Texas Instruments DAC80501, Руководство пользователя, Страница: 4 / 19

USB2ANY
POWE R SUPPLY
(Optiona l)
System Setup
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4 SLAU795 – November 2018
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Copyright © 2018, Texas Instruments Incorporated
DAC80501EVM
2 System Setup
2.1 Hardware Setup
This section provides the overall system setup for the EVM. A PC runs software that provides an interface
to the USB2ANY platform. This platform generates the optional 3.3V power and digital signals used to
communicate with the EVM board. Connectors are included on the EVM board for external power
supplies.
Figure 1 displays the system setup for the DAC80501EVM.
Figure 1. DAC80501EVM Hardware Setup
2.1.1 Connecting the Hardware
Connect the USB cable from the USB2ANY platform to the PC. To connect the USB2ANY to the EVM
board, align and firmly connect the keyed ribbon connector to the J8 connector. Verify the connection is
snug because loose connections may cause intermittent operation.
2.1.2 Power Configurations
The DAC80501EVM provides electrical connections to the device supply pins. The connectors and
optional configurations are shown in the
Table 4 . Note that the headroom between the reference and the
power supply needs to be maintained. Refer to datasheet for details.
Table 4. Power Supply Inputs
Connector/Pin Supply Name Voltage Range
J2.1 VDD 4.5-V to 5.5-V
J2.2 GND 0-V
J1.5 (Option) VDD (JP1 needs to be closed) 3.3-V
2.1.3 Electrostatic Discharge Warning
Many of the components on the DAC80501EVM 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.