General Description
The MAX13047E evaluation kit (EV kit) provides a
proven design to evaluate the MAX13047E dual-bidi-
rectional low-level translator. The MAX13047E trans-
lates between VL and VCC logic levels for data rates up
to 16Mbps (8MHz).
The MAX13047E EV kit PCB comes with a
MAX13047EEVB+ installed.
Features
oOn-Board Clock Generators Capable of 8MHz,
4MHz, and 1MHz
o8Mbps (+1.2V ≤VL ≤+3.6V, VCC ≤+5.5V)
o16Mbps (+1.8V ≤VL ≤VCC ≤+3.3V)
oLead-Free and RoHS Compliant
oProven PCB Layout
oFully Assembled and Tested
Evaluates: MAX13047E
MAX13047E Evaluation Kit
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Maxim Integrated Products
1
19-4290; Rev 0; 9/08
Component List
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.
Ordering Information
Component Suppliers
DESCRIPTION QTY DESCRIPTION
C1, C3, C4, C6 4
0.1µF ±10%, 16V X7R ceramic
capacitors (0402)
Murata GRM155R71C104K
C2, C5, C7, C8,
C10, C11 6
1µF ±10%, 16V X5R ceramic
capacitors (0603)
TDK C1608X5R1C105K
C9, C12 2
0.01µF ±10%, 16V X7R ceramic
capacitors (0603)
Murata GRM188R71C03K
JU1–JU5, JU8,
JU9, JU10 8 3-pin headers
JU6, JU7 2 2-pin headers
R1–R4 4 0Ω ±5% resistors (0603)
R5 1 45.3kΩ ±1% resistor (0603)
R6, R10 2 90.9kΩ ±1% resistors (0603)
R7, R8, R9 3 301Ω ±1% resistors (0603)
DESCRIPTION QTY DESCRIPTION
R11–R14 0 Not installed, resistors (0603)
U1 1
Dual-channel level translator
(10 UTQFN)
Maxim MAX13047EEVB+
U2 1 1.8V LDO (5 SC70)
Maxim MAX8510EXK18+
U3 1 3V LDO (5 SC70)
Maxim MAX8510EXK30+
U4 1
Resistor-programmable oscillator
(8 µSOP)
Maxim DS1090U-1+
U5 1
Resistor-programmable oscillator
(8 µSOP)
Maxim DS1090U-4+
U6 1 Dual inverter (6 SC70)
— 8 Shunts
— 1 PCB: MAX13047E Evaluation Kit+
SUPPLIER PHONE WEBSITE
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
TDK Corp. 847-803-6100 www.component.tdk.com
PART TYPE
MAX13047EEVKIT+ EV Kit
+
Denotes lead-free and RoHS compliant.
Note: Indicate that you are using the MAX13047E when contacting these component suppliers.
Evaluates: MAX13047E
MAX13047E Evaluation Kit
2 _______________________________________________________________________________________
Quick Start
Recommended Equipment
Before beginning, the following equipment is needed:
• MAX13047E EV kit
• +5V, 100mA DC power supply
• Two-channel oscilloscope (i.e., Tektronix TDS3012)
Procedure
The MAX13047E EV kit is fully assembled and tested.
Follow the steps below to verify the board operation.
Caution: Do not turn on power supply until all con-
nections are made.
1) Verify that all jumpers are in their default positions,
as shown in Table 1.
2) Connect the positive terminal of the +5V supply to
the VSUPPLY pad and the negative terminal of the
supply to the GND pad.
3) Connect the first channel of the oscilloscope to the
I/O_VL1 pad, which is the +1.8V logic-level 8MHz
signal input.
4) Connect the second channel of the oscilloscope to
the I/O_VCC1 pad, which is the +3V logic-level
8MHz signal output.
5) Turn on the DC power supply.
6) Observe the oscilloscope and verify that the +1.8V
logic-level 8MHz I/O_VL1 signal is translated to the
+3V logic level at the I/O_VCC1 pad.
Detailed Description
The MAX13047E EV kit provides a proven design to
evaluate the MAX13047E dual-bidirectional low-level
translator. The MAX13047E translates between VL and
VCC logic levels for data rates up to 16Mbps (8MHz).
Clock Generators
The MAX13047E EV kit includes the convenience of on-
board clock generators capable of producing 8MHz
and 4MHz signals on the I/O_VL1 and I/O_VCC1
inputs, and 1MHz on the I/O_VL2 and I/O_VCC2 inputs.
