Memory Block
SD CARD
2Mb
FRAM
Micro
USB
MSP
JTAG
Header
Power Management Block
MSP430F5529
AFE4403
DB9
Connector
6pin eZ430
RF header
UART
Battery
Mgmt
Accelerometer
Battery
Header
Boost
Converter
MSP430
3V LDO
AFE TX
5V LDO
SPI
SPI
AFE RX
3V LDO
Batt
FuelGauge
I2C
AFE4403
Evaluation
Module
MSP Reset
Switch
USB Reset
Switch
2Mb
FRAM
www.ti.com
AFE4403EVM Hardware
Table 1. Save Tab Control Descriptions (continued)
Button/Control
Description
FFT Data
Acquired data sample’s FFT values are stored to the file
Device_ <record number>_FFT.xls
.
Histogram Data
Acquired data sample’s histogram values are stored to the file
Device_ <record number>_Histogram.xls
.
The
Record Number
saves files with the provided number in the file name. User notes can also be added
to the file by typing the notes in the
User Comments
control.
5
AFE4403EVM Hardware
CAUTION
Many of the components on the AFE4403EVM 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, bootstraps, or mats at an approved ESD workstation.
Safety glasses should also be worn.
The key features of the AFE4403 Analog Front End demonstration board are:
•
Based on MSP430F5529
•
DB9 pulse oximeter sensor cable support
•
Acquire data at up to 3000 Hz in evaluation mode
•
SPI Data interface
The AFE4403EVM board can be used as a demo board for pulse oximeter and heart rate applications.
The BOM is provided in
Section 11
. The printed circuit board (PCB) and schematic are shown in
Section 12.1
and
Section 12.4
, respectively.
MSP430F5529 (U2 – see
Section 12.4
) is the microcontroller used on the board. For more details of the
MSP430F5529 please visit
http://focus.ti.com/docs/prod/folders/print/msp430f5529.html
The following sections explain the main hardware components available on the EVM.
Figure 31
shows the
functional block diagram for the EVM.
Figure 31. AFE4403EVM Block Diagram
29
SLAU572B – June 2014 – Revised July 2014
AFE4403 Development Guide
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