Texas Instruments PGA450Q1EVM-S, User Manual, Page: 2 / 17

J3-1: SPI-MISO
J3-2: SPI-MOSI
J3-3: SPI-SCLK
J3-4: SPI-CS
J4-4: PGA450 UART TXD
J4-3: PGA450 UART RXD
J4-2: GND
J4-1: DACO
J2
-4
: VPR
O
G
_O
TP
(8
V
)
J2
-3
: G
N
D
J2
-2
: L
IN
J2
-1
: VPW
R
(8
to
1
8
V
)
J1
-1
: XD
C
R
±
J1
-2
: XD
C
R
+
Introduction
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2 SLDU019B – December 2015 – Revised March 2016
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PGA450Q1EVM-S User's Guide and TIDA-00151 UART Demo Instructional
1 Introduction
The PGA450Q1EVM-S is a fully assembled PCB design for real-world evaluation of the PGA450-Q1
ultrasonic-sensor signal-conditioner device, an ultrasonic transducer, and step-up transformer. This EVM
can be integrated with systems for general object detection and distance measurement through air, in
applications such as automotive park-assist, level sensing in tanks, collision avoidance for autonomous
robotics, and unmanned aerial vehicle landing assist. This small form-factor EVM is intended to act as an
ultrasonic module alternative to the full-scale PGA450Q1EVM. TI recommends that the user first begins
evaluation with the PGA450Q1EVM before transitioning to evaluation with the PGA450Q1EVM-S.
2 Setup and Operation
This section describes how to setup and configure the PGA450Q1EVM-S for basic operation. A detailed
description of connectors, jumpers, and test points are provided in addition to the typical operation setup
of the EVM. An example of operation is also included.
Figure 1 shows the PGA450Q1EVM-S pinout for the available input and output connectors.
Figure 1. PGA460Q1EVM-S Pinout