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QL200 PIC DEVELOPMENT BOARD
5.16 10-bit D/A Conversion Module
SHENZHEN QLS ELECTRONIC TECHNOLOGY CO.,LTD
This module mainly experiments how to convert the digital signals into analog signals. As shown in Figure 5-33.
Figure 5-33 TLC5651 module
This module has the following components:
1) 10-bit D/A converter chip TLC5615
2) Result of the conversion output interface
3) Coding switch
4) Interface socket
Descriptions about this module are as the following:
1) TLC5615 information is included in the CD-ROM.
2) TLC5615 external communications follows the SPI protocol.
3) The communication ports DIN, SCK and CS of TLC5615 connected to the RC5, RC3 and RC2 of the MCU
through coding switch.
2) The coding switch controls the connection between the serial module and the MCU. When this module is in
use, please make sure the coding switch is on, and while it is not in use, please make sure the coding switch is
off.
5) By using the interface socket, you can use other MCU ports to communicate with TLC5615 on the condition
that the coding switch is off.
6) The result output socket outputs the conversion result.
7) Examples about this module are contained in the CD-ROM.
The schematic of this module is shown in Figure 5-34.
S8
6
5
4
1
2
3
4
DIN
SCLK
CS
DOUT
U17
VDD
OUT
REFIN
AGND
8
7
6
5
VDD
C40
104P
TLC5615
3
2
1
CON35
2
1
RC5 1
RC3 2
RC2 3
Figure 5-34 TLC5615 D/A converter schematic
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