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BK3254SS24 Datasheet(PDF) 9 Page - Beken Corporation |
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BK3254SS24 Datasheet(HTML) 9 Page - Beken Corporation |
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9 / 17 page  BK3254 Datasheet v 0.5 © 2011 Beken Corporation Proprietary and Confidential Page 9 of 17 9 VREF1AUD Audio reference; Connected to 4.7uF decoupling cap for high audio quality 10 FMINP FM input positive 11 FMGND GND of FM 12 MICINP Microphone input positive 13 USBP(GPIO2) USB positive or GPIO 2 14 USBN(GPIO3) USB negative or GPIO 3 15 GPIO22 GPIO 22 16 VDD3IO_FLA LDO output for FLASH, 3 V by default, local 1uF decoupling cap 17 VCC4BAT Battery power input, 2.8 V ~ 5.5 V 18 VSYS3V2 LDO output 3.2 V 19 VDD12 LDO output 1.2 V; Connected to 1uF Decoupling cap 20 GPIO19(JTMS) GPIO 19 21 GPIO18(JTCK) GPIO 18 22 GPIO21(JTDO) GPIO 21 23 GPIO20(JTDI) GPIO 20 24 GPIO14 GPIO 14 25 GPIO13 GPIO 13 26 GPIO12 GPIO 12 27 VCC3XTAL XTAL power supply, local 1uF decoupling cap 28 XO XTAL output 29 XI XTAL input 30 VCCSD LDO Output 2.9V; Local 1uF Decoupling cap 31 GPIO1 GPIO 1 32 GPIO0 GPIO 0 |
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