Move the shunt of JU1 to the 1-2 position to set the
clock generator to 8MHz and move the shunt to the 2-3
position for 4MHz.
To have both channels transferring data at the same
speed, place a shunt on JU6 or JU7 depending on the
input direction. If I/O_VL_ is the input, place the shunt
in the 1-2 position of JU6. If I/O_VCC_ is the input,
place the shunt in the 1-2 position of JU7. It is impor-
tant when channels are tied together to remove shunts
from JU3 or JU4 depending on the preferred clock
rate. If the 8MHz or 4MHz speed is selected, remove
the shunts from JU4. If the 1MHz speed is selected,
remove the shunt from JU3.
Switching Clock Generator
When translating from VL to VCC, move JU2, JU3, and
JU4 to the 1-2 position. To go from VCC to VL, move
JU2, JU3, and JU4 to the 2-3 position.
Shutdown Mode
The MAX13047E can enter shutdown mode by moving
JU5 to the 2-3 position. Otherwise, leave the shunt at
the 1-2 position for normal operation.
Applying User-Supplied Input Signals
to the I/O_VL_ and I/O_VCC_ Pads
The EV kit allows user-supplied input signals to be
applied to the I/O_VL_ and I/O_VCC_ pads. It is impor-
tant to remove the shunts from JU3 and JU4 to avoid
signal conflicts with the clock generators.
User-Supplied VL, VCC, and VCLK
The EV kit is powered completely from one power sup-
ply by default. Users can supply their own VL and VCC
voltages by moving JU8 and JU10 to the 2-3 position.
Apply a voltage from +1.1V to +3.6V or (VCC + 0.3V) to
the VL and GND pads and +1.65V to +5.5V to the VCC
and GND pads.
Users can apply a +3V to +5.5V power supply to the
VCLK and GND pads once JU8 is moved to the 2-3
position.
Evaluates: MAX13047E
MAX13047E Evaluation Kit
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JUMPER SHUNT
POSITION DESCRIPTION
1-2* Sets the clock generator to 8MHz for the input signals of I/O_VL1 or I/O_VCC1
JU1 2-3 Sets the clock generator to 4MHz for the input signals of I/O_VL1 or I/O_VCC1
1-2* Enables the inverter (U6) and sets the inverter’s output to VL logic level
JU2 2-3 Enables the inverter (U6) and sets the inverter’s output to VCC logic level
1-2* Connects the 8MHz or 4MHz signal from the inverter to the I/O_VL1 input signal
JU3 2-3 Connects the 8MHz or 4MHz signal from the inverter to the I/O_VCC1 input signal
1-2* Connects the 1MHz signal from the inverter to the I/O_VL2 input signal
JU4 2-3 Connects the 1MHz signal from the inverter to the I/O_VCC2 input signal
1-2* Enables the MAX13047E for normal operation
JU5 2-3 Sets the MAX13047E to shutdown mode
Open* Separates the I/O_VL1 signal from the I/O_VL2 signal
JU6 1-2 Connects the I/O_VL1 signal to the I/O_VL2 signal
Open* Separates the I/O_VCC1 signal from the I/O_VCC2 signal
JU7 1-2 Connects the I/O_VCC1 signal to the I/O_VCC2 signal
1-2* Enables the clock generators using the MAX13047E VCC logic level
JU8 2-3 Enables the clock generators using an external supply
1-2* Sets the MAX13047E VL logic level using the on-board 1.8V LDO
JU9 2-3 Sets the MAX13047E VL logic level using an external supply
1-2* Sets the MAX13047E VCC logic level using the on-board 3.0V LDO
JU10 2-3 Sets the MAX13047E VCC logic level using an external supply
Table 1. MAX13047E EV Kit Jumper Description (JU1–JU10)
*
Default position.
Evaluates: MAX13047E
MAX13047E Evaluation Kit
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Figure 1. MAX13047E EV Kit Schematic
Evaluates: MAX13047E
MAX13047E Evaluation Kit
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Figure 2. MAX13047E EV Kit Component Placement Guide—Component Side
Evaluates: MAX13047E
MAX13047E Evaluation Kit
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Figure 3. MAX13047E EV Kit PCB Layout—Component 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.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________
7
© 2008 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Evaluates: MAX13047E
MAX13047E Evaluation Kit
Figure 4. MAX13047E EV Kit PCB Layout—Solder Side
