Texas Instruments DAC80501, Руководство пользователя, Страница: 7 / 19

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Detailed Description
7 SLAU795 – November 2018
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DAC80501EVM
3.1.2 Signal Definition of USB2ANY
The DAC80501EVM provides a hardware connector (J1) that connects to the USB2ANY interface board
The USBANY platform supplies VIO power and is responsible for providing the SPI commands sent from
the PC GUI software. Optionally, the VDD supply can be provided through an external supply, and all
digital communication lines can be accessed through their respective digital test points.
Table 6 provides
the pin definitions for this connector. Table 7 provides the corresponding test points for the SPI signals.
Table 6. J8 (USB2ANY) Pin Definitions
Pin# Signal Description
1 GPIO7 General purpose I/O
2 CS/GPIO6 /CS | General purpose I/O
3 RXD/MISO SPI MISO
4 TXD/MOSI SPI MOSI
5 3.3V 3.3V Supply
6 GND Ground
7 GPIO3 General purpose I/O
8 SCLK/GPIO2 SPI SCLK
9 GPIO1 General purpose I/O
10 GPIO0 General purpose I/O
Table 7. J1 SPI Signal Test Points
Test Points SPI Signal
TP1 SCLK
TP2, TP3 GND
TP4 MOSI/SDI
TP5 SYNC
3.1.3 DAC Signal Pins
The DAC80501EVM provides access to the DAC output through connection J3 as listed in Table 8 .
Table 8. J3 Pin Definitions
Connector/Pin Signal Name
J3-1 VOUTA
J3-2 GND