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MAX3261CCJ+T

Description
Interface Circuit, PQFP32, TQFP-32
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size392KB,12 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance  
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MAX3261CCJ+T Overview

Interface Circuit, PQFP32, TQFP-32

MAX3261CCJ+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeQFP
package instructionTFQFP,
Contacts32
Reach Compliance Codecompliant
Interface integrated circuit typeINTERFACE CIRCUIT
JESD-30 codeS-PQFP-G32
JESD-609 codee3
length5 mm
Humidity sensitivity level1
Number of functions1
Number of terminals32
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeTFQFP
Package shapeSQUARE
Package formFLATPACK, THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height1.2 mm
Maximum supply voltage5.25 V
Minimum supply voltage4.75 V
Nominal supply voltage5 V
surface mountYES
Temperature levelCOMMERCIAL
Terminal surfaceMATTE TIN
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width5 mm
19-0323; Rev 5; 5/01
Single +5V, Fully Integrated,
1.25Gbps Laser Diode Driver
_______________General Description
The MAX3261 is a complete, easy-to-program, single
+5V-powered, 1.25Gbps laser diode driver with com-
plementary enable inputs and automatic power control
(APC). The MAX3261 accepts differential PECL inputs
and provides complementary output currents. A tem-
perature-stabilized reference voltage is provided to
simplify laser current programming. This allows modu-
lation current to be programmed up to 30mA and bias
current to be programmed up to 60mA with two exter-
nal resistors.
Complementary enable inputs allow the MAX3261 to
interface with open-fiber-control architecture—a feature
not found in other 1.25Gbps laser diode drivers.
An APC circuit is provided to maintain constant laser power
in transmitters that use a monitor photodiode. Only two
external components are required to implement the APC
function.
The MAX3261’s fully integrated feature set includes a
TTL-compatible laser failure indicator and a program-
mable slow-start circuit to prevent laser damage. The
slow-start is preset to 50ns and can be extended by
adding an external capacitor.
____________________________Features
o
Rise Times Less than 250ps
o
Differential PECL Inputs
o
Single +5V Supply
o
Automatic Power Control
o
Temperature-Compensated Reference Voltage
o
Complementary Enable Inputs
MAX3261
______________Ordering Information
PART
MAX3261CCJ
MAX3261ECJ
MAX3261E/D
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
32 TQFP
32 TQFP
Dice*
*Dice
are designed to operate over a -40°C to +140°C junction
temperature (Tj) range. Tested and guaranteed at Tj = +25°C.
________________________Applications
Laser Diode Transmitters
531Mbps and 1062Mbps Fibre Channel
622Mbps SDH/SONET
Gigabit Ethernet
__________Typical Operating Circuit
+5V
+5V
V
CC
A V
CC
B
VIN+
PECL
INPUTS
VIN-
GND A
GND B
ENB+
TO OPEN
FIBER
CONTROL
OUT+
+5V
__________________Pin Configuration
V
CC
A
V
CC
A
V
CC
A
GNDA
OUT+
GNDA
OUT-
GNDA
TOP VIEW
PHOTO-
DIODE
LASER
MAX3261
IPIN
32
31
30
29
28
27
26
25
IBIASOUT
ENB-
SLWSTRT
VREF1
VREF2
OUT-
FAILOUT
IBIASFB
Z
O
= 25Ω
MICROSTRIP
2.7k
+5V
GNDA
GNDA
IPIN
SLWSTRT
GNDB
VREF2
IPINSET
FAILOUT
1
2
3
4
5
6
7
8
MAX3261
24
23
22
21
20
19
18
17
IBIASOUT
IMODSET
IBIASSET
IBIASFB
OSADJ
VREF1
V
CC
B
ENB+
IBIASSET
IMODSET
OSADJ
IPINSET
________________________________________________________________
Maxim Integrated Products
GNDB
VIN+
GNDB
VIN-
GNDB
V
CC
B
V
CC
B
ENB-
9
10
11
12
13
14
15
16
TQFP
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

MAX3261CCJ+T Related Products

MAX3261CCJ+T MAX3261ECJ+T MAX3261CCJ+ MAX3261ECJ+
Description Interface Circuit, PQFP32, TQFP-32 Interface Circuit, PQFP32, TQFP-32 Interface Circuit, PQFP32, TQFP-32 Interface Circuit, PQFP32, TQFP-32
Is it Rohs certified? conform to conform to conform to conform to
Maker Maxim Maxim Maxim Maxim
Parts packaging code QFP QFP QFP QFP
package instruction TFQFP, TFQFP, TFQFP, TFQFP,
Contacts 32 32 32 32
Reach Compliance Code compliant compliant compliant compliant
Interface integrated circuit type INTERFACE CIRCUIT INTERFACE CIRCUIT INTERFACE CIRCUIT INTERFACE CIRCUIT
JESD-30 code S-PQFP-G32 S-PQFP-G32 S-PQFP-G32 S-PQFP-G32
JESD-609 code e3 e3 e3 e3
length 5 mm 5 mm 5 mm 5 mm
Humidity sensitivity level 1 1 1 1
Number of functions 1 1 1 1
Number of terminals 32 32 32 32
Maximum operating temperature 70 °C 85 °C 70 °C 85 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TFQFP TFQFP TFQFP TFQFP
Package shape SQUARE SQUARE SQUARE SQUARE
Package form FLATPACK, THIN PROFILE, FINE PITCH FLATPACK, THIN PROFILE, FINE PITCH FLATPACK, THIN PROFILE, FINE PITCH FLATPACK, THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius) 260 260 260 260
Certification status Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height 1.2 mm 1.2 mm 1.2 mm 1.2 mm
Maximum supply voltage 5.25 V 5.25 V 5.25 V 5.25 V
Minimum supply voltage 4.75 V 4.75 V 4.75 V 4.75 V
Nominal supply voltage 5 V 5 V 5 V 5 V
surface mount YES YES YES YES
Temperature level COMMERCIAL INDUSTRIAL COMMERCIAL INDUSTRIAL
Terminal surface MATTE TIN MATTE TIN TIN MATTE TIN
Terminal form GULL WING GULL WING GULL WING GULL WING
Terminal pitch 0.5 mm 0.5 mm 0.5 mm 0.5 mm
Terminal location QUAD QUAD QUAD QUAD
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED 30 NOT SPECIFIED
width 5 mm 5 mm 5 mm 5 mm
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