读卡器原理图

1 2 3 4 5 6 A B C D 654321 D C B A Title Number RevisionSize B Date: 22-Mar-2004 Sheet of File: E:\my\ \PCB\GS3321-ID.DDB资料文件夹 Drawn By: D4 1n4148 C18 6800P R14 1M C19 1500p R15 1.5k 3 2 1 8 4 U5A TL062 5 6 7 U5B TL062 R16 4.3k R17 120k C22 56pf C20 5600p C26 0.1uf R18 10k R19 10k VCC C23 3.3uf R21 1.21k R22 43k VCC C27 5600pf R23 12k C28 27p 3 2 1 8 4 U6A LM393 R24 43k R25 10k R1 3.3k R20 100k VCC C29 0.33u VCC C24 0.1U C30 0.1U READER/WRITERAT88RF256-12 OUT RFT1 2N2222 RFT2 2N2907 RFR2 10 RFR3 10 RFR6 82 RFC1 10uF VCC Q121 Q132 Q143 Q64 Q55 Q76 Q47 GND8 CLK2 9 CLK1 10 CLK 11 RST 12 Q9 13 Q8 14 Q10 15 VCC 16 RFU1 74HC4060 GND VCC CNT_RST CNT_RSTCNT_OUT RF_COIL1 RF_COIL2 RFC4 2.2nF RFX1 4M RFC6 22P RFC7 22P RFR9 330 RFR10 1M Q12N2222 R2 1K D1 1n4148 R3 3.6K CFET RF_COIL2 RFR10 10K RFC5 2.2nF VCC GND RF_COIL2 RF_COIL1 RF_CLK RXD TXD CNP2/P0.0 1 P1.7 2 P1.6 3 RST/P1.5 4 VSS 5 X1/P2.1 6 X2/CLKOUT/P2.0 7 INT1/P1.4 8 SDA/INT0/P1.3 9 SCL/T0/P1.2 10P1.1/RXD11 P1.0/TXD12 P0.7/T113 P0.6/CMP114 VDD15 P0.5/CMPREF16 P0.4/CIN1A17 P0.3/CIN1B18 P0.2/CIN2A19 P0.1/CIN2B20 U1 LPC764 RF_CLK X1 6M C1 22P C2 22P GND +5V C3 104 GND CFET OUT E1 10U/16V C4 104 GND GND RXD TXD ANT=737UH TO CPU PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.com.cn