MAX3867 Evaluation MAX3867 evaluation kit) assembled demonstratio

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MAX3867 Evaluation MAX3867 evaluation kit) assembled demonstratio

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MAX3867 Evaluation
MAX3867 evaluation kit) assembled demonstration board that provides optical electrical evaluation MAX3867. composed independent sections board. output electrical evaluation section interfaced connector, which connected terminated oscilloscope. output optical evaluation section configured attachment laser/monitor diode. Fully Assembled Tested +3.3V +5.0V Operation Input Termination Provided On-Board
Features
Evaluates: MAX3867
Ordering Information
PART MAX3867EVKIT TEMP. RANGE -40°C +85°C PACKAGE TQFP
Electrical Component List
DESIGNATION C14, C21, C31, C33, C24, C25, C28, C26, C27, C29, C30, C37, C41, DESCRIPTION install. 0.01µF ±10% ceramic capacitors (0402) 0.1µF ±10% ceramic capacitors (0603) 0.056µF ±10% ceramic capacitors (0603) 10µF ±20% tantalum (16V) capacitor TAJC106M016 0.01µF ±10% ceramic capacitors (0603) 0.22µF ±10% ceramic capacitor (0603) 1000pF ±10% ceramic capacitor (0402) Digi-Key P363-ND edge-mount connectors EFJohnson 142-0701-801 Digi-Key J502-ND Shunts Digi-Key S9000-ND 2-pin headers (0.1in center) Digi-Key S1012-36-ND ferrite beads (0805) Murata BLM21A102S 1.2µH inductor Coilcraft 1008LS-122XKBC ferrite beads (0603) Murata BLM11A601SPT R43, TP2, TP3, TP8, TP10-TP13, VCC1, GND1 TP17, TP18 None None DESIGNATION R22, R25, R26, R30, R28, R29, R32, R38, DESCRIPTION transistor (SOT23) Zetex FMMT591A ("91A" marking) 1.5k resistors (0603) resistor (0603) 84.5 resistors (0402) resistors (0402) resistor (0603) install. 49.9 resistors (0402) 100k variable resistor Bournes Digi-Key 3296W-104-ND variable resistor Bournes Digi-Key 3296W-503-ND 200k variable resistor Bournes Digi-Key 3296W-204-ND resistors (0603) 24.9 resistor (0402) resistor (0603) MAX3867ECM (48-pin TQFP) MAX495ESA Test points Digi-Key 5000K-ND install. MAX3867 data sheet MAX3867 circuit board (Rev
J5-J9
JU4, JU4, L10,
Maxim Integrated Products
free samples latest literature, visit www.maxim-ic.com phone 1-800-998-8800. small orders, phone 1-800-835-8769.
MAX3867 Evaluation Evaluates: MAX3867
Optical Component List
DESIGNATION C1-C4, C17, C15, C18, C10-C13, C20, C22, DESCRIPTION 0.01µF ±10% ceramic capacitors (0402) install. 1000pF ±10% ceramic capacitor (0402) 0.056µF ±10% ceramic capacitor (0603) 0.1µF ±10% ceramic capacitors (0603) 0.22µF ±10% ceramic capacitor (0805) 10µF ±20% tantalum (16V) capacitor TAJC106M016 0.01µF ±10% ceramic capacitors (0603) Digi-Key P363-ND edge-mount connectors EFJohnson 142-0701-801 Digi-Key J502-ND 2-pin headers (0.1in center) Digi-Key S1012-36-ND Shunts Digi-Key S9000-ND ferrite bead (0805) Murata BLM21A102S ferrite bead (0603) Murata BLM11HA601SPT resistor (0603) DESIGNATION R10, R12, R35, TP1, TP4, TP5, TP6, TP14, VCC, TP15, TP16 DESCRIPTION 1.2µH Inductor Coilcraft 1008LS-122XKBC ferrite beads (0603) Murata BLM11A601SPT 1.5k resistors (0603) 1.0k resistor (0603) 84.5 resistors (0402) resistors (0402) variable resistor Bournes Digi-Key 3296W-503-ND 200k variable resistor Bournes Digi-Key 3296W-204-ND 100k variable resistor Bournes Digi-Key 3296W-104-ND resistor (0603) install. 27.4 resistor (0402) 49.9 resistor (0402) 24.9 resistor (0402) resistors (0603) 43.2 resistor (0402) Test points Digi-Key 5000K-ND install. MAX3867ECM (48-pin TQFP)
J1-J4
JU1, JU1,
Component Suppliers
SUPPLIER Coilcraft Digi-Key EFJohnson Murata Zetex PHONE 803-946-0690 847-639-6400 218-681-6674 402-474-4800 814-237-1431 516-543-7100 803-626-3123 847-639-1469 218-681-3380 402-474-4858 814-238-0490 516-864-7630
Quick Start
Electrical Evaluation
electrical configuration, automatic power control (APC) test circuit included emulate semiconductor laser with monitor photodiode. Monitor diode (MD) current provided which controlled operational amplifier (U3). test circuit, consisting applies simulated current (the laser bias current divided 100) MAX3867. ensure proper operation electrical configuration, evaluation board follows: data latched, remove shunt from enable input clock; otherwise, leave shunt place.
