Texas Instruments DAC7631EVM Evaluation Module DAC7631EVM DAC7631EVM 데이터 시트
제품 코드
DAC7631EVM
www.ti.com
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EVM Basic Functions
DAC Module
Output
Buffer
Module
VCC
VSS
VCC
GND
GND
VDD
DAC Out
(J1)
(J3)
(J6)
(P6)
VDD
(J2)
(P2)
SDO
SCLK
LDAC
TP1
W7
VSS
AGND
SDI
(J4)
(P4)
TP5
CS
Q1
W15
W5
VSS
+3.3VD
RST
RSTSEL
LOAD
VCC/VSS
TP6
TP7
DGND
VOUTSense
VOUT
VREFH VREFL VDD
Reference
Buffer
REF3025
XTR115
W6
W2
TP2
W9
W8
J5
Q2
±
5 VA
125
Ω
±
5VA
EVM Basic Functions
This EVM is designed primarily as a functional evaluation platform to test certain functional characteristics
of the DAC7631 DAC. Functional evaluation of the installed DAC device can be accomplished with the
use of any microprocessor, TMS320™ DSP family, or some sort of a signal/waveform generator.
of the DAC7631 DAC. Functional evaluation of the installed DAC device can be accomplished with the
use of any microprocessor, TMS320™ DSP family, or some sort of a signal/waveform generator.
The headers J2 and P2 are the connectors provided to allow the control signals and data required to
interface a host processor or waveform generator to the DAC7631 EVM using a custom-built cable.
interface a host processor or waveform generator to the DAC7631 EVM using a custom-built cable.
A specific adapter interface card is also available for most of TI’s DSP Starter Kits (DSK) and the card
model depends on the type of the TI DSP Starter Kit to be used. To acquire the right adapter interface
card, be sure to specify the DSP that is used. In addition, there is also an MSP430-based platform
(HPA449) that uses the MSP430F449 microprocessor, with which this EVM can connect and interface.
For more details or information regarding the adapter interface card or the HPA449 platform, call Texas
Instruments, or send an e-mail to dataconvapps@list.ti.com.
model depends on the type of the TI DSP Starter Kit to be used. To acquire the right adapter interface
card, be sure to specify the DSP that is used. In addition, there is also an MSP430-based platform
(HPA449) that uses the MSP430F449 microprocessor, with which this EVM can connect and interface.
For more details or information regarding the adapter interface card or the HPA449 platform, call Texas
Instruments, or send an e-mail to dataconvapps@list.ti.com.
The DAC output can be monitored through the selected pins of J4 header connector. The output of U1
can be switched from either pin 2 or pin 4 of the header, J4, for stacking reason. Stacking allows a total of
two DAC channels (if two DAC7631 EVMs are stacked).
can be switched from either pin 2 or pin 4 of the header, J4, for stacking reason. Stacking allows a total of
two DAC channels (if two DAC7631 EVMs are stacked).
In addition, the option of selecting one DAC output (from J4-2 or J4-4) to be connected to the output
operational amplifier, U2, is also possible by using a jumper across the selected pins of J4. The output
operational amplifier, U2, is configurable through J5, W5, and W15 for any desired waveform
characteristic.
operational amplifier, U2, is also possible by using a jumper across the selected pins of J4. The output
operational amplifier, U2, is configurable through J5, W5, and W15 for any desired waveform
characteristic.
A block diagram of the DAC7631 EVM is shown in
.
Figure 1. DAC7631 EVM Block Diagram
DAC7631EVM
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SLAU148 – January 2005