Texas Instruments BUF22821 Evaluation board BUF22821EVM-USB BUF22821EVM-USB 数据表
产品代码
BUF22821EVM-USB
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
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
Control Bits and
Measure Bits
2
External Power
(6 VDC)
Reset Button
and
Power-On Reset
USB_DIG_Platform
3.3-V
Regulator
BUF22821EVM-USB Hardware
2.2.1
Theory of Operation for USB_DIG_Platform
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,
its operation are included in a separate document,
(available for download at
). The
block diagram shown in
gives a brief overview of the platform. The primary control device on the
USB_DIG_Platform is the
Figure 4. USB_DIG_Platform Block Diagram
3
BUF22821EVM-USB Hardware
This section provides details about connecting the two PCBs of the BUF22821EVM-USB together,
applying power, connecting the USB cable, and setting the jumpers.
applying power, connecting the USB cable, and setting the jumpers.
3.1
Electrostatic Discharge Warning
CAUTION
Many of the components on the BUF22821EVM-USB 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.
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.
6
BUF22821EVM-USB Evaluation Board and Software Tutorial
SBOU117
–
September 2011
Copyright
©
2011, Texas Instruments Incorporated