MAX3867 Evaluation
Remove shunt from enable outputs. Note: When performing following resistance checks, manually ohmmeter high range avoid forward biasing on-chip protection diodes. Adjust R41, potentiometer, resistance between pins (test point ground). Adjust R42, BIAS potentiometer, resistance between pins (test point ground). Adjust R40, potentiometer, resistance between pins (test point ground). Apply differential input signal (max amplitude 800mV side) (DATA+ DATA-). latch enabled, apply differential clock signal (max amplitude 800mV side) (CLK+ CLK-). Attach high-speed oscilloscope with inputs Power board with +3.3V supply. Adjust until desired laser bias current achieved: VTP12 BIAS TP13 Adjust until desired laser modulation current achieved: Signal Amplitude (Volts) cutout portion (component) side board. Solder laser diode cathode center pad, solder anode either other pads (they both connected VCC). Connect monitor photodiode five pads bottom (solder) side board, directly below laser diode pads. Three these pads (the middle outside positions) initially connected. other pads connected Solder anode cathode monitor photodiode three pads that connected. Then connect anode shorting corresponding solder jumper (Figure Connect cathode using solder bridge adjacent pad.
Evaluates: MAX3867
Note: When performing resistance checks, manually ohmmeter high range avoid forward biasing on-chip protection diodes. Adjust R14, potentiometer, maximum resistance between pins (test point ground). Adjust R15, BIAS potentiometer, maximum resistance between pins (test point ground). Adjust R16, potentiometer, desired optical power. (Refer Design Procedure section MAX3867 data sheet.) Apply differential input signal (800mV side) (DATA+ DATA-). Apply differential clock signal (800mV side) (CLK+ CLK-). Attach laser diode fiber connector optical/electrical converter. Power board with +3.3V supply. Adjust until (D1) longer illuminated. Optical power observed oscilloscope connected optical/electrical converter. Adjust until desired optical amplitude achieved. Optical amplitude observed oscilloscope connected optical/electrical converter.
Optical Evaluation
optical evaluation MAX3867, configure follows: data latched, remove shunt from enable input clock; otherwise, leave shunt place. Remove shunt from enable outputs. designed allow connection variety possible laser/monitor diode configurations. Connect TO-header-style laser with (Figure follows: Keeping leads short possible, connect laser diode three pads
MAX3867 Evaluation Evaluates: MAX3867
Adjustment Control Descriptions (see Quick Start first)
COMPONENT OPTICAL ELECTRICAL NAME FUNCTION Enables/disables clock input. Shunt direct data transmission. Remove shunt enable clock input. Enables/disables output currents. Shunt disable part. Remove shunt normal operation. Electrical Output Adjusts laser modulation current. Adjusts laser bias current. open-loop mode, adjusts laser bias current. closed-loop operation, adjusts maximum laser bias current. closed-loop operation, adjusts current level. level indicates failure loop. Refer Design section MAX3867 data sheet. current, then increase bias current until goes (LED illuminated when loop open, when loop closed).
