MAX3669EVKIT# Datasheet MAX3669EVKIT# | P7-P8

Evaluates: MAX3669

MAX3669 Evaluation Kit

_______________________________________________________________________________________ 7

Electrical Output. Remove for optical operation.Electrical Output SMAJ5

TTL low level indicates a failure in the APC loop.Fail Indicator Test PointTP1

Automatic Power Control Adjustment. For closed-loop operation, R16

adjusts the monitor-diode current level.

APCSET

R16

Laser-Bias Current Adjustment. In open-loop mode, R15 adjusts the laser-

bias current. In closed-loop operation, R15 adjusts the maximum laser-bias

current.

BIASMAX

R15

Laser Modulation Current AdjustmentR

MODSET

R14

Enable/Disable the Output Currents. Shunting disables the part. Remove

shunt for normal operation.

OUTPUT DISABLEP1

Refer to the Design section of the MAX3669 data sheet. Set APC current;

then increase bias current until LED goes off (LED is illuminated when the

APC loop is open and off when the APC loop is closed).

APC Fail Indicator LEDD1

COMPONENT FUNCTIONNAME

Adjustment and Control Descriptions

Figure 4b. MAX3669 EV Kit Component Placement Guide—

Component Side

1.0"

Figure 5. MAX3669 EV Kit PC Board Layout—Component Side

1.0"

See Quick Start first.

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

Evaluates: MAX3669

MAX3669 Evaluation Kit

Figure 8. MAX3669 EV Kit PC Board Layout—Power Plane

1.0"

Figure 9. MAX3669 EV Kit Component Placement Guide—

Solder Side

1.0"

Figure 6. MAX3669 EV Kit PC Board Layout—Solder Side

Figure 7. MAX3669 EV Kit PC Board Layout—Ground Plane

1.0"

P1-P3 P4-P6 P7-P8

MAX3669EVKIT#

Mfr. #:

Buy MAX3669EVKIT#

Manufacturer:

Maxim Integrated

Description:

Fiber Optic Development Tools Eval Kit MAX3669 (+3.3V, 622Mbps SDH/SONET Laser Driver with CurrentMonitors and APC)

Lifecycle:

New from this manufacturer.

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MAX3669EVKIT#