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UM0629 数据表(PDF) 21 Page - STMicroelectronics |
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UM0629 数据表(HTML) 21 Page - STMicroelectronics |
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21 / 26 page ![]() Figure 14. STM8L1/L2 motherboard audio STMicroelectronics Title: Number: Rev: Sheet A.1(PCB.SCH) Date: 1/21/2009 1 2 U11 KECG2740TBL 2 1 U9 KDMG15008-03 C39 180pF C28 100nF R60 100K R61 100K Standby 1 Bypass 2 Vin+ 3 Vin- 4 Uout1 5 VCC 6 GND 7 Vout2 8 U10 TS4871IST R50 10K JP10 +3V3 +3V3 C27 100nF C34 2.2uF R57 33K R52 47K C30 470pF C35 2.2uF C36 100uF TP1 Audio TP2 MIC_OUT TP3 MIC+ R56 1K R51 100 R59 2.2K C37 47pF MCU_VDD R64 15K R58 0(don't solder) R47 0 2 RV2 50K 2 RV3 do not fit Speaker+ Speaker- 1 10 2 CN9 ST-613 C38 do not fit R48 0 R49 0 Audio_PWM MIC_OUT Speaker Microphone 4 3 1 U12 TS461CLT C29 10uF C40 4.7uF C42 2.2uF R62 18K MCU_VDD R65 82K R63 680 C41 4.7uF MCU_VDD R53 1.2K C31 33nF MB709 STM8L1/L2-MB Audio 1 2 3 JP9 BEEP |
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