Datasheet

Power-Supply Requirements and Connections

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5 Power-Supply Requirements and Connections

5.1 Power Supply

Only one main power supply is needed. Apply 7 VDC to 18 VDC to the PGA450-Q1EVM that supplies

power to the entire board, except for the USB communications board and LIN which are powered by the

USB communication PCB. Connect a power supply to the banana jacks, P1 “VPWR_IN” and P3 “GND” or

use the screw terminal P2.

5.2 Controlling and Powering the PGA450-Q1 EVM via the USB Interface Board

The PGA450-Q1 EVM is shipped with a USB interface board that provides a link from the PC-controlled

GUI (described later) to the EVM. Connect the USB interface board to the PGA450-Q1 by connecting the

30-pin female header on the interface board to P6, the male 30-pin header on the PGA450-Q1 EVM. The

TI logo on the interface board should face up when it is plugged in. Figure 1 shows the interface board

connected to the PGA450-Q1 EVM.

Figure 1. PGA450-Q1 EVM Set-Up

5.3 Connecting the Transducer

A Murata transducer is included with the EVM. Solder the transducer connector to the through-holes at

P6. Alternatively, use the screw terminal to connect the transducer.

PGA450-Q1 EVM User’s Guide SLDU007A–March 2012–Revised January 2013

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