EESchema Schematic File Version 2 LIBS:stmbl LIBS:transistors LIBS:stm32 LIBS:conn LIBS:power LIBS:74xgxx LIBS:74xx LIBS:ac-dc LIBS:actel LIBS:adc-dac LIBS:Altera LIBS:analog_devices LIBS:analog_switches LIBS:atmel LIBS:audio LIBS:brooktre LIBS:cmos_ieee LIBS:cmos4000 LIBS:contrib LIBS:cypress LIBS:dc-dc LIBS:device LIBS:digital-audio LIBS:diode LIBS:display LIBS:dsp LIBS:elec-unifil LIBS:ESD_Protection LIBS:ftdi LIBS:gennum LIBS:graphic LIBS:hc11 LIBS:intel LIBS:interface LIBS:ir LIBS:Lattice LIBS:linear LIBS:logo LIBS:maxim LIBS:memory LIBS:microchip_dspic33dsc LIBS:microchip_pic10mcu LIBS:microchip_pic12mcu LIBS:microchip_pic16mcu LIBS:microchip_pic18mcu LIBS:microchip_pic32mcu LIBS:microchip LIBS:microcontrollers LIBS:motor_drivers LIBS:motorola LIBS:msp430 LIBS:nordicsemi LIBS:nxp_armmcu LIBS:onsemi LIBS:opto LIBS:Oscillators LIBS:philips LIBS:Power_Management LIBS:powerint LIBS:pspice LIBS:references LIBS:regul LIBS:relays LIBS:rfcom LIBS:sensors LIBS:silabs LIBS:siliconi LIBS:stm8 LIBS:supertex LIBS:switches LIBS:texas LIBS:transf LIBS:ttl_ieee LIBS:valves LIBS:video LIBS:Xicor LIBS:stmsp-cache EELAYER 26 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 5 10 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L SP3485EN U8 U 1 1 565DD0E7 P 5450 1400 F 0 "U8" H 5150 1750 50 0000 L CNN F 1 "SN65176B" H 5550 1750 50 0000 L CNN F 2 "stmbl:SOIC-8-N" H 5450 1400 50 0000 C CIN F 3 "" H 5450 1400 60 0000 C CNN 1 5450 1400 -1 0 0 -1 $EndComp $Comp L R R10 U 1 1 565DD7F2 P 4900 1400 F 0 "R10" V 4980 1400 50 0000 C CNN F 1 "1k" V 4900 1400 50 0000 C CNN F 2 "stmbl:R_0603" V 4830 1400 30 0001 C CNN F 3 "" H 4900 1400 30 0000 C CNN 1 4900 1400 1 0 0 -1 $EndComp $Comp L C C13 U 1 1 565DD843 P 6500 1400 F 0 "C13" H 6525 1500 50 0000 L CNN F 1 "100n" H 6525 1300 50 0000 L CNN F 2 "stmbl:C_0603" H 6538 1250 30 0001 C CNN F 3 "" H 6500 1400 60 0000 C CNN 1 6500 1400 1 0 0 -1 $EndComp $Comp L GND #PWR038 U 1 1 565DD8E9 P 5450 1900 F 0 "#PWR038" H 5450 1650 50 0001 C CNN F 1 "GND" H 5450 1750 50 0000 C CNN F 2 "" H 5450 1900 60 0000 C CNN F 3 "" H 5450 1900 60 0000 C CNN 1 5450 1900 1 0 0 -1 $EndComp Text HLabel 6250 2750 2 60 Input ~ 0 DATA0 Text HLabel 5950 2950 2 60 Input ~ 0 EN0 $Comp L R R9 U 1 1 56F9D4F8 P 4900 1000 F 0 "R9" V 4980 1000 50 0000 C CNN F 1 "10k" V 4900 1000 50 0000 C CNN F 2 "stmbl:R_0603" V 4830 1000 30 0001 C CNN F 3 "" H 4900 1000 30 0000 C CNN 1 4900 1000 1 0 0 -1 $EndComp $Comp L R R11 U 1 1 56F9D5CB P 4900 1800 F 0 "R11" V 4980 1800 50 0000 C CNN F 1 "10k" V 4900 1800 50 0000 C CNN F 2 "stmbl:R_0603" V 4830 1800 30 0001 C CNN F 3 "" H 4900 1800 30 0000 C CNN 1 4900 1800 1 0 0 -1 $EndComp $Comp L R R21 U 1 1 57758B35 P 6900 1600 F 0 "R21" V 6980 1600 50 0000 C CNN F 1 "1k" V 6900 1600 50 0000 C CNN F 2 "stmbl:R_0603" V 6830 1600 30 0001 C CNN F 3 "" H 6900 1600 30 0000 C CNN 1 6900 1600 1 0 0 -1 $EndComp $Comp L GND #PWR039 U 1 1 57758BC5 P 6900 1800 F 0 "#PWR039" H 6900 1550 50 0001 C CNN F 1 "GND" H 6900 1650 50 0000 C CNN F 2 "" H 6900 1800 60 0000 C CNN F 3 "" H 6900 1800 60 0000 C CNN 1 6900 1800 1 0 0 -1 $EndComp Text HLabel 6950 2950 2 60 Input ~ 0 EN0 $Comp L INDUCTOR L2 U 1 1 57AD7F96 P 7700 950 F 0 "L2" V 7650 950 50 0000 C CNN F 1 "220r 700mA" V 7800 950 50 0000 C CNN F 2 "stmbl:R_0603" H 7700 950 50 0001 C CNN F 3 "" H 7700 950 50 0000 C CNN 1 7700 950 0 -1 -1 0 $EndComp $Comp L C C17 U 1 1 