1. Introduction
DAC Click is an accessory board in
mikroBus
™
form factor. It includes a 12-bit Digital-to-
Analog Converter
MCP4921
that features
SPI interface and an optional double buffered
output. The board provides high accuracy
and low noise performance for industrial
applications where calibration or compensation
of signals, such as temperature, pressure and
humidity, are required. Board is set to use
3.3V power supply by default. Solder
PWR
SEL
SMD jumper to 5V position if used with
5V systems.
Once you have soldered the headers your
board is ready to be placed into 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.
3. Plugging the board in
2
3
2. Soldering the headers
1
4. Creating Output Voltages
Board contains two analog output screw
terminals:
Vout
and
GND
. Data in 12-bit
format is sent to the DAC using SPI
communication interface. This data 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.
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
bottom side is facing you upwards. Place
shorter parts of the header pins in the
both soldering pad locations.
Before using your click board, make sure
to solder the provided 1x8 male headers
to both sides of the board. Two 1x8 male
headers are included with the board in
the package.
DAC
click
Front and back side appearance
of the DAC click Board
click
BOARD
www.mikroe.com
DAC click Manual
ver. 1.00
0 100000 020050
