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MAX3996CTP+T

Description
laser drivers 3-5.5V 2.5gbps vcsel & laser driver
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size760KB,16 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Environmental Compliance
Download Datasheet Parametric View All

MAX3996CTP+T Overview

laser drivers 3-5.5V 2.5gbps vcsel & laser driver

MAX3996CTP+T Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerMaxim
Parts packaging codeQFN
package instructionHVQCCN,
Contacts20
Reach Compliance Codecompliant
ECCN codeEAR99
Factory Lead Time6 weeks
Interface integrated circuit typeINTERFACE CIRCUIT
JESD-30 codeS-CQCC-N20
JESD-609 codee3
length4 mm
Humidity sensitivity level1
Number of functions1
Number of terminals20
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialCERAMIC, METAL-SEALED COFIRED
encapsulated codeHVQCCN
Package shapeSQUARE
Package formCHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius)260
Certification statusNot Qualified
Maximum seat height0.8 mm
Maximum supply voltage5.5 V
Minimum supply voltage3 V
Nominal supply voltage3.3 V
surface mountYES
technologyBIPOLAR
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formNO LEAD
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperatureNOT SPECIFIED
width4 mm
Base Number Matches1
19-2194; Rev 3; 5/04
3.0V to 5.5V, 2.5Gbps VCSEL
and Laser Driver
General Description
The MAX3996 is a high-speed laser driver for small-
form-factor (SFF) fiber optic LAN transmitters. It con-
tains a bias generator, a laser modulator, and
comprehensive safety features. Automatic power con-
trol (APC) adjusts the laser bias current to maintain
average optical power, regardless of changes in tem-
perature or laser properties. The driver accommodates
common anode or differential laser configurations. The
output current range of the MAX3996 is appropriate for
VCSELs and high-efficiency edge-emitting lasers.
The MAX3996 operates up to 3.2Gbps. It can switch up
to 30mA of laser modulation current and sink up to
60mA bias current. Adjustable temperature compensa-
tion is provided to keep the optical extinction ratio with-
in specifications over the operating temperature range.
The MAX3996 accommodates various laser packages,
including low-cost TO-46 headers. Low deterministic jit-
ter (9ps
P-P
), combined with fast edge transitions,
(65ps) provides excellent margins compared to indus-
try-standard transmitter eye masks.
This laser driver provides extensive safety features to
guarantee single-point fault tolerance. Safety features
include a transmit disable, redundant shutdown, and
laser-bias monitoring. The safety circuit detects faults
that could cause hazardous light levels and immediate-
ly disables the laser output. The MAX3996 safety cir-
cuits are compliant with SFF and small-form-factor
pluggable (SFP) multisource agreements (MSA).
The MAX3996 is available in a compact 4mm
4mm,
20-pin QFN package and a 20-pin thin QFN package. It
operates over a temperature range of 0°C to +70°C.
o
9ps
P-P
Deterministic Jitter
o
20-Pin QFN 4mm
4mm Package
o
3.0V to 5.5V Supply Voltage
o
Automatic Power Control
o
Integrated Safety Circuits
o
30mA Laser Modulation Current
o
Temperature Compensation of Modulation
Current
o
Compliant with SFF and SFP MSA
Features
MAX3996
Ordering Information
PART
MAX3996CGP
MAX3996CTP+
TEMP
RANGE
0°C to +70°C
0°C to +70°C
PIN-
PACKAGE
20 QFN
20 Thin QFN
PACKAGE
CODE
G2044-3
T2044-3
+
Denotes Lead-Free Package
Typical Application Circuit
V
CC
OPTIONAL SHUTDOWN
CIRCUITRY
V
CC
1.8kΩ
Applications
Fibre Channel Optical Transmitters
VCSEL Transmitters
Gigabit Ethernet Optical Transmitters
ATM LAN Optical Transmitters
10 Gigabit Ethernet WWDM
0.01µF
IN+
0.01µF
IN-
TX_DISABLE
V
CC
0.01µF
SHDNDRV
0.01µF
FAULT
OUT-
0.01µF
MAX3996
OUT+
L1*
25Ω
BIAS
Pin Configuration appears at end of data sheet.
PORDLY
MD
TC
C
PORDLY
R
TC
R
MOD
N.C.
C
COMP
R
SET
MODSET MON1 MON2 COMP
GND
*FERRITE BEAD
________________________________________________________________
Maxim Integrated Products
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.
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