CLOCK DISABLE OUTPUT DISABLE Electrical Output BIAS
TP10
Fail Indicator Fail Indicator
MAX3867 Evaluation Evaluates: MAX3867
CONFIGURATION
CONFIGURATION
BOARD
BOARD
TO-46 LASER/PHOTODIODE PAIR
TO-46 LASER/PHOTODIODE PAIR
SOLDER BRIDGES
SOLDER BRIDGES
BOTTOM BOARD
BOTTOM BOARD
CONFIGURATION
CONFIGURATION
BOARD
BOARD
TO-46 LASER/PHOTODIODE PAIR
TO-46 LASER/PHOTODIODE PAIR
SOLDER BRIDGES
SOLDER BRIDGES
BOTTOM BOARD
BOTTOM BOARD
Figure Attachment Laser Diode/Monitor Diode MAX3867
Evaluates: MAX3867
100k TP13 TP11 1.5k 0.01µF FMMT591A TEST CIRCUIT MAX495 0.01µF BIAS OPEN 0.01µF 0.22µF OPEN 1.5k 1.0k 1.5k
N.C.
APCSET
DATA+ DATA+ DATAVCC OPEN
N.C.
N.C.
BIASMAX
MODMAX
CAPAPC
0.01µF
0.1µF
84.5
MAX3867 Evaluation
SLWSTRT
FAIL
LATCH
N.C.
CLK+
ENABLE
APCFILT
Figure MAX3867 Schematic-Electrical Configuration
200k 10µF 1000pF MURATA BLM21A1025S
N.C. OUTOUT+ N.C. N.C. BIAS CLK+ CLKVCC 0.01µF 84.5
49.9
VCC1
1.2µH
GND1
84.5
DATA-
0.1µF
MAX3867
MURATA BLM11HA601SPT
0.056µF 24.9 MURATA 0.056µF BLM11HA601SPT MURATA BLM21A1025S
0.1µF
BIAS TP12 0.01µF
49.9
84.5
CLKJU4 TP10 OPEN
0.1µF
OPEN TP17 OPEN TP18 OPEN OPEN
0.1µF
100k
49.9 200k
TP14 OPEN OPEN
0.01µF 0.22µF 0.01µF MONITOR PHOTODIODE MOUNTING PADS (USE TWO) 1.5k 1.5k 1.0k
1.2µH
10µF
84.5 N.C. N.C. APCSET N.C. 0.01µF MURATA BLM11A601SPT MURATA BLM21A102SPT 0.01µF 0.1µF MURATA BLM11HA601SPT 27.4 43.2 OPEN BIASMAX CAPAPC DATA+ DATAVCC OUT+ N.C. N.C. BIAS SLWSTRT FAIL LATCH N.C. APCFILT ENABLE CLK+ CLKVCC N.C.
0.01µF
MODMAX
0.1µF
DATA+
1000pF
Figure MAX3867 Schematic-Optical Configuration
0.01µF 0.056µF
84.5
DATA-
OUT-
0.01µF 84.5
24.9
0.1µF
MAX3867
MURATA BLM11A601SPT
0.1µF
CLK+
OPEN
0.01µF
LASER DIODE MOUNTING PADS (USE TWO)
0.01µF
84.5
CLKJU1 OPEN
0.1µF
OPEN OPEN TP15 OPEN
TP16 OPEN
Evaluates: MAX3867
MAX3867 Evaluation
MAX3867 Evaluation Evaluates: MAX3867
1.0"
1.0"
Figure MAX3867 Component Placement Guide- Component Side
Figure MAX3867 Board Layout-Component Side
MAX3867 Evaluation Evaluates: MAX3867
1.0"
1.0"
Figure MAX3867 Board Layout-Ground Plane
Figure MAX3867 Board Layout-Power Plane
MAX3867 Evaluation Evaluates: MAX3867
1.0"
Figure MAX3867 Board Layout-Solder Side
MAX3867 Evaluation Evaluates: MAX3867
NOTES
MAX3867 Evaluation Evaluates: MAX3867
NOTES
Maxim makes warranty, representation guarantee regarding suitability products particular purpose, does Maxim assume liability arising application product circuit specifically disclaims liability, including without limitation consequential incidental damages. "Typical" parameters vary different applications. operating parameters, including "typicals" must validated each customer application customer's technical experts. Maxim products designed, intended authorized components systems intended surgical implant into body, other applications intended support sustain life, other application which failure Maxim product could create situation where personal injury death occur.
_Maxim Integrated Products, Gabriel Drive, Sunnyvale, 94086 408-737-7600 2000 Maxim Integrated Products Printed registered trademark Maxim Integrated Products.

MAX3867 Evaluation MAX3867 evaluation kit) assembled demonstratio

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