Texas Instruments BP-DAC11001EVM, Руководство пользователя

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System Setup
7 SLAU806 – October 2019
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Copyright © 2019, Texas Instruments Incorporated
BP-DAC11001EVM
2.2.1 Power Configurations and Jumper Settings
The BP-DAC11001EVM provides electrical connections to the device supply pins. The connectors and
optional configurations are shown in
Table 4 , and Table 5 shows the EVM jumper settings.
Table 4. BP-DAC11001EVM Power Supply Inputs
BP-DAC11001EVM Connector Supply Name Voltage Range Test Point
J12 VCC 5 V to 15 V TP21
J13 VSS –5 V to –15 V TP24
J14 VDD 4.5 V to 5.5 V TP25
J15 VIO 2.7 V to 5.5 V (Option: 3V3 on the launchpad) TP26
J17 GND 0 V TP27
J18 REF_PWR 5.3 V to 5.5 V TP33
J19 REFGND 0 V TP34
Table 5. BP-DAC11001EVM Jumper Settings
Jumper Description Default Position Alternative Position
J1 2x gain configuration None 1-2 or 2-3
J2 Output amplifier feedback configuration
1-2, 3-4: external resistor and
capacitor connection 5-6, 7-8: embedded resistor connection
J4 LDAC pull-down None 1-2: LDAC tied low
J5 CLR pull-down None 1-2: CLR tied low
J7 DAC output to load circuit connection
None 1-2: DAC output to auxiliary circuit; 2-3: DAC
output to filter input
J8 AGND-OUT to FILTGND connection None 1-2: AGND-OUT and FILTGND shorted
J11 DVDD connection 2-3: DVDD from AEVM_5V0 1-2: DVDD from VDD
J16 IOVDD connection 2-3: IOVDD from AEVM_3V3 1-2: IOVDD from VIO
J20 REF_PWR connection
2-3: REF_PWR from J18 1-2: REF_PWR from VCC. Make sure VCC
is < 6 V before using this option.
J25 Reference filter bypass None 1-2: Bypass reference filter
J26 Reference source selection 2-3: Onboard reference 1-2: External reference (3 V to 10 V)
J30 REFGND connection 2-3: Through ground buffer 1-2: Do not use on the Rev A PCB
J31 Negative reference selection 2-3: Inverted reference source 1-2: Tied to ground (unipolar output mode)
2.2.2 Connecting the Hardware
After the launchpad firmware is upgraded as described in Section 2.1.2 , and power and jumper
configurations done as per Section 2.2.1 , the BP-DAC11001EVM and the launchpad can be connected as
shown in Figure 5 . Connect the USB cable from the lauchpad OTG USB port (U7) to the PC.
2.2.3 Electrostatic Discharge Caution
Many of the components on the BP-DAC11001EVM and the launchpad are susceptible to damage by
electrostatic discharge (ESD). Observe proper ESD handling precautions when unpacking and handling
the EVM, including the use of a grounded wrist strap at an approved ESD workstation.