Buf12800Evm Board Block Diagram - Texas Instruments BUF12800 User Manual

BUF12800EVM Hardware Setup
2.1 Theory of Operation for BUF12800 Hardware
Figure 2 shows the BUF12800 test board hardware setup. The functionality of the PCB is such that it
provides connections to the I
board. It also provides connection points for external connections of the shunt voltage, bus voltage, and
ground.
25-Pin Male
2.2 Signal Definitions of J1 (25-Pin Male DSUB)
Table 3 shows the various signals connected to J1 on the BUF12800 test board.
Pin No on U1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
(1)
When power is switched off, digital I/O is also switched off.
4
BUF12800EVM Evaluation Board and Software Tutorial
2
C and general-purpose inputs/outputs (GPIOs) on the USB DIG Platform
External BUF12800
Analog Power Supply
V Supply
DUT
(V Power Supply)
SD
J1
DSUB
2
I C Interface
Figure 2. BUF12800EVM Board Block Diagram
Table 3. J1 Signal Definition for BUF12800EVM
Signal
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
I2C_SCK
I2C_SDA2
N/C
I2C_SCK_ISO
I2C_SDA_ISO
N/C
N/C
N/C
V
DUT
V
CC
N/C
N/C
GND
SPI_SCK
SPI_CS1
SPI_DOUT1
SPI_DIN1
Copyright © 2011–2016, Texas Instruments Incorporated
T1
Test Outputs
BUF12800 TP1
2
I C A0 Address
Jumper
2
I C clock signal (SCL) channel 1; can be
disconnected using a switch
2
I C data signal (SDA) channel 1; can be
disconnected using a switch
Switched 3-V/5-V power
Common ground connection
SBOU116A – September 2011 – Revised August 2016
www.ti.com
Test Point
Header
BUF12800 Pin
No connection
No connection
No connection
No connection
No connection
No connection
No connection
No connection
No connection
No connection
No connection
No connection
No connection
No connection
(1)
No connection
No connection
No connection
No connection
No connection
No connection
No connection
Submit Documentation Feedback