MAX3863ETJ+T Maxim Integrated Products, MAX3863ETJ+T Datasheet - Page 6

• Manufacturer Part Number: MAX3863ETJ+T
• Description: IC LASR DRVR 2.7GBPS 3.6V 32TQFN
• Manufacturer: Maxim Integrated Products
• Type: Laser Diode Driver (Fiber Optic)r

Specifications of MAX3863ETJ+T

• Data Rate: 2.7Gbps
• Number Of Channels: 1
• Voltage - Supply: 3.15 V ~ 3.6 V
• Current - Supply: 58mA
• Current - Modulation: 80mA
• 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

2.7Gbps Laser Driver with Modulation
Compensation
6
14, 19, 22, 27
1, 4, 5, 8,
_______________________________________________________________________________________
PIN
10
11
12
13
15
16
17
18
20
21
23
24
25
26
28
29
30
31
32
—
2
3
6
7
9
MODCOMP
APCFILT1
MODMON
BIASMON
APCFILT2
BIASMAX
MODSET
MDMON
APCSET
DATA+
MODN
NAME
DATA-
PWC+
CLK+
PWC-
RTEN
MOD
CLK-
MK+
BIAS
FAIL
MK-
V
MD
EN
EP
CC
Positive Supply Voltage
Data Input, with On-Chip Termination
Complementary Data Input, with On-Chip Termination
Clock Input for Data Retiming, with On-Chip Termination
Complementary Clock Input for Data Retiming, with On-Chip Termination
Monitor Diode Current Set Point
APC Loop Filter Capacitor. Short to ground to disable the correction loop through the monitor
diode.
APC Loop Filter Capacitor
Input for Modulation Pulse-Width Adjustment. Connected to GND through R
Complementary Input for Modulation Pulse-Width Adjustment. Connected to GND through
R
Voltage Proportional to the Mark Density. MK+ = MK- for 50% duty cycle.
Voltage Inversely Proportional to the Mark Density
Alarm for Shorts on Current Set Pins and APC Loop Failure Conditions, Active Low
Laser Diode Bias Current Source (Sink Type) to Bias the Laser Diode. Connect to the laser
with an inductor.
Driver Output. AC-coupled to the laser diode.
Complementary Driver Output. Connect to dummy load off-chip.
Monitor Diode Connection
Monitor for MD Current. Voltage developed across an external resistor from mirrored MD
current.
Monitor for Modulation Current. Voltage developed from I
resistor.
Monitor for Bias Current. Voltage developed from I
Couples the Bias Current to the Modulation Current. Mirrors I
Open for zero coupling.
External Resistor to Program I
External Resistor to Program the Maximum I
Modulation and Bias Current Enable, Active Low. Current disabled when floating or high.
Data Retiming Enable Input, Active Low. Retiming disabled when floating or high.
Exposed Pad. The exposed pad must be soldered to circuit-board ground for proper thermal
and electrical operation.
PWC
.
MODC
(I
MOD
FUNCTION
= I
BIAS
MODS
BIAS
+ I
MODC
mirrored through an external resistor.
MOD
)
BIAS
mirrored through an external
through an external resistor.
Pin Description
PWC
.