MAX3669
NOT RECOMMENDED FOR NEW DESIGNS+3.3V, 622Mbps SDH/SONET Laser Driver with Current Monitors and APC
Low-Power, Full-Featured 622Mbps Laser Driver
- Part Models
- 3
- 1ku List Price
- price unavailable
Overview
- +3.3V or +5.0V Single-Supply Operation
- 40mA Supply Current at +3.3V
- Programmable Bias Current from 1mA to 80mA
- Programmable Modulation Current from 5mA to 75mA
- Bias Current and Modulation Current Monitors
- 200ps Rise/Fall Time
- Automatic Average Power Control with Failure Monitor
- Complies with ANSI, ITU, and Bellcore SONET/SDH Specifications
- Enable Control
The MAX3669 is a complete, +3.3V laser driver with automatic power control (APC) circuitry for SDH/SONET applications up to 622Mbps. It accepts differential PECL inputs, provides bias and modulation currents, and operates over a temperature range from -40°C to +85°C.
An APC feedback loop is incorporated to maintain a constant average optical power over temperature and lifetime. The wide modulation current range from 5mA to 75mA and bias current of 1mA to 80mA are easy to program, making this product ideal for use in various SDH/SONET applications. Two pins are provided to monitor the current levels in the laser: BIASMON with current proportional to laser bias current, and MODMON with current proportional to laser modulation.
The MAX3669 also provides enable control and a failure-monitor output to indicate when the APC loop is unable to maintain the average optical power. The MAX3669 is available in 4mm x 4mm 24-pin thin QFN and 5mm x 5mm 32-pin TQFP packages.
Applications
- 622Mbps SDH/SONET Access Nodes
- Laser Driver Transmitters
- Section Regenerators
Documentation
Data Sheet 1
Application Note 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| MAX3669EHJ+ | TQFP | ||
| MAX3669ETG+ | LFCSP | ||
| MAX3669ETG+T | LFCSP |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Interface Transceivers 1 | ||
| MAX3690 | Obsolete | +3.3V, 622Mbps SDH/SONET 8:1 Serializer with Clock Synthesis and TTL Inputs |
| Interface Transmitters 1 | ||
| MAX3668 | Obsolete | +3.3V, 622Mbps SDH/SONET Laser Driver with Automatic Power Control |
| Serializer/Deserializer (SerDes) & Gigabit Multimedia Serial Link (GMSL) 1 | ||
| MAX3693 | Obsolete | +3.3V, 622Mbps SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs |
Evaluation Kits
Evaluation Kit for the MAX3669
Evaluation Kit for the MAX3669ETG
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