Hardware Specifications
7
SPRUIS6 – September 2019
Copyright © 2019, Texas Instruments Incorporated
MMWCAS-DSP-EVM
2.3
Attaching MMWCAS-DSP-EVM to MMWCAS-RF-EVM
The MMWCAS-DSP-EVM is designed to have a companion RF board attached to capture radar data. The
EVM provides 5-V power and necessary control to the RF board upon connecting.
The boards align and attach through the board to board connectors (J1 and J18) on the EVM. The
connectors are keyed to prevent incorrect, 180 degree, opposite orientation. The four corner mounting
holes align the boards as well to outline the match. Depressing the RF board connectors into the EVM
connectors connects the boards together. Use the included standoffs to secure a single assembly of the
boards. Refer to
for reference.
Figure 5. MMWCAS-DSP-EVM (bottom) and MMWCAS-RF-EVM (top) Board Alignment
2.4
Power
The MMWCAS-DSP-EVM is powered by 12-V power, either from a DC barrel connector (J10) or screw
terminal (J11). A wall DC power source or a bench power source can be used to power the EVM. The
power source should be rated at least 3 A. The typical power source is 12-V, 5-A Advantech Power supply
P/N:
.
When power is provided, various LEDs around the edge of the board light up, indicating the proper
interfaces have the adequate power. Refer to the block diagram to see location of key status LEDs.
The companion power management IC (PMIC) for the SOC is TPS659039EP-Q1. A step-down 12-V to
3.3-V and 5-V converter is available in order to provide a 3.3-V and 5-V DC input to the PMIC as well as
3.3-V and 5-V power rails at the board level.
shows the complete power supply tree.