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TMS320F28075PZPQ Datasheet(PDF) 95 Page - Texas Instruments

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Part # TMS320F28075PZPQ
Description  Microcontrollers
PDF  182 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMS320F28075PZPQ Datasheet(HTML) 95 Page - Texas Instruments

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PWMSYNC1
VREFHI
VDDA
VSSA
RPD
VDAC
DACCTL[DACREFSEL]
DACCTL[LOADMODE]
SYSCLK
DACCTL[SYNCSEL]
PWMSYNC2
PWMSYNC3
PWMSYNCn
...
0
1
D Q
>
D Q
>
DACVALS
0
1
2
…
n-1
0
1
DACVALA
Buffer
12-bit
DAC
VSSA
TMS320F28075
www.ti.com
SPRS902B – OCTOBER 2014 – REVISED OCTOBER 2015
5.8.3
Buffered Digital-to-Analog Converter (DAC)
The buffered DAC module consists of an internal reference DAC and an analog output buffer that is
capable of driving an external load. An integrated pulldown resistor on the DAC output helps to provide a
known pin voltage when the output buffer is disabled. This pulldown resistor cannot be disabled and
remains as a passive component on the pin, even for other shared pin mux functions. Software writes to
the DAC value register can take effect immediately or can be synchronized with PWMSYNC events.
Each buffered DAC has the following features:
•
12-bit programmable internal DAC
•
Selectable reference voltage
•
Pulldown resistor on output
•
Ability to synchronize with PWMSYNC
The block diagram for the buffered DAC is shown in Figure 5-38.
Figure 5-38. DAC Module Block Diagram
Copyright © 2014–2015, Texas Instruments Incorporated
Specifications
95
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Product Folder Links: TMS320F28075



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