation and signal reference stability. |
Key Features
| Feature | Design Value |
|---|---|
| Adaptive Equalization | Automatically adjusts 0–30dB gain at 1.6GHz using dual-band (200MHz/600MHz) power detector feedback - eliminates manual tuning across cable lengths. |
| Integrated Terminations | On-chip 50Ω output and 62.5Ω input terminations reduce external component count and preserve signal integrity at 3.2Gbps. |
| Cable Integrity Monitor | Differential CIM output provides analog current proportional to equalization effort - enables real-time diagnostics of cable degradation or connector wear. |
| Loss-of-Signal Detection | LOS output asserts low within microseconds of input dropout - supports fast link recovery and system-level fault isolation in telecom equipment. |
| ESD Protection | Robust HBM ESD rating on all I/O pins - protects against handling and system-level transients in production and field environments. |
Applications
| SDH/SONET Line Cards | Backplane Interconnects |
|---|---|
Use Scenario: Extending OC-48 (2.488Gbps) signal reach over legacy coaxial cabling between line cards in telecom chassis. IC Role / Device Role / Timing Role: Adaptive equalizer restoring high-frequency content lost to skin-effect attenuation in 75Ω RG59 cable runs up to 288ft. Use Value: Enables reuse of existing coax infrastructure without upgrading to fiber, reducing CAPEX while maintaining BER <10−12. | Use Scenario: Compensating insertion loss in FR-4 stripline backplanes connecting FPGA-based processing modules at 3.2Gbps. IC Role / Device Role / Timing Role: High-speed serial link conditioner placed at receiver end to restore eye opening degraded by 15–25dB channel loss. Use Value: Achieves >20% eye height improvement and <100mUIP-P residual jitter, ensuring reliable SerDes lock. |
| Video Surveillance Systems | Industrial Camera Links |
Use Scenario: Transmitting uncompressed HD-SDI video (1.485Gbps) over long-distance coaxial cable in security camera installations. IC Role / Device Role / Timing Role: Adaptive equalizer placed at display/recorder end to recover signal integrity after 300ft RG6 cable run. Use Value: Eliminates pixelation and sync loss by maintaining >15dB SNR margin at receiver input. | Use Scenario: Enabling high-resolution machine vision cameras to interface with frame grabbers over 100ft Category 5e twisted-pair cabling. IC Role / Device Role / Timing Role: Differential equalizer operating in single-ended mode to compensate frequency-dependent loss in unshielded twisted pair. Use Value: Supports 1.25Gbps operation with <0.5dB amplitude ripple across 600MHz bandwidth, preserving image fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adaptive equalizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX3800UTG+ | Same architecture and pinout; supports identical 3.2Gbps rate and 30dB equalization but lacks CIM output. | No cable health monitoring capability; limited to basic link restoration without diagnostics. | Select MAX3800UTG+ only if CIM functionality is unnecessary and cost reduction is prioritized. |
| LMH0384SQ/NOPB | Fixed-gain equalizer (not adaptive); 3Gbps max; requires external control for gain adjustment; different 24-pin WQFN footprint. | Suitable for stable, known-length cable deployments but not dynamic or mixed-cable environments. | Choose LMH0384SQ/NOPB where cable length is fixed and adaptive feedback adds unnecessary complexity. |
Compared with MAX3801UGG-T, MAX3800UTG+ offers identical equalization performance without diagnostic capability, while LMH0384SQ/NOPB trades adaptability for deterministic gain control and lower BOM count - making MAX3801UGG-T optimal for field-deployed systems requiring cable health visibility and automatic compensation.
Availability
MAX3801UGG-T is available at Aetrix Electronics and suitable for SDH/SONET transmission equipment, high-speed backplane interconnects, and industrial video links requiring stable component supply, long-term lifecycle support, and guaranteed lead-free compliance.
Supply support for MAX3801UGG-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 high-speed interface ICs for communications, computing, and industrial applications.
The MAX3801UGG-T belongs to Maxim's high-speed signal conditioning product line, engineered specifically for adaptive equalization of degraded serial data over copper media in telecom and datacom infrastructure.
FAQ
What is the maximum supported data rate for the MAX3801UGG-T?
The MAX3801UGG-T supports a maximum data rate of 3.2Gbps, validated across multiple cable types including RG59 coax, Gore-89, and Category 5e twisted pair. This rate is maintained with ≤30dB skin-effect loss at 1.6GHz, and the device meets jitter specifications (≤200mUIP-P) under worst-case PRBS test conditions. The MAX3801UGG-T achieves this performance using its dual-band power detector feedback loop and CML I/O architecture.
Does the MAX3801UGG-T require external termination resistors?
No, the MAX3801UGG-T integrates on-chip 50Ω single-ended output terminations and 62.5Ω single-ended input terminations, eliminating the need for external resistors in standard CML interface configurations. This reduces PCB area, component count, and potential impedance mismatch errors. The MAX3801UGG-T's internal terminations are optimized for 3.2Gbps operation and maintain return loss >15dB up to 3.2GHz.
How does the Cable Integrity Monitor (CIM) output function in the MAX3801UGG-T?
The CIM output of the MAX3801UGG-T is a differential current source whose magnitude directly reflects the equalizer's real-time gain setting - higher current indicates greater compensation for cable loss. By connecting 100kΩ resistors from CIM+ and CIM− to ground, engineers can measure voltage levels (0.5V to VCC−0.5V) to infer cable degradation. The MAX3801UGG-T's CIM enables predictive maintenance in deployed systems without interrupting data flow.
What is the role of the LOS output in the MAX3801UGG-T?
The LOS (Loss-of-Signal) output in the MAX3801UGG-T is an active-low, open-drain indicator that asserts low when the differential input amplitude drops below ~650mVP-P, signaling loss of valid data. It responds within microseconds and is designed for direct interfacing with FPGA GPIO or microcontroller interrupt inputs. The MAX3801UGG-T's LOS output supports rapid fault isolation in telecom line cards and video distribution systems.
Is the MAX3801UGG-T compatible with single-ended signaling?
Yes, the MAX3801UGG-T supports single-ended operation: connect the unused CML input to ground through a series capacitor and 50Ω resistor. While specified for differential use, single-ended mode delivers 4–30dB effective equalization at 1.6GHz. The MAX3801UGG-T maintains jitter performance and LOS functionality in this configuration, making it suitable for legacy systems with single-ended drivers/receivers.
MAX3801UGG-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- Adaptive Equalizer
- Interface:
- -
- Voltage - Supply:
- 3.14V ~ 3.46V
- Supplier Device Package:
- 24-QFN (4x4)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MAX3801UGG-T FAQ
1.How can I place an order for MAX3801UGG-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3801UGG-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 MAX3801UGG-T reliable?
The price and inventory of MAX3801UGG-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3801UGG-T is usually 5 days.
3.What payment methods are accepted for MAX3801UGG-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3801UGG-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3801UGG-T?
MAX3801UGG-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3801UGG-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 MAX3801UGG-T?
For technical support, including MAX3801UGG-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3801UGG-T requirements.
6.How does Aetrix verify that MAX3801UGG-T is sourced from the original manufacturer or authorized distributors?
All MAX3801UGG-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 MAX3801UGG-T meets industry standards.
7.What is the process for return or replacement of MAX3801UGG-T?
All MAX3801UGG-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX3801UGG-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 MAX3801UGG-T part is unused and in its original packaging.
Return procedure for MAX3801UGG-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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