MAX3766EVKIT Maxim Integrated, MAX3766EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX3766EVKIT
• Description: Laser Drivers Evaluation Kit for the MAX3766
• Manufacturer: Maxim Integrated
• Type: Laser Driverr

Specifications of MAX3766EVKIT

• Data Rate: 155 Mbps to 622 Mbps
• Operating Supply Voltage: 5 V
• Supply Current: 25 mA
• Maximum Power Dissipation: 590 mW

Table 1. Adjustment and Control Descriptions (review Quick Start first)
CONTROL
JU1
JU2
JU3
JU4
JU5
JU6
JU7
D1
R2
R5
R6
R7
R9
_______________________________________________________________________________________
RPOWERSET
Laser Diode
COUPLING
VCC/VCCA
RBIASMAX
RMODSET
ENABLE
SAFETY
NAME
RTC
MD
—
—
—
This is a socket for a laser in a TO-46 header (customer supplied).
When the JU1 shunt is placed on pins 1 and 2, the MAX3766’s safety features
are enabled. The MAX809M ensures that failures at start-up are ignored until the
voltage level set by the MAX809M is detected on V
to power up without generating a safety shutdown.
Shunting pins 2 and 3 disables safety shutdown.
This solder bridge should be shorted only for electrical evaluation when using
automatic power control.
Selects which EV kit layout to supply with power. Shunt pins 1 and 2 to power up
U1 (larger layout). Shunt pins 2 and 3 to power up U4 (compact layout).
Allows board to switch between optical monitor diode current (shunt pins 2
and 3) and electrically-emulated monitor diode current (shunt pins 1 and 2).
Enables and disables the MAX3766. When shunted, the part is enabled.
This solder bridge should be shorted.
This solder bridge should be open for optical evaluation and shorted for
electrical evaluation.
When using the electrically emulated monitor diode current, R2 sets the ratio of
laser current to monitor diode current.
RTC sets the modulation current temperature compensation, 0kΩ = minimum
tempco (0ppm/°C) to 100kΩ = maximum tempco (~5600ppm/°C).
When in open-loop mode (automatic power control not used), this resistance
sets the laser bias current (0kΩ = maximum bias). When in closed-loop mode, it
sets the maximum bias current available with automatic power control.
Sets the monitor diode reference current in a closed-loop condition (automatic
power control engaged). See MAX3766 data sheet for selection of RPOWERSET.
Sets modulation current. 0kΩ = maximum modulation current.
MAX3766 Evaluation Kit
FUNCTION
CC
. This allows the MAX3766
3