MAX7314EVKIT+ Maxim Integrated, MAX7314EVKIT+ Datasheet - Page 5

• Manufacturer Part Number: MAX7314EVKIT+
• Description: Peripheral Drivers & Components - PCIs Evaluation Kit for the MAX7314
• Manufacturer: Maxim Integrated

Specifications of MAX7314EVKIT+

• Operating Supply Voltage: 2 V to 3.6 V

The EV kit allows for evaluating the MAX7314 with the
on-board I
This is accomplished by configuring jumpers JU1, JU8,
JU9, and JU10 accordingly.
On-board interface:
1) Configure jumpers JU8, JU9, and JU10 according to
2) Configure jumper JU1 with a shunt on pins 1-2 (see
3) Configure jumper JU11 according to Table 8.
User-supplied interface:
1) Configure jumpers JU8, JU9, and JU10 according to
2) Cut trace between pins 1-2 of jumper JU1 and
3) Cut trace between pins 1-2 of jumper JU11 and
4) Connect the INT pad to an interrupt handling pin on
5) Connect the SDA and SCL lines from the user-sup-
6) Connect the I/O supply voltage of the user-supplied
When evaluating the EV kit with a user-supplied inter-
face, ensure that the SCL, SDA, and INT lines are
pulled up to the I/O supply voltage through appropriate
pullup resistors. When using the on-board I
1.5kΩ pullup resistors (R35, R36, R37) are provided on
each of the SCL, SDA, and INT lines.
Table 7. JU8, JU9, and JU10 Configuration
* Default position.
POSITION
SHUNT
(JU8)
1-2*
Table 7.
Table 1.).
Table 7.
place a shunt on pins 2-3 of JU1.
place a shunt on pins 2-3 of JU11.
the user-supplied interface.
plied interface to the SDA and SCL pads.
interface across the VDD and GND pads.
2-3
2
C interface or a user-supplied I
POSITION
SHUNT
(JU9)
1-2*
2-3
_______________________________________________________________________________________
POSITION
SHUNT
(JU10)
1-2*
2-3
2- 3 of JU 8, JU 9, JU 10)
U ser - sup p l i ed ( cut the
1- 2 of JU 8, JU 9, JU 10
b efor e shor ti ng p i ns
tr ace b etw een p i ns
I
2
C INTERFACE
On board
I
2
2
2
C Interface
C interface.
C interface,
MAX7314 Evaluation Kit
The EV kit provides two options for powering the on-
board LEDs. Jumper JU11 connects the LEDs to the 5V
(typ) supply from the PC’s USB port or to an external
supply voltage connected to the VLED pad. When eval-
uating the EV kit with a user-supplied I
external supply must be used to power the on-board
LEDs. Table 8 lists the LED supply voltage options.
The EV kit provides test points TP12–TP15 to allow for
the use of the P12–P15 pins as input ports. The P0–P11
pins can be configured as inputs, but are only utilized
as outputs on the MAX7314 EV kit. To utilize the
P12–P15 pins as inputs, configure the EV kit as follows:
1) Uninstall the pin’s associated WLED.
2) Uninstall the pin’s associated resistor and replace
3) Connect the input signal to the pin’s associated test
4) See the Port Configuration section for details on
The EV kit circuit can also be reconfigured for evaluat-
ing a 5V-rated relay by using jumper JU7. White LED
D5 and resistor R5 must be removed and a short
placed across resistor R5 pads. The MAX7314 can sink
up to 50mA on the output.
Table 8. JU11 Configuration
* Default position.
Table 9. P12–P15 Pin Components
SHUNT POSITION
with a short or 0Ω resistor.
point.
configuring the P12–P15 pins as input ports.
P12
P13
P14
P15
PIN
1-2*
2-3
WLED
D5
D6
D7
D8
(cut the trace between pins 1-2 before
Evaluating Device Inputs
LED SUPPLY VOLTAGE
RESISTOR
shorting pins 2-3)
External supply
PC’s USB port
R18
R17
R16
R15
Relay Evaluation
2
C interface, an
LED Supply
TEST POINT
TP12
TP13
TP14
TP15
5