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Features
- 60ps Rise and Fall Times, 10ps Deterministic Jitter
- 155Mbps to 3.2Gbps Laser Diode Driver for VCSELs
- Eye Diagram is Stable and Consistent Across Modulation Range and Temperature
- 1mA to 12mA Modulation Current
- Easy Board Layout, Laser can be Remotely Located if Desired
- No Input Matching or AC Coupling Components Needed
- On-Chip ADC for Monitoring Critical Parameters
- Digital Setup and Control with I2C™ Serial Interface
- Emulation and Set-Up Software Available
- Operates Standalone or with a Microprocessor
- On-Chip DACs Eliminate External Potentiometers
- Constant Current or Automatic Power Control
- First and Second Order Temperature Compensation
- On-Chip Temperature Sensor
- Extensive Eye Safety Features
- Single 3.3V Supply
- 4mm × 4mm QFN Package
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The LTC5100 is a 3.2Gbps VCSEL driver offering an unprecedented level of integration and high speed performance. The part incorporates a full range of features to ensure consistently outstanding eye diagrams. The data inputs are AC coupled, eliminating the need for external capacitors. The LTC5100 has a precisely controlled 50Ω output that is DC coupled to the laser, allowing arbitrary placement of the IC. No coupling capacitors, ferrite beads or external transistors are needed, simplifying layout, reducing board area and the risk of signal corruption. The unique output stage of the LTC5100 confines the modulation current to the ground system, isolating the high speed signal from the power supply to minimize RFI.
The LTC5100 supports fully automated production with its extensive monitoring and control features. Integrated 10-bit DACs eliminate the need for external potentiometers. An onboard 10-bit ADC provides the laser current and voltage, as well as monitor diode current and temperature. Status information is available from the I2C serial interface for feedback and statistical process control.
An internal digital controller compensates laser temperature drift and provides extensive laser safety features.
Applications
- Gigabit Ethernet and Fibre Channel Transceivers
- SFF and SFP Transceiver Modules
- Proprietary Fiber Optic Links
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LTC5100
Documentation
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Documentation
Data Sheet 1
Reliability Data 1
User Guide 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 |
|---|---|---|---|
| LTC5100EUF#PBF |
16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
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| LTC5100EUF#TRPBF |
16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
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- LTC5100EUF#PBF
- Pin/Package Drawing
-
16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
- Documentation
-
HTML
Material Declaration
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HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- LTC5100EUF#TRPBF
- Pin/Package Drawing
-
16-Lead QFN (4mm x 4mm x 0.75mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Software & Part Ecosystem
Evaluation Kits 1
DC499A
Demo Board for the LTC5100 3.2Gbps VCSEL Driver
Product Detail
The DC499A demonstration board features the LTC5100, a 155Mbps to 3.2Gbps VCSEL* driver offering a high level of integration and high-speed performance. The DC499A board supports data transmission of up to the maximum 3.2Gbps data rate of the LTC5100.
Demonstration software (Python Code) running on a personal computer allows easy access to the rich set of digital control features of the LTC5100. All that is needed is a PC with USB port, Python v2.7 or greater, Python USB COM port support such as USPP package, DC590B controller board, and a 5V power supply.
Note: The demo board manual shows a test configuration using Microsoft Windows XP and a DB-9 COM port. This legacy test configuration is no longer available. For new designs, order the DC499A RF board as shown here. The end user is responsible for the I2C register reads and writes.
Warning: Potential eye safety hazard. See Laser Safety section of Demo Manual for details.
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