Texas Instruments BUF22821 Evaluation board BUF22821EVM-USB BUF22821EVM-USB 数据表

产品代码
BUF22821EVM-USB
下载
页码 34
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
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,
(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.
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.
6
BUF22821EVM-USB Evaluation Board and Software Tutorial
SBOU117
September 2011
Copyright
©
2011, Texas Instruments Incorporated