Datasheet > SML2108

SML2108

更新时间： 2024-09-25 04:03:47

品牌	Logo	应用领域
SUMMIT		二极管激光二极管功率控制控制器
页数	文件大小	规格书
21页	452K
描述
Laser Diode Adaptive Power Controller

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SML2108 数据手册

SUMMIT

SML2108

MICROELECTRONICS, Inc.

Laser Diode Adaptive Power Controller

PRELIMINARY

FEATURES

DESCRIPTION

! Integrated Bias Current Monitor

The SML2108 is an adaptive power controller for laser

diodes. It is the industry's first integrated device that can

directlymonitorandmeasurealaserdiode'stemperature,

and provide a variable modulation current. The

SML2108's integrated active feedback loop is used to

calibrate and control the mean and modulation power of

high speed, high power laser diodes.

" Monitors & Measures Laser Temperature

Directly

" Eliminates Need for External Thermistor &

Thermal Coupling Issues

" Alarm Output on Over-temperature Condition

! Adaptive Modulation Control (AMC)

Inherentmanufacturingtolerancesintroducevariationsof

performanceinlaserdiodes. Thesevariations, combined

with parametric changes over the laser’s extreme tem-

perature range and laser ageing, call for an efficient

temperature compensation scheme. Using an internal

digital control loop and a programmable nonvolatile com-

pensation lookup table, the SML2108 provides the most

optimum adaptive power control with a minimum number

of external components.

" Adjusts Modulation Current as a Function of

the Laser Temperature

" 8 × 8 Programmable Compensation Table

" 256 Independent Compensation Values

" Integrated 8-Bit Modulation Control DAC

! Flexible Biasing Architecture

" Bias Control and Modulation Control:

0 to 10mA / 0 to 100 mA Source,

0 to 100mA Sink

The SML2108 removes the need for any manual calibra-

tion of the laser control circuit, which is currently the

industry standard practice. All calibration values are

programmedthroughthe2-wirecommunicationinterface,

which can be controlled by most production ATE equip-

ment.

! Automatic Power Control (APC) with Integrated

10-Bit Programmable Offset

" Automatic Initial Bias Optimization

! Electronic Calibration Through 2-wire Interface

! 3V or 5V Operation

Programming of configuration, control and calibration

values by the user can be simplified with the interface

adapterandWindowsGUIsoftwareobtainablefromSum-

mit Microelectronics.

The SML2108 is available in 48 lead TQFP.

SIMPLIFIED APPLICATION DIAGRAM

LASER

DIODE

MONITOR

DIODE

IN+

LASER

MODULATION

DRIVER

IMOD

IN–

MODSET

MODN

BIASN

AUTOMON

SML2108

SDA

SCL

DETECT

Interface

2053 SAD 1.0

Characteristics subject to change without notice

•

300 Orchard City Dr., Suite 131

•

Campbell, CA 95008

•

Phone 408-378-6461 • FAX 408-378-6586 • www.summitmicro.com

2053 2.2 11/07/00

12 3 4 5 6 7...21

中文翻译

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与SML2108相关器件

型号	品牌	获取价格	描述	数据表
SML2108F	SUMMIT	获取价格	Laser Diode Adaptive Power Controller
SML-210DT	ROHM	获取价格	Small, chip LEDs
SML-210DTT86	ROHM	获取价格	Nomal type and Low current type line-up.
SML-210DTT86J	ROHM	获取价格	Single Color LED, Orange, Colorless Transparent, 1.25mm, 2 X 1.25 MM, 0.80 MM HEIGHT, MINI
SML-210DTT86K	ROHM	获取价格	Single Color LED, Orange, Colorless Transparent, 1.25mm, 2 X 1.25 MM, 0.80 MM HEIGHT, MINI
SML-210DTT86L	ROHM	获取价格	Single Color LED, Orange, Colorless Transparent, 1.25mm, 2 X 1.25 MM, 0.80 MM HEIGHT, MINI
SML-210DTT86M	ROHM	获取价格	Single Color LED, Orange, Colorless Transparent, 1.25mm, 2 X 1.25 MM, 0.80 MM HEIGHT, MINI
SML-210DTT87	ROHM	获取价格	Single Color LED, Orange, Transparent Clear, 1.4mm
SML-210FT	ROHM	获取价格	Small, chip LEDs
SML-210FTT86H	ROHM	获取价格	Single Color LED, Green, Transparence Clear, 1.2mm

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