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Table 2-1 lists a few recommended supplies that have been tested with the EVM
Table 2-1. Recommended External Power Supply
DigiKey Part# Manufacturer Manufacturer Part #
SDI65-12-U-P6-ND CUI Inc. SDI65-12-U-P6
SDI65-12-UD-P6-ND CUI Inc. SDI65-12-UD-P6
Connector[J7] is a Two pin DC Jack power input connector. This connector mates with the recommend supplies
listed in
Table 2-1
A green power led [LD2] will be illuminated when a valid power source is connected to either power input. A red
power led [LD3] will be illuminated when a power source not within the correct voltage range (less than 6 VDC or
greater than 28 VDC).
2.2.1 Power Control [SW2_CP] with LED for Status [LD5_CP] [LD6_CP] [LD7_CP]
The EVM supports a manual switch [SW2] for power control to the EVM. The switch [SW2] is a two-position
switch. The OFF position disconnects input power from on-board circuitry. The ON position connects the input
power.
Three status LEDs [LD5][LD6][LD7] are used to communicate power status to the user.
Table 2-2. Power Domain Status
LED ‘ON’ State ‘OFF’ State
[LD7]
Power switch [SW2] is in the ON position,
and input power is being supplied to the
EVM.
Power switch [SW2] is in the OFF or there
is some other issue causing power to not be
supplied.
[LD6] MCU domain of the EVM is powered
MCU domain of the EVM is not powered/OFF
1
[LD5] MAIN domain of the EVM is powered
MAIN domain of the EVM is not
powered/OFF 1
1. The power management IC (PMIC) includes functions to monitor power domains, including over/under
voltage, over current, and residual voltage. If the PMIC detects and error, it may transition to ‘safe mode’
where it powers down both the MCU and MAIN domains.
2.2.2 Power Budget Considerations
The exact power required for the EVM is largely dependent on the application, usage of the on-board
peripherals, and power needs of the add-on devices.
Table 2-3 shows the design’s power allocations. Again,
the input supply must be capable of supplying the power needs of your application.
Table 2-3. Power Allocation
Function Power Description
Processor Core TBD Processor, DDR Memory
Memory, Non-Volatile TBD xSPI NOR, eMMC, Octal NAND etc.
On-Board Peripherals TBD Ethernet, Boot Logic, etc.
USB Port(s) TBD Type A Port(s), Type C
Expansion Interface(s) TBD PCIe, Fusion 2
Camera Port(s) TBD RPI Camera(s), Camera Expansion
Display(s) TBD DisplayPort, DP transceiver
2.3 User Inputs
The EVM supports several mechanisms for the user to configure, control, and provide input to the system.
2.3.1 Board Configuration Settings [SW3_CP] [SW13_CP] [SW3_SOM]
Dip switches [SW3_CP] [SW13_CP] [SW3_SOM] are used to configure different options available on the EVM.
www.ti.com User Interfaces
SPRUJ69 – DECEMBER 2022
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Jacinto7 TDA4VE-Q1/TDA4VL-Q1/TDA4AL-Q1 Evaluation Module (EVM) 9
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