Mikroe DAC 3 click User manual

2 3
click
BOARDS™
www.mikroe.com
2. Soldering the headers
3. Plugging the board in
Once you have soldered the headers your
board is ready to be placed into the desired
mikroBUS™socket. Make sure to align the cut
in the lower-right part of the board with the
markings on the silkscreen at the mikroBUS™
socket. If all the pins are aligned
correctly, push the board all the
way into the socket.
Turn the board upward again. Make sure
to align the headers so that they are
perpendicular to the board, then solder the
pins carefully.
Turn the board upside down so that
the bottom side is facing you upwards.
Place shorter pins of the header into the
appropriate soldering pads.
Before using your click board™, make sure
to solder 1x8 male headers to both left and
right side of the board. Two 1x8 male headers
are included with the board in the package.
4. Essential features
DAC 3 click contains two analog output screw
terminals: Vout and GND. 16-bit data is sent
to the DAC through I2C. The digital value is
converted to the appropriate voltage level
in the range between GND and REFERENCE
(VCC or 4.096V), which is proportional to
the received 12-bit number. MCP4726 also
integrates EEPROM for storing DAC register
and conguration bit values.
1
DAC 3 click carries Microchip’s MCP4726, a
12-bit digital-to-analog converter, along with
voltage output screw terminals. The IC has
EEPROM, congurable reference voltage, and
communicates with the target board MCU
through the mikroBUS™I2C interface (SCL,
SDA pins). Standard (100 kHz), fast (400
kHz) and highspeed (3.4 MHz) I2C modes are
available. The board uses either a 3.3V or a 5V
power supply. The board is suitable for sensor
calibration, motor control, set point or oset
trimming and many other applications.
DAC 3 click
1. Introduction
DAC 3 click Manual v100
0100000093788

AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS DEVICE CONN.1
GNDGND
POWER SELECTOR
VCC SCL
SDA
VCC
CN1
GND
VOUT
C1
100nF
VCC
GND
VREF
VCC
VREF
VCC-REF
3
1
2
VIN
GND
VOUT
REF1
MCP1541
VCC
4.096V
VCC-REF
VCC
E1
10uF
GND
1
2
3 4
5
6
R2
4K7
R3
4K7
VCC VCC
SCL
SDA
GND
R1
470R
PWR
GND
VCC
GND
MCP4726
VOUT
VSS
VDD SDA
SCL
VREF
U1
8. Code examples
MikroElektronika oers free tech support
(www.mikroe.com/support) until the end of
the product’s lifetime, so if something goes
wrong, we’re ready and willing to help!
Once you have done all the necessary
preparations, it’s time to get your click board™
up and running. We have provided examples
for mikroC™, mikroBasic™and mikroPascal™
compilers on our Libstock website. Just
download them and you are ready to start.
.com
6. Dimensions
MikroElektronika assumes no responsibility
or liability for any errors or inaccuracies
that may appear in the present document.
Specication and information contained in
the present schematic are subject to change
at any time without notice.
Copyright © 2016 MikroElektronika.
All rights reserved.
mm mils
LENGTH 28.6 1125
WIDTH 25.4 1000
HEIGHT* 3.3 130
5. Schematic
7. SMD jumpers 10. Disclaimer
9. Support
25.4 mm / 1000 mils
28.6 mm / 1125 mils
* without headers
DAC 3 click features two SMD jumpers:
PWR SEL for switching between a 3.3V or a
5V power supply, and REF SEL for choosing
either VCC or 4.096V as a reference voltage.