Linear ADI Power DC2654A Manual page 6

DEMO MANUAL DC2654A
PROTOCOL ANALYZER
The CY4500 EZ-PD Protocol Analyzer from Cypress
Semiconductor can be used to monitor the USB PD nego-
tiation. This is useful for debugging and understanding
the data that is being passed between the USB PD adapter
and the board under test.
The adapter can be connected between the USB PD source
providing power and the DC2654A as shown in Figure 8.
The micro USB port is then connected to a computer
Figure 8. CY4500 EZ-PD Protocol Analyzer Connected Between the DC2654A and a USB PD Wall Adapter
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to monitor the data through the supporting GUI from
Cypress Semiconductor. Visit the CY4500 product page
for more information.
Figure 9 shows the negotiation from a power supply
offering 3 Power Data Objects (PDOs): 5V/3A, 9V/3A,
and 12V/2.25A.
Rev. 0