SBOU315 March 2024 PGA849
The programmable amplifier input signal connections for the PGA849EVM are provided through the use of SMA connectors J4, J7, and test points TP4, TP8, located at the left of the EVM. The REF external input is provided through screw-terminal connector J2, located at the right of the board. The PGA849EVM also provides direct access to the REF pin through screw-terminal connector J5.1, and test point TP7 located at the right of the board.
The PGA849 output amplifier connection is provided through screw-terminal connector J5.4, SMA connector J3, and test point TP5, located at the right side of the EVM. Figure 3-5 displays a simplified diagram of the PGA849EVM input and output connections.
Table 3-3 summarizes the input and output connectors and corresponding test points.
Connector Designator | Signal | Comment | Test Point |
---|---|---|---|
J4 | IN+ | SMA | TP4 |
J7 | IN– | SMA | TP8 |
J3 | OUT | SMA | TP3 |
J5.4 | OUT | Screw terminal | TP3 |
J5.3 | GND | Screw terminal | TP2 |
J5.2 | GND | Screw terminal | TP9 |
J5.1 |
REF pin / REF_sense |
Screw terminal |
TP7 |
J2.1 | REF_Ext | Screw terminal | TP2 |
J2.2 | GND | Screw terminal | N/A |