MAX3946EVKIT+ Maxim Integrated, MAX3946EVKIT+ Datasheet

MAX3946EVKIT+

Manufacturer Part Number

MAX3946EVKIT+

Description

Laser Drivers 1.0625Gbps to 11.3Gbps SFP+ Laser Driver with Laser Impedance Mismatch Tolerance

Manufacturer

Maxim Integrated

Type

Laser Driverr

Datasheet

1.MAX3946EVKIT.pdf (11 pages)

Specifications of MAX3946EVKIT+

Data Rate

11.3 Gbps

Operating Supply Voltage

2.85 V to 3.63 V

Supply Current

68 mA

Maximum Power Dissipation

2.2 W

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19-5755; Rev 0; 2/11

The MAX3946 evaluation kit (EV kit) is an assembled

demonstration board that provides optical evaluation

of the MAX3946 1.0625Gbps to 11.3Gbps laser driver.

The controlling software communicates with the EV kit

through the USB port and provides simplified control

of all the device functions. The EV kit can be fully

power the device by a single external 3.3V supply

while the USB port supplies the on-board microcon-

troller. The flex-cable connection on the EV board

allows attachment of lasers incorporating flex cables.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

J3, J4, TP3, TP7,

DESIGNATION

C1–C6, C8, C9,

C25, C26, C27,

C11, C13, C15

C35, C37, C38

MAX3946 EV Kit Board

C7, C10, C12,

L4, L11, L12

TP10–TP13

C16, C41

C17–C20

C21, C22

C49, C52

C34, C55

L2, L3

J1, J2

C14

JU2

_______________________________________________________________ Maxim Integrated Products 1

QTY

General Description

0.01FF Q10% ceramic

capacitors (0402)

0.1FF Q20% ceramic capacitors

(0204)

10FF Q10% ceramic capacitors

(0805)

Not installed

33pF Q10% ceramic capacitors

(0402)

0.1FF Q10% ceramic capacitors

(0402)

1FF Q10% ceramic capacitors

(0603)

4.7FF Q10% ceramic capacitors

(0805)

Green LED

SMA edge-mount connectors

Test points

USB connector

2 x 6 header, 0.1in centers

22FH Q20% inductor

Taiyo Yuden CBC3225T220M

18nH Q2% inductors (0402)

Ferrite beads (0402)

Murata BLM15GG471

EV Kit Contents

DESCRIPTION

MAX3946 Evaluation Kit

*EP = Exposed pad.

MAX3946EVKIT

DESIGNATION

R18, R52, R55,

Drives Differential-Connected Lasers

Software Control of the MAX3946

Power Supplied Through USB or External

Connection

R31, R51, R53

L10, L14,

R15, R50

R16, R17

R66, R73

L15, L16

R1, R2

R5, R6

R7, R8

SW1

R24

U10

PART

—

QTY

Ordering Information

10FH Q10% inductors (0603)

1.00kI Q1% resistors (0402)

680I Q5% resistor (0402)

20I Q5% resistors (0603)

100I Q5% resistors (0603)

4.7kI Q5% resistors (0402)

1kI Q5% resistors (0402)

51I Q5% resistors (0402)

1.5kI Q5% resistor (0402)

10kI Q5% resistors (0402)

SPDT switch

1.0625Gbps to 11.3Gbps, SFP+

laser driver (24 TQFN-EP*)

Maxim MAX3946ETG+

Low-noise LDO regulator

(8 TDFN-EP*)

Maxim MAX8902AATA+

User-supplied TOSA

Microcontroller (28 SO)

Microchip PIC16C745-I/SO

6MHz crystal

ECS Inc. ECS-60-32-5PXDN

PCB: MAX3946 EVALUATION

BOARD, REV A

Component List

DESCRIPTION

EV Kit

TYPE

Features

Related parts for MAX3946EVKIT+

MAX3946EVKIT+ Summary of contents

Page 1

... Q2% inductors (0402) Ferrite beads (0402) L4, L11, L12 3 Murata BLM15GG471 _______________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. MAX3946 Evaluation Kit Drives Differential-Connected Lasers S Software Control of the MAX3946 ...

Page 2

MAX3946 Evaluation Kit Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the EV kit software. Text in bold and underlined refers to items from the Windows system. 1) Solder ...

Page 3

Figure 2. MAX3946 EV Kit Software Detailed Description of Software Graphical User Interface (GUI) The GUI consists of three main blocks: bias and modulation control, data path adjustments, and fault indicators. Bias and Modulation Control For bias and modulation current ...

Page 4

MAX3946 Evaluation Kit Figure 3. MAX3946 EV Kit Schematic 4 ______________________________________________________________________________________ ...

Page 5

Figure 4. MAX3946 EV Kit Component Placement Guide—Component Side _______________________________________________________________________________________ MAX3946 Evaluation Kit 5 ...

Page 6

MAX3946 Evaluation Kit Figure 5. MAX3946 EV Kit PCB Layout—Top Side 6 ______________________________________________________________________________________ ...

Page 7

Figure 6. MAX3946 EV Kit PCB Layout—Ground Plane _______________________________________________________________________________________ MAX3946 Evaluation Kit 7 ...

Page 8

MAX3946 Evaluation Kit Figure 7. MAX3946 EV Kit PCB Layout—Power Plane 8 ______________________________________________________________________________________ ...

Page 9

Figure 8. MAX3946 EV Kit PCB Layout—Solder Side _______________________________________________________________________________________ MAX3946 Evaluation Kit 9 ...

Page 10

MAX3946 Evaluation Kit Figure 9. MAX3946 EV Kit Component Placement Guide—Solder Side 10 _____________________________________________________________________________________ ...

Page 11

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2011 Maxim Integrated Products © ...

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