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MFRC522 数据表(PDF) 78 Page - NXP Semiconductors |
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MFRC522 数据表(HTML) 78 Page - NXP Semiconductors |
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78 / 96 page  MFRC522_33 © NXP B.V. 2009. All rights reserved. Product data sheet PUBLIC Rev. 3 — 26 October 2009 112133 78 of 96 NXP Semiconductors MFRC522 Contactless reader IC 15. Application information A typical application diagram using a complementary antenna connection to the MFRC522 is shown in Figure 27. The antenna tuning and RF part matching is described in the application note Ref. 1 and Ref. 2. Fig 27. Typical application diagram 001aaj636 DVDD AVDD supply MICRO- PROCESSOR host interface TVDD OSCIN OSCOUT 27.12 MHz RX VMID antenna TX1 TVSS TX2 PVDD 2 315 12 21 22 17 16 11 10, 14 13 4 5 6 23 18 PVSS NRSTPD IRQ AVSS DVSS MFRC522 R1 L0 C1 Ra Ra C1 L0 R2 C0 C0 C2 C2 Lant CRx Cvmid |
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