Jumper Settings - Texas Instruments PGA849 User Manual

Hardware

2.2 Jumper Settings

Figure 2-2 details the default jumper settings of the PGA849EVM.
jumpers.
Jumper Function
J1 REF Select
J17 REF Buffer/Connector
J6 Positive (noninverting) input, IN+
J8 Negative (inverting) input, IN–
J9 LVDD+ connection
J16 LVSS– connection
J10 PGA gain CTRL A2
J11 PGA gain CTRL A1
J12 PGA gain CTRL A0
4 PGA849 Evaluation Module
Figure 2-2. PGA849EVM Default Jumper Settings
Table 2-1. Default Jumper Configuration
Default Position
Shunt 5-6
Shunt 1-2
Shunt 2-3
Shunt 2-3
Shunt 1-2
Shunt 1-2
Open
Open
Open
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Table 2-1 explains the configuration for these
Description
Shunt 5-6: Sets REF to mid output stage supply
Shunt 3-4: Sets REF to Ext. REF connector J2
Shunt 1-2: Sets REF to GND
Shunt 1-2: REF pin to REF buffer output
Shunt 2-3: REF pin to REF connector
Shunt 2-3: Input signal to SMA connector J3
Shunt 1-2: connects IN+ to GND
Shunt 2-3: Input signal to SMA connector J6
Shunt 1-2 connects IN– to GND
Shunt 1-2: Sets output stage supply LVDD+ to +VCC supply
Shunt 2-3 connects LVDD+ to external connector J14 pin 1
Shunt 1-2: Sets output stage supply LVDD- to –VEE supply
Shunt 2-3 connects LVDD– to external connector J14 pin 3
Open: Sets A2 to GND or 0
Shunt 1-2: Sets A2 to VCC or 1
Open: Sets A1 to GND or 0
Shunt 1-2: Sets A1 to VCC or 1
Open: Sets A0 to GND or 0
Shunt 1-2: Sets A0 to VCC or 1
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SBOU315 – MARCH 2024
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