MAX3681EVKIT-SO Maxim Integrated, MAX3681EVKIT-SO Datasheet

MAX3681EVKIT-SO

Manufacturer Part Number

MAX3681EVKIT-SO

Description

Interface Development Tools Evaluation Kit for the MAX3681

Manufacturer

Maxim Integrated

Series

MAX3681r

Datasheet

1.MAX3681EVKIT-SO.pdf (8 pages)

Current page: 1 of 8
Download datasheet (65Kb)

The MAX3681 evaluation kit (EV kit) simplifies evalua-

tion of the MAX3681 622Mbps, SDH/SONET 1:4 deseri-

alizer. The EV kit requires only a single +3.3V supply

and includes all the external components necessary to

interface with 3.3V PECL and LVDS logic. The board

can be connected directly to the output of a clock-and-

data-recovery circuit (such as the MAX3675) and to the

input of an LVDS device (such as an overhead termina-

tion circuit). A signal generator or stimulus system can

be used with an oscilloscope, to evaluate the

MAX3681’s basic functionality.

19-1111; Rev 0; 8/96

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

______________Component Suppliers

____________________Component List

R1, R3, R5, R7

R2, R4, R6, R8

DESIGNATION

MAX3681EVKIT-SO

_______________General Description

______________Ordering Information

Coilcraft

Sprague

+3.3V, GND

C1–C4, C7

C8–C11

R9–R13

J1–J16

SUPPLIER

None

PART

QTY

________________________________________________________________ Maxim Integrated Products

(847) 639-6400

(603) 224-1961

0.1µF ceramic capacitors

33µF, 6.3V tantalum capacitor

Sprague 293D336X06R3C2

2.2µF ceramic capacitor

100pF ceramic capacitors

SMA connectors (PC edge mount)

56nH inductor

Coilcraft 0805CS-560

130Ω, 5% resistors

82Ω, 5% resistors

100Ω, 5% resistors

MAX3681EAG

2-pin headers

MAX3681 data sheet

-40°C to +85°C

TEMP. RANGE

PHONE

DESCRIPTION

(847) 639-1469

(603) 224-1430

Surface Mount

BOARD TYPE

FAX

MAX3681 Evaluation Kit

____________________________Features

The MAX3681 EV kit simplifies evaluation of the

MAX3681. The EV kit operates from a single +3.3V sup-

ply and includes all the external components neces-

sary to interface with 3.3V PECL and LVDS logic.

Each PECL input (SCLK+, SCLK-, SD+, SD-) is termi-

nated on the EV board with the Thevenin equivalent of

50Ω to (V

by the output of any 3.3V PECL device, such as a

clock-and-data-recovery circuit (e.g., the MAX3675).

All LVDS outputs (PCLK+, PCLK-, PD_+, PD_-) are dif-

ferentially terminated with 100Ω resistors between com-

plementary outputs. Each output can directly drive an

LVDS input or a high-impedance input oscilloscope

(see the section Connecting LVDS Outputs to 50 Ω

Input Oscilloscopes ). When driving an LVDS input that

already includes 100Ω differential termination, remove

the termination resistor corresponding to the appropri-

ate LVDS output.

The synchronization inputs (SYNC+, SYNC-) are inter-

nally terminated LVDS inputs with 100Ω differential

input resistance. Ensure that LVDS devices driving

these inputs are not redundantly terminated.

All signal inputs and outputs use coupled 50Ω trans-

mission lines. All input signal lines are of equal length

to minimize propagation-delay skew. Likewise, all out-

put signal lines are of equal length.

To monitor an LVDS signal on a 50Ω input oscilloscope,

remove the differential load resistor between the com-

plementary outputs and AC couple each output to an

oscilloscope input. For example, to observe the PD0

signal on a 50Ω input instrument, remove resistor R12

from the EV board and place a capacitor or DC block in

series with each output (PD0+ or PD0-) and the instru-

ment input. Do not connect MAX3681 outputs directly

to 50Ω inputs or terminations to ground. Choose a

coupling capacitor large enough in value to prevent pat-

tern-dependent distortion of the output signal.

_______________Detailed Description

__________Applications Information

Single +3.3V Supply

Inputs and Outputs Terminated for Interfacing

with 3.3V PECL and LVDS Logic

Fully Assembled and Tested

- 2V). These inputs can be driven directly

Connecting LVDS Outputs to

50 Ω Input Oscilloscopes

Related parts for MAX3681EVKIT-SO

MAX3681EVKIT-SO Summary of contents

Page 1

... MAX3675) and to the input of an LVDS device (such as an overhead termina- tion circuit). A signal generator or stimulus system can be used with an oscilloscope, to evaluate the MAX3681’s basic functionality. ______________Ordering Information PART TEMP. RANGE MAX3681EVKIT-SO -40°C to +85°C ____________________Component List DESIGNATION QTY DESCRIPTION C1–C4 0.1µ ...

Page 2

MAX3681 Evaluation Kit Figure 1. MAX3681 EV Kit Schematic 2 _______________________________________________________________________________________ ...

Page 3

Figure 2. MAX3681 EV Kit Component Placement Guide—Component Side _______________________________________________________________________________________ MAX3681 Evaluation Kit 3 ...

Page 4

MAX3681 Evaluation Kit Figure 3. MAX3681 EV Kit PC Board Layout—Component Side 4 _______________________________________________________________________________________ ...

Page 5

Figure 4. MAX3681 EV Kit PC Board Layout—Solder Side _______________________________________________________________________________________ MAX3681 Evaluation Kit 5 ...

Page 6

MAX3681 Evaluation Kit Figure 5. MAX3681 EV Kit PC Board Layout—Power Plane 6 _______________________________________________________________________________________ ...

Page 7

Figure 6. MAX3681 EV Kit PC Board Layout—Ground Plane _______________________________________________________________________________________ MAX3681 Evaluation Kit 7 ...

Page 8

... 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 © 1996 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

Related keywords

MAX3681EVKIT-SO datasheet
MAX3681EVKIT-SO data sheet
MAX3681EVKIT-SO pdf datasheet
MAX3681EVKIT-SO component
MAX3681EVKIT-SO part
MAX3681EVKIT-SO distributor
MAX3681EVKIT-SO RoHS
MAX3681EVKIT-SO datasheet download