SWRU553A September 2019 – February 2020 AWR1243 , AWR2243
A separate, 6-pin, Molex Minifit Jr connector provides for the connection of bench 5.0 V power to the MMWAVCAS-RF-EVM. 5.0 V power, GND return and a 5.0 V sense and GND sense path are also provided for a 4-terminal, "Kelvin" connection.
NOTE
The Host Board Connectors, J4, and J5 are the primary 5.0 V power inputs to the MMWCAS-RF-EVM. If this bench power connector, J6, is to be used, an attached host board should ensure that either the J4, J5, 5.0 V nets are being supplied from the same supply sourcing J6, or that the 5.0 V nets on J4 and J5 are open and not providing 5.0 V power to the MMWCAS-RF-EVM.
The MMWCAS-DSP-EVM host board has no method of disconnecting these 5.0 V power nets and therefore it is incompatible with this J6 bench power connector.
WARNING
It is required that any attached host board provide 5.0V power conditioning. No 5.0 V rail protection exists on the MMWAVCAS-RF-EVM design itself. The attached host board is expected to provide reverse polarity protection and turn-on/off transient suppression. This is especially import to note when testing in an automotive alternator/battery powered system.
| Pin Number | Pin Name | Pin Type | Pin Description |
|---|---|---|---|
| 1 | GND_SENSE | Power | GND return sense path |
| 2 | GND | Power | GND return |
| 3 | GND | Power | GND return |
| 4 | SYSTEM_5V0_SENSE | Power | 5.0V sense path |
| 5 | SYSTEM_5V0 | Power | 5.0V System Power |
| 6 | SYSTEM_5V0 | Power | 5.0V System Power |