NXP Semiconductors
AN11744
PN5180 Evaluation board quick start guide
AN11744 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
Application note Rev. 1.3 — 2 February 2018
COMPANY PUBLIC 371213 33 / 45
The trigger delay defines the delay between AWG trigger input and the LMA sequence
start. The given 300µs define a standard TR0 for type B, if the TX_IRQ signal is taken as
trigger signal.
<Generate Signal From Hex Data> generates the binary as well as the subcarrier
sequence, and automatically loads this sequence and related settings into the AWG.
A simple test can be done:
Step 1: Setup the hardware as shown in Fig 24. Place the Reference PICC close to the
PCD antenna.
Step 2: Setup the AWG in the NFC Cockpit as defined above.
Step 3: Enable the test bus and route TX_IRQ to a test pin (e.g. IRQ pin).
Step 4: Load Protocol with type B 106 and enable the RF Field.
Step 4: Send a single REQB. -> the ATQB should be received properly.
Note: After loading the settings and the sequence into the AWG, the AWG can be
switched to “local control”. This allows a faster direct control for manual tests of e.g. the
trigger delay or the LMA amplitude at the AWG without reloading all the settings again.
4.8.4 Rx Matrix test with AWG
The Rx Matrix test allows to control the LMA level of the PICC response, if the AWG is
setup as described above.
The type B script file example as shown in 6.2 can be used to check the Rx performance
in e.g. 2cm operating distance (see Fig 28).
Figure 28. Rx Matrix test run example with AWG
The Fig 29 shows the result of such a test run to indicate the sensitivity limit with RxGain
= 2, HPCF = 2, MinLevel = 3 and MinLevel = 6.
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