SLVUCQ2A july 2023 – july 2023 TPSF12C1 , TPSF12C1-Q1
Table 4-4, Table 3-2 and Table 3-3 detail the various signal headers installed on the EVM. In addition, SMB jacks designated J2, J3 and J4 on the PCB facilitate oscillator signal injection and frequency sweep for measurement of filter insertion loss or attenuation.
Header J1 specifically provides connections to the low-voltage side of the sense capacitors (corresponding to the SENSE pins of the TPSF12C1), the low-voltage side of the inject capacitor, the IC bias power supply (VDD and GND pins), which is set between 8 V and 16 V, and a remote enable (EN) signal.
POSITION(1) | LABEL | DESCRIPTION |
---|---|---|
1 | EN | Enable input – leave open or tie high to enable the IC; tie to GND to disable |
2 | VDD | Supply voltage connection – connect to a 12-V bias power supply referenced to GND(2) |
3 | INJ | Low-voltage terminal of the Y-rated inject capacitor, C10. Also connects to the AEF damping network |
4 | GND | Ground – connect to the chassis ground of the system with a direct, low-inductance connection |
5 | S1 | Low-voltage terminal of sense capacitor, C9. Also connects to the SENSE1A and SENSE1B pins of the IC |
6 | S2 | Low-voltage terminal of sense capacitor, C8. Also connects to the SENSE2A and SENSE2B pins of the IC |
POSITION | LABEL | DESCRIPTION |
---|---|---|
1 | VDD | Connect a low-noise external source (8 V to 16 V) between the VDD and GND terminals |
2 | GND | Connected by a trace on the PCB to GND |
3 | LDO | Connect an external source (maximum 36 V) between the LDO and GND terminals to supply the on-board LDO that outputs a regulated 12 V to VDD |
POSITION | LABEL | DESCRIPTION |
---|---|---|
1 | ON | Connected by a trace on the PCB to VDD |
2 | EN | Jumper EN to ON or OFF to enable and disable the TPSF12C1, respectively |
3 | OFF | Connected by a trace on the PCB to GND |