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MAX3667ECJ

更新时间: 2024-11-28 22:19:55
品牌 Logo 应用领域
美信 - MAXIM 驱动器功率控制
页数 文件大小 规格书
12页 140K
描述
+3.3V, 622Mbps SDH/SONET Laser Driver with Automatic Power Control

MAX3667ECJ 数据手册

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19-1311; Rev 1; 3/98  
+3 .3 V, 6 2 2 Mb p s S DH/S ONET La s e r Drive r  
w it h Au t o m a t ic P o w e r Co n t ro l  
MAX367  
________________Ge n e ra l De s c rip t io n  
____________________________Fe a t u re s  
Single +3.3V or +5.0V Operation  
The MAX3667 is a complete, +3.3V laser driver with  
a utoma tic powe r c ontrol (APC), d e signe d for SDH/  
SONET applications up to 622Mbps. It accepts differ-  
ential PECL inputs, provides single-ended bias and  
mod ula tion c urre nts, a nd ope ra te s ove r a -40°C to  
+85°C temperature range.  
Automatic Average Power Control  
Bias Current and Modulation Current Monitor  
Outputs  
TTL-Compatible Disable Input  
Temperature-Compensated Reference  
PECL-Compatible Data Inputs  
A temperature-stabilized reference voltage simplifies  
laser current programming. It allows external program-  
ming of the modulation current between 5mAp-p and  
60mAp-p, and of the bias current between 5mA and  
90mA.  
The APC function, which incorporates a monitor photo-  
diode, an external resistor, and two external capacitors,  
maintains constant laser output power. Two current  
monitors provide high-speed signals that are directly  
p rop ortiona l to the b ia s a nd mod ula tion c urre nts .  
Additional features include disable/enable control and  
a slow-start feature with a minimum turn-on time of  
50ns. The MAX3667 is available in die form and in a  
32-pin TQFP package.  
_______________Ord e rin g In fo rm a t io n  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
32 TQFP  
MAX3667ECJ  
MAX3667E/D  
Dice*  
*Dice are designed to operate from -40°C to +85°C but are  
tested and guaranteed only at T = +25°C.  
j
________________________Ap p lic a t io n s  
622Mbps SDH/SONET Access Nodes  
Laser Driver Transmitters  
Section Repeaters  
Pin Configuration appears at end of data sheet.  
____________________________________________________Typ ic a l Op e ra t in g Circ u it  
+3.3V  
0.1µF  
MONITOR  
DIODE  
LASER  
DIODE  
50Ω  
+3.3V  
C
COMP  
1µF  
0.1µF  
COMP  
BIASMON  
MODMON  
APCSET  
V
CC  
R
4.7Ω  
MD  
DAMP  
1µF  
IMOD  
130Ω  
130Ω  
MAX3691  
R
FILT  
22Ω  
IN+  
IN-  
MAX3667  
BIASSET  
4:1  
SERIALIZER  
WITH  
0.01µF  
470nH  
PECL  
82Ω  
CLOCK GEN  
82Ω  
IBIAS  
GND DISABLE MODSET  
APC  
100Ω  
C
APC  
1nF  
________________________________________________________________ Maxim Integrated Products  
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.  
For small orders, phone 408-737-7600 ext. 3468.  

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