MAX3737ETJ+T Maxim Integrated Products, MAX3737ETJ+T Datasheet - Page 13

• Manufacturer Part Number: MAX3737ETJ+T
• Description: IC LSR DRVR 2.7GBPS 3.63V 32TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Driver (Fiber Optic)r

Specifications of MAX3737ETJ+T

• Data Rate: 2.7Gbps
• Number Of Channels: 1
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 47mA
• Current - Modulation: 85mA
• Current - Bias: 100mA
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-WFQFN Exposed Pad
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 5. Simplified Safety Circuit
Figure 6. Simplified Input Structure
0.11pF
0.11pF
PACKAGE
MAX3737
0.83nH
0.83nH
______________________________________________________________________________________
V
V
CC
CC
Multirate Laser Driver with Extinction
TX_DISABLE
MC_MON
R
PC_MON
R
BC_MON
R
MC_MON
PC_MON
BC_MON
16kΩ
24kΩ
V
5kΩ
5kΩ
CC
I
I
I
MOD
268
BIAS
MD
82
1
V
CC
POR AND COUNTER
V
V
V
CC
CC
CC
60ms DELAY
60ms DELAY
MODULATION
COUNTER
EXCESSIVE
CURRENT
V
V
V
REF
REF
REF
COMP
COMP
COMP
To minimize loss and crosstalk, keep the connections
between the MAX3737 output and the laser diode as
short as possible. Use good high-frequency layout
techniques and multilayer boards with uninterrupted
ground plane to minimize EMI and crosstalk. Circuit
boards should be made using low-loss dielectrics. Use
controlled-impedance lines for data inputs, as well as
the module output.
Using the MAX3737 laser driver alone does not ensure
that a transmitter design is IEC 825 compliant. The entire
transmitter circuit and component selections must be
considered. Each customer must determine the level of
fault tolerance required by their application, recognizing
that Maxim products are not designed or authorized for
use as components in systems intended for surgical
implant into the body, for applications intended to support
or sustain life, or for any other application where the fail-
ure of a Maxim product could create a situation where
personal injury or death may occur.
R
S
LATCH
RS
MAX3737
Q
DELAY
100ns
COLLECTOR
CMOS
OPEN
TTL
ENABLE
ENABLE
I
I
MOD
BIAS
Laser Safety and IEC 825
Ratio Control
SHUTDOWN
TX_FAULT
Layout Considerations
13