SBOU296A April   2023  – September 2023 PGA855

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Overview
    1. 1.1 Related Documentation
    2. 1.2 Electrostatic Discharge Caution
    3. 1.3 Hot Surface Warning
  5. 2EVM Circuit Description
  6. 3Jumper Settings
  7. 4Power-Supply Connections
  8. 5Analog Input and Output Connections
  9. 6Digital Input Pins and Gain Control
  10. 7Modifications
  11. 8Schematic, PCB Layout, and Bill of Materials
    1. 8.1 Schematic
    2. 8.2 PCB Layout
    3. 8.3 Bill of Materials
  12. 9Revision History

3 Jumper Settings

Figure 3-1 details the default jumper settings of the PGA855EVM. Table 3-1 explains the configuration for these jumpers.

GUID-20230922-SS0I-7RRV-MCQT-TFXKR7WB7X1B-low.pngFigure 3-1 PGA855EVM Default Jumper Settings
Table 3-1 Default Jumper Configuration
JumperFunctionDefault PositionDescription
J5Positive (noninverting) input, IN+Shunt 2-3Shunt 2-3: Input signal to SMA connector J3
Shunt 1-2 connects IN+ to GND
J7Negative (inverting) input, IN–Shunt 2-3Shunt 2-3: Input signal to SMA connector J6
Shunt 1-2 connects IN– to GND
J9LVDD+ connectionShunt 1-2Shunt 1-2: Sets output stage supply LVDD+ to +VCC supply
Shunt 2-3 connects LVDD+ to external connector J14 pin 1
J16LVSS– connectionShunt 1-2Shunt 1-2: Sets output stage supply LVDD- to –VEE supply
Shunt 2-3 connects LVDD– to external connector J14 pin 3
J10PGA gain CTRL A2OpenOpen: Sets A2 to GND or 0
Shunt 1-2: Sets A2 to VCC or 1
J11PGA gain CTRL A1OpenOpen: Sets A1 to GND or 0
Shunt 1-2: Sets A1 to VCC or 1
J12PGA gain CTRL A0OpenOpen: Sets A0 to GND or 0
Shunt 1-2: Sets A0 to VCC or 1