19-0972; Rev 0; 8/07
MAX3397E Evaluation Kit
General Description
The MAX3397E evaluation kit (EV kit) is a fully assem-
bled and tested printed-circuit board (PCB) that
demonstrates the capabilities of the MAX3397E ESD-
protected, dual bidirectional low-level translator. The
MAX3397E allows data translation in either direction
(V
L
↔
V
CC
) on any single data line. The MAX3397E EV kit
accepts V
L
from +1.2V to +5.5V and V
CC
from +1.65V to
+5.5V. The EV kit comes with the MAX3397EELA+
installed.
Features
♦
Jumper-Selectable Enable/Shutdown
Configuration
♦
+1.2V to +5.5V Supply Range for V
L
♦
+1.65V to +5.5V Supply Range for V
CC
♦
Proven PCB Layout
♦
Fully Assembled and Tested
Evaluates: MAX3397E
Component List
DESIGNATION
C1, C2
QTY
2
DESCRIPTION
0.1µF ±10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
1µF ±10%, 16V X7R ceramic
capacitor (0603)
Murata GRM188R71C105K
3-pin header
10kΩ ±5% resistor (0603)
MAX3397EELA+
(8-pin µDFN, 2mm x 2mm)
PCB: MAX3397E Evaluation Kit+
PART
Ordering Information
TYPE
EV Kit
MAX3397EEVKIT+
+Denotes
lead-free and RoHS-compliant.
C3
JU1
R1
U1
—
1
1
1
1
1
Component Supplier
SUPPLIER
Murata Mfg. Co., Ltd.
PHONE
770-436-1300
WEBSITE
www.murata.com
Note:
Indicate that you are using the MAX3397E when contact-
ing this component supplier.
________________________________________________________________
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.
MAX3397E Evaluation Kit
Evaluates: MAX3397E
Quick Start
Recommended Equipment
Before beginning, the following equipment is needed:
•
One +5V DC power supply
•
One +3.3V DC power supply
•
One function generator
•
One oscilloscope
Detailed Description of Hardware
The MAX3397E is an ESD-protected, dual bidirectional
low-level translator. The MAX3397E EV kit board pro-
vides a proven layout for evaluating the MAX3397E.
The EV kit comes with a MAX3397EELA+ installed.
Enable/Shutdown Control
Place the shunt on pin 1-2 of JU1 (as shown in Table 1)
to drive the EN pin of the MAX3397E high and to enable
the device. Place the shunt on pin 2-3 of JU1 to drive
the EN pin of the MAX3397E low and to put the device
in shutdown state.
Procedure
The MAX3397E EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on power supplies until all con-
nections are completed.
1) Turn off the +5V DC and +3.3V DC power supplies.
2) Turn off the function generator.
3) Make sure the shunt is on pin 1-2 of JU1.
4) Connect the positive (+) terminal of the +5V DC
power supply to the VCC pad and connect the neg-
ative (-) terminal to the adjacent GND pad.
5) Connect the positive (+) terminal of the +3.3V DC
power supply to the VL pad and connect the nega-
tive (-) terminal to the adjacent GND pad.
6) Connect the positive (+) terminal of the function
generator to I/OVCC1 pad of the MAX3397E EV kit.
Connect the negative (-) terminal of the DC signal
source to the GND pad.
7) Turn on the +5V DC and +3.3V DC power supplies.
8) Turn on the function generator.
9) Set the function generator to a 5V
P-P
, 1MHz, 2.5V
DC offset square wave.
10) Use the oscilloscope to measure the I/O V
L1
output at
pin 5. Verify that the waveform is a 1MHz square wave
and is approximately 3.3 V
P-P
with 1.625V DC offset.
Table 1. Jumper JU1 Configuration
JUMPER
JU1
SHUNT POSITION
1-2*
2-3
DESCRIPTION
Enable
Shutdown
*Default
position.
Power Supply
The MAX3397E accepts V
L
from +1.2V to +5.5V and
V
CC
from +1.65V to +5.5V. The voltage on V
L
must be
less than or equal to the voltage on V
CC
.
When V
L
is connected and V
CC
is disconnected or
connected to ground, the device enters shutdown
mode. In this mode, I/O V
L
can still be driven without
damage to the device; however, data does not translate
from I/O V
L
to I/O V
CC
. If V
CC
falls more than +0.8V
(typ) below V
L
, the device disconnects the pullup resis-
tors at I/O V
L
and I/O V
CC
. To achieve the lowest possi-
ble supply current from V
L
when V
CC
is disconnected,
it is recommended that the voltage at the V
CC
supply
input be approximately equal to GND.
2
_______________________________________________________________________________________
MAX3397E Evaluation Kit
Evaluates: MAX3397E
Figure 4. MAX3397E EV Kit PCB Layout—Solder Side
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.
4
_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2007 Maxim Integrated Products
is a registered trademark of Maxim Integrated Products, Inc.
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