Evaluation Board User Guide

UG-361

Rev. 0 | Page 3 of 8

EVALUATION BOARD CONFIGURATION

SETTING UP THE EVALUATION BOARD

The EVAL-ADN469xEFDEBZ allows the full-duplex parts in

the ADN469xE family to be quickly and easily evaluated. The

evaluation board allows all of the input and output functions to

be exercised without the need for external components. Jumper

configurations are shown in Table 2.

The board is powered by connecting a 3.3 V power supply to the

screw terminals for VCC and GND. Supply current is typically

16 mA with both driver and receiver enabled or 1 mA with

both disabled. A 10 μF decoupling capacitor, C1, is fitted at

ADN469xE is fitted with a decoupling capacitor of 100 nF.

An example evaluation of the ADN4692E/ADN4693E/

ADN4695E/ADN4697E driver is shown in Figure 2. A signal

generator is connected to DI with an input signal of 50 MHz

(ADN4692E/ADN4695E) or 100 MHz (ADN4693E/ADN4697E),

with a 50% duty cycle and swing of between 0 V and 3.3 V.

Jumpers LK1 and LK2 are connected in Position A to disable

the receiver and enable the driver. Oscilloscope probes are

connected to DI, Y, and Z.

Similarly, an evaluation of the ADN4692E/ADN4693E/

ADN4695E/ADN4697E receiver is shown in Figure 3. A

signal generator capable of applying a differential input signal

is connected to J5 and J6, with the input swing between 1 V and

1.2 V (J6 input is the inverse of J5). Jumpers LK1 and LK2 are

connected in Position B to enable the receiver and disable the

driver. Oscilloscope probes are attached to RO, A, and B.

EVALUATION WITH APPLICATIONS

Two EVAL-ADN469xEFDEBZ boards can connect together in a

point-to-point configuration, as shown in Figure 4. To allow part

evaluation with a load equivalent to a parallel-terminated bus,

the boards have been fitted with 50 Ω termination resistors. For

the point-to-point configuration in Figure 4, replace these resistors

with 100 Ω resistors.

A signal generator is connected onto the DI input of one board.

The Y and Z outputs of this board are connected to the A and B

inputs of the second board, respectively.

Connecting probes to DI on the first board, and A, B, and RO

on the second, the propagation of the input signal across the

bus and to the receiver output of the second board can be

observed and evaluated.

Alternatively, the EVAL-ADN469xEFDEBZ can connect to an

existing bus and a control board, as shown in Figure 5, to test

the performance in the application. In this case, remove both

termination resistors, as well as the jumpers on LK1 and LK2.

Connect control signals to RO, RE, DE, and DI.

RE

J2

LK1

LK2

DE

J3

DI

J4

A

B

J6

AB

J5

J7

Z

Y

J8

RO

J1

RO

DE

DI

EVAL-ADN469xEFDEBZ

GND

GND

GND

GND

GND

GND

J9

VCC

SIGNAL

GENERATOR

OSCILLOSCOPE

RE

3.3V POWER

SUPPLY

Figure 2. ADN4692E/ADN4693E/ADN4695E/ADN4697E Driver Evaluation with EVAL-ADN469xEFDEBZ

RE

J2

LK1

LK2

DE

J3

DI

J4

A

B

J6

AB

J5

J7

Z

Y

J8

RO

J1

RO

DE

DI

EVAL-ADN469xEFDEBZ

GND

GND

GND

GND

GND

GND

J9

VCC

OSCILLOSCOPE

RE

3.3V POWER

SUPPLY

SIGNAL

GENERATOR

Figure 3. ADN4692E/ADN4693E/ADN4695E/ADN4697E Receiver Evaluation with EVAL-ADN469xEFDEBZ