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Description

Request Full Data Sheet The DS1861 is a laser-driver control IC designed to reduce the production cost of fiber optics circuits by eliminating multiple temperature tests. It works with nearly all laser-driver ICs to provide automatic power control (APC) and automatic extinction ratio control (AERC), which improves the performance of the system over temperature and aging. It also has built-in monitoring capability to provide early fault detection, which can be configured to latch the IC into a shutdown condition. Settings programmed into the DS1861 are stored in password-protected EEPROM memory, which writeprotects calibration data. Programming is accomplished through an I²C-compatible interface, which can also be used to read diagnostic information.

Key Features		Applications/Uses
Automatic Power Control (APC) Automatic Extinction Ratio Control (AERC) Across Temperature and Laser Aging Works in AC-Coupled Laser Systems Configurable Latched Automatic Shutdown with Tx-Fault and Tx-Disable Programmable Fast Alarm Conditions I²C-Compatible Serial Interface Allows Up to Eight Devices on the Same Serial Bus Operates Over Wide Supply-Voltage Range Nonvolatile Memory for Device Settings Small, 14-Pin TSSOP Package -40°C to +95°C Operating Temperature Range		Optical Transceivers Optical Transponders

Diagram

Typical Operating Circuit

Evaluation Kits

none

Reliability Reports

Reliability Report: DS1861.pdf

Software/Models

none

Ordering Information
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. More: SeeFull Data Sheet or Part 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.
Devices: 1-2 of 2
DS1861	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1861B+			CSBGA;16 pin;16 mm² Outline Drawing: 21-0355 (PDF) Land Pattern: Not Available Use pkgcode/variation: X16+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1861E+			TSSOP;14 pin;33 mm² Outline Drawing: 21-0066 (PDF) Land Pattern: 90-0113 (PDF) Use pkgcode/variation: U14+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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Technical Documents

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Description   Key Features   Applications/Uses   Key Specifications   Diagram

Data Sheet   Application Notes   Design Guides   Engineering Journals   Reliability Reports   Software/Models   Evaluation Kits

Price and Availability   Samples   Buy Online   Package Information   Lead-Free Information

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