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MAX3668
+3.3V, 622Mbps SDH/SONET Laser Driver with Automatic Power Control
Lowest-Power 622Mbps Laser Driver
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Status
Active: In Production.
Description
The MAX3668 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 of -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 of 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.
The MAX3668 also provides enable control and a failure-monitor output to indicate when the APC loop is unable to maintain the average optical power. The MAX3668 is available in a 5mm 32-pin TQFP package as well as in dice.
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Data Sheet
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An evaluation kit is available: MAX3668EVKIT
Key Features
- Single +3.3V or +5.0V Operation
- 38mA Supply Current at +3.3V
- Programmable Modulation Current from 5mA to 75mA
- Programmable Bias Current from 1mA to 80mA
- Rise/Fall Time < 200ps
- Automatic Average Power Control with Failure Monitor
- Complies with ANSI, ITU, and Bellcore SONET/SDH Specifications
- Enable Control
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Applications/Uses
- 622Mbps SDH/SONET Access Nodes
- Laser Driver Transmitters
- Section Regenerators
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Key Specifications:
| Laser Drivers |
| Part Number |
Target Oper. Range
(Gbps) |
Data Rate
(Mbps) |
Data Rate
(Mbps) |
VSUPPLY
(V) |
ICC
(mA) |
I/O Type |
IMOD
(mA) |
IBIAS
(mA) |
EV Kit |
Package/Pins |
Budgetary Price |
| min |
max |
typ |
max |
max |
See Notes |
| MAX3668 |
<1 |
155 |
622 |
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38 |
PECL |
75 |
80 |
Yes |
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$5.36 @1k |
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See All Laser Drivers (24)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Application Notes
Reliability Reports
Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX3668E/D
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Active |
DICE SALES;NA pin;DICE;
Land Pattern: Not Applicable
Use pkgcode/variation: DICE12*
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See data sheet
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| MAX3668EHJ
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32-2F*
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-40°C to +85°C
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See data sheet
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| MAX3668EHJ+
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32+2F*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX3668EHJ+T
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Active |
TQFP;32 pin;51.8 mm²
Outline Drawing:21-0110 (PDF)
Land Pattern: 90-0149 (PDF)
Use pkgcode/variation: H32+2F*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX3668EHJ-T
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Active |
TQFP;32 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Similar Products by Function
| MAX3690 |
+3.3V, 622Mbps SDH/SONET 8:1 Serializer with Clock Synthesis and TTL Inputs |
| MAX3693 |
+3.3V, 622Mbps SDH/SONET 4:1 Serializer with Clock Synthesis and LVDS Inputs |
| MAX3669 |
+3.3V, 622Mbps SDH/SONET Laser Driver with Current Monitors and APC |
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Evaluation Kits
Products with Similar Part Numbers
Didn't Find What You Need?
Information Index
Document Ref.: 19-4799
Rev 4;
2005-03-16
This page last modified: 2010-05-06
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