Texas Instruments DAC8811EVM Evaluation Module DAC8811EVM DAC8811EVM 데이터 시트
제품 코드
DAC8811EVM
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EVM Operation
6.1
Factory Default Setting
The EVM board is set to its default configuration from factory as described in
to operate in
unipolar voltage output operation. The default jumper settings below are shown in
.
Table 1. DAC8801/11EVM Factory Default Jumper Setting
Jumper
Reference
Position
Function
W1
2-3
Routes +10V reference source to the MDAC V
REF
input.
W2
1-2
MDAC Chip Enable is driven by CS via J2-1.
W3
1-2
MDAC I
OUT
is connected to the I-to-V converter, U5.
W5
1-2
Negative supply rail of U4A operational amplifier is sourced by V
SS
.
W15
OPEN
U4A operational amplifier configuration is set for 5x gain.
W25
OPEN
Chip Enable is disconnected from GND so that the control signal from W2 is allowed to drive this pin.
1-2
Tie R
FB
to MDAC V
OUT
.
J4
7-8
MDAC V
OUT
connected to J5 header via RC filter.
1-2
MDAC V
OUT
is routed to the inverting input of U4A.
J5
3-4
Noninverting input of U4A tied to AGND.
Figure 9. DAC8801/11EVM Default Jumper Setting
6.2
Host Processor Interface
The host processor drives the MDAC, so the MDACs proper operation depends on the successful
configuration between the host processor and the EVM board. In addition, a properly written code is also
required to operate the MDAC.
configuration between the host processor and the EVM board. In addition, a properly written code is also
required to operate the MDAC.
A custom cable can be made specific to the host interface platform. The EVM allows interface to the host
processor through J2 header connector for the serial control signals and the serial data input. The output
can be monitored through the J4 header connector.
processor through J2 header connector for the serial control signals and the serial data input. The output
can be monitored through the J4 header connector.
An interface adapter card is also available for specific TI DSP starter kit as well as an MSP430 based
microprocessor as mentioned in
microprocessor as mentioned in
of this manual. Using the interface card alleviates the tedious
task of building customize cables and allows easy configuration of a simple evaluation system.
This MDAC EVM interfaces with any host processor capable of handling serial communication protocols or
the popular TI DSP. For more information regarding the serial interface of the particular MDAC installed,
refer to the specific MDAC data sheet, as listed in the Related Documentation from Texas Instruments
section (
the popular TI DSP. For more information regarding the serial interface of the particular MDAC installed,
refer to the specific MDAC data sheet, as listed in the Related Documentation from Texas Instruments
section (
) of this user guide.
9
SLAU151A – January 2005 – Revised November 2009
DAC8801/11EVM
Copyright © 2005–2009, Texas Instruments Incorporated