Texas Instruments BUF12800, Руководство пользователя, Страница: 5 / 31

TUSB3210
8052 C
with USB Interface
and UART
m
USB
From Computer
Adjustable
Regulator
V
(2.7 V to 5.5 V)
CC
V C
m
3.3V
S
V_USB
5V
8K Byte
EEPROM
Calibration
EEPROM
Buffers and
Latches
Power
Switching
V
(2.7 V to 5.5 V)
DUT
Switched Power
I C, SPI
Control Bits and
Measure Bits
2
External Power
(6 VDC)
Reset Button
and
Power-On Reset
USB_DIG_Platform
3.3-V
Regulator
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BUF12800EVM Hardware
5 SBOU116A – September 2011 – Revised August 2016
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Copyright © 2011–2016, Texas Instruments Incorporated
BUF12800EVM Evaluation Board and Software Tutorial
2.2.1 Theory of Operation for USB DIG Platform
Figure 3 shows the block diagram for the USB DIG platform. This platform is a general-purpose data
acquisition system that is used on several different Texas Instruments evaluation modules. The details of
its operation are included in a separate document,
SBOU058 (available for download at www.ti.com ). The
block diagram shown in Figure 3 gives a brief overview of the platform. The primary control device on the
USB DIG platform is the TUSB3210 .
Figure 3. USB DIG Platform Block Diagram
3 BUF12800EVM Hardware
This section provides details about connecting the two PCBs of the BUF12800EVM together, applying
power, connecting the USB cable, and setting the jumpers.
3.1 Electrostatic Discharge Warning
CAUTION
Many of the components on the BUF12800EVM are susceptible to damage by
electrostatic discharge (ESD). Customers are advised to observe proper ESD
handling precautions when unpacking and handling the EVM, including the use
of a grounded wrist strap at an approved ESD workstation.