mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 79
mfrc522
Manufacturer Part Number
mfrc522
Description
Contactless Reader Ic
Manufacturer
NXP Semiconductors
Datasheet
1.MFRC522.pdf
(109 pages)
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NXP Semiconductors
112132
Product data sheet
Fig 24. Output TestDAC 1 on AUX1 and TestDAC 2 on AUX2
19.3.1 Example: Output TestDAC 1 on AUX1 and TestDAC 2 on AUX2
19.3.2 Example: Output Testsignal Corr1 on AUX1 and MinLevel on AUX2
Register AnalogTestReg is set to 11h. The output of AUX1 corresponds to the TestDAC 1
and the output of AUX2 to the TestDAC 2. The value of TestDAC 1 and TestDAC 2 is
controlled by register TestDAC1Reg and TestDAC2Reg.
Figure 24
has been programmed with a rectangular signal with values of 00h and 3Fh.
The following
AnalogTestReg is set to 24h. The output of AUX1 corresponds to the Corr1 signal and
AUX2 to the MinLevel.
shows TestDAC1Reg programmed with a slope from 00h to 3Fh. TestDAC2Reg
Figure 25
Rev. 3.2 — 22 May 2007
shows the test signal Corr 1 and the test signal MinLevel. The
Contactless Reader IC
MFRC522
© NXP B.V. 2007. All rights reserved.
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