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ST3917 数据表(PDF) 14 Page - STMicroelectronics |
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ST3917 数据表(HTML) 14 Page - STMicroelectronics |
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14 / 16 page ![]() 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 C1 C2 C3 SEL OS C P ULSE MODE/PT HKS GND RXOUT GRX RXIN I RE F V CC R1 R2 R3 R4 MU/MFI V DD GDTMF MIC+ MIC- GTX REG LN ILINE LED S T3917A/B 123 456 789 * 0# FLASH TONE /PULSE P AUSE LND 3.58MHz 100k Ω P ulse DTMF HKS2 100k Ω 4.7 F 3.6k Ω + + 3.3k Ω 10nF 470nF 47k Ω 10 F + LED Zside tone Microphone 3.9k Ω 4.7nF 620 Ω BAT42 + 5.6V Ce ra mic Options 2S A1013 100k Ω BF393 5.6k Ω 10V 10M Ω 1 2 3 45 6 7 8 + 100nF 1 F 10 Ω A B SE CRE T TYPICAL APPLICATION ST3917A - ST3917B 14/16 |
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