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FS9721_LP1 датащи(PDF) 37 Page - Fortune Semiconductor Corp. |
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FS9721_LP1 датащи(HTML) 37 Page - Fortune Semiconductor Corp. |
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37 / 41 page ![]() FS9721_LP1 Rev. 2.0 38/41 16. Demo Board 1 2 3 4 A B C D 4 3 2 1 D C B A Title Number Revision Size Letter Date: 25-Feb-2002 Sheet of File: D:\Schematic\FS9711_6\9721V1-6.sch Drawn By: COM2 81 COM3 82 COM4 83 ENTX 84 BEEPER 85 BLOUT 86 RST 87 N.C. 88 REFI 89 REFO 90 FTA 91 N.C. 92 FTB 93 FTC 94 TSTC 95 OPIN 96 N.C. 97 OP1O 98 N.C. 99 OP2P 100 SELECT 31 RANGE 32 REL 33 HZ/DUTY 34 HOLD 35 CAP 36 MEA4 37 MEA3 38 MEA2 39 MEA1 40 LCDC1 41 LCDC2 42 TSTA 43 VSS 44 N.C. 45 AGND 46 N.C. 47 VDD 48 N.C. 49 N.C. 50 FS9721_LP1 U1 FS9711G/I U2 4M Hz R1 1M R4 200K C1 10uF C2 10uF R5 100k 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 SW1 SW DIP-8 S1 SW-PB S2 SW-PB S3 SW-PB S4 SW-PB S5 SW-PB 1 2 4 3 SW2 SW DIP-2 + C4 10uF VDD C5 47nF R11 10M R12 1K R13 R14 R15 R18 VR1 R6 C6 R19 900K R7 100K R16 10K J1 OHM/CAP/DIODE J2 DCV/ACV J3 DCmV/OHM/CAP/Diode COM1 U5 B1 BUZZER R8 100K C10 10nF VDD R20 40K R22 20K VR2 VR10K R23 500K C7 27nF R24 90K R17 10K VR3 VR2K R25 28.5K R26 22K R27 22K D1 1N914 D2 1N914 R9 100K R10 100K C8 27nF C9 27nF BLOUT FS9721 DESIGN KIT COM3 COM4 COM5 C3 ENTX ENTX R21 40K U3 SW-SPDT UB1 3V BATTERY ADP/ADP1 U6 R3 1M J4 Hz ADP2 VR4 40k L1 DioS RSO1 3K VDD TXD RS232 ENABLE AC GAIN L2 DioR port1 DB9M 1 2 4 3 SW3 SW DIP-2 U4 V/OHM/Diode/CAP C11 10uF R28 180 1 2 L3 LED VREF TEMP GAIN R29 220 S6 SW-PB HZ/DUTY HOLD REL RANGE SELECT BLCTR SELECT J5 hFE Input J6 ADP Input ADP J7 ADP2 Input ADP2 J8 JMP1 J9 Temp1 J10 Temp2 + C12 10uF TSTB TSTB ADP2 U7 + C13 10uF R2 0.1uF C? 0.47uF C? 0.47uF Diagram 38 Demo Board Schematic |
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