57AD80BE P 8100 1200 F 0 "C17" H 8125 1300 50 0000 L CNN F 1 "100n" H 8125 1100 50 0000 L CNN F 2 "stmbl:C_0603" H 8138 1050 30 0001 C CNN F 3 "" H 8100 1200 60 0000 C CNN 1 8100 1200 1 0 0 -1 $EndComp $Comp L GND #PWR040 U 1 1 57AD9057 P 8100 1450 F 0 "#PWR040" H 8100 1200 50 0001 C CNN F 1 "GND" H 8100 1300 50 0000 C CNN F 2 "" H 8100 1450 60 0000 C CNN F 3 "" H 8100 1450 60 0000 C CNN 1 8100 1450 1 0 0 -1 $EndComp Wire Wire Line 5850 1300 5900 1300 Wire Wire Line 5900 1300 5900 1500 Wire Wire Line 5900 1500 5850 1500 Wire Wire Line 5450 1800 5450 1900 Wire Wire Line 5050 1300 5000 1300 Wire Wire Line 5000 1300 5000 1250 Wire Wire Line 5000 1250 4800 1250 Wire Wire Line 5050 1500 5000 1500 Wire Wire Line 5000 1500 5000 1550 Wire Wire Line 5000 1550 4800 1550 Wire Wire Line 6500 1850 6500 1550 Wire Wire Line 5150 1850 6500 1850 Wire Wire Line 6500 950 6500 1250 Wire Wire Line 5150 950 7400 950 Connection ~ 5450 950 Connection ~ 5450 1850 Wire Wire Line 5850 1200 6250 1200 Wire Wire Line 5900 1400 5950 1400 Connection ~ 5900 1400 Wire Wire Line 6200 1600 5850 1600 Connection ~ 4900 1250 Connection ~ 4900 1550 Connection ~ 6200 1200 Wire Wire Line 4900 1550 4900 1650 Wire Wire Line 4900 1250 4900 1150 Wire Wire Line 4900 850 4900 750 Wire Wire Line 4900 750 5150 750 Wire Wire Line 5150 750 5150 950 Wire Wire Line 4900 1950 4900 2050 Wire Wire Line 4900 2050 5150 2050 Wire Wire Line 5150 2050 5150 1850 Wire Wire Line 6950 1400 6900 1400 Wire Wire Line 6900 1400 6900 1450 Wire Wire Line 6900 1750 6900 1800 Wire Wire Line 5450 950 5450 1000 Wire Wire Line 8100 850 8100 1050 Wire Wire Line 8000 950 8100 950 Connection ~ 8100 950 Connection ~ 6500 950 Wire Wire Line 8100 1350 8100 1450 Wire Wire Line 6200 1200 6200 1600 $Comp L +5V #PWR041 U 1 1 5918C044 P 8100 850 F 0 "#PWR041" H 8100 700 50 0001 C CNN F 1 "+5V" H 8100 990 50 0000 C CNN F 2 "" H 8100 850 50 0000 C CNN F 3 "" H 8100 850 50 0000 C CNN 1 8100 850 1 0 0 -1 $EndComp Text HLabel 4800 2800 0 60 Input ~ 0 A0 Text HLabel 4800 3100 0 60 Input ~ 0 B0 $Comp L SP3485EN U9 U 1 1 59233172 P 5450 2950 F 0 "U9" H 5150 3300 50 0000 L CNN F 1 "SN65176B" H 5550 3300 50 0000 L CNN F 2 "stmbl:SOIC-8-N" H 5450 2950 50 0000 C CIN F 3 "" H 5450 2950 60 0000 C CNN 1 5450 2950 -1 0 0 -1 $EndComp $Comp L R R28 U 1 1 59233178 P 4900 2950 F 0 "R28" V 4980 2950 50 0000 C CNN F 1 "1k" V 4900 2950 50 0000 C CNN F 2 "stmbl:R_0603" V 4830 2950 30 0001 C CNN F 3 "" H 4900 2950 30 0000 C CNN 1 4900 2950 1 0 0 -1 $EndComp $Comp L C C29 U 1 1 5923317E P 6500 2950 F 0 "C29" H 6525 3050 50 0000 L CNN F 1 "100n" H 6525 2850 50 0000 L CNN F 2 "stmbl:C_0603" H 6538 2800 30 0001 C CNN F 3 "" H 6500 2950 60 0000 C CNN 1 6500 2950 1 0 0 -1 $EndComp $Comp L GND #PWR042 U 1 1 59233184 P 5450 3450 F 0 "#PWR042" H 5450 3200 50 0001 C CNN F 1 "GND" H 5450 3300 50 0000 C CNN F 2 "" H 5450 3450 60 0000 C CNN F 3 "" H 5450 3450 60 0000 C CNN 1 5450 3450 1 0 0 -1 $EndComp Text HLabel 6250 1200 2 60 Input ~ 0 DATA1 Text HLabel 5950 1400 2 60 Input ~ 0 EN1 $Comp L R R27 U 1 1 5923318C P 4900 2550 F 0 "R27" V 4980 2550 50 0000 C CNN F 1 "10k" V 4900 2550 50 0000 C CNN F 2 "stmbl:R_0603" V 4830 2550 30 0001 C CNN F 3 "" H 4900 2550 30 0000 C CNN 1 4900 2550 1 0 0 -1 $EndComp $Comp L R R29 U 1 1 59233192 P 4900 3350 F 0 "R29" V 4980 3350 50 0000 C CNN F 1 "10k" V 4900 3350 50 0000 C CNN F 2 "stmbl:R_0603" V 4830 3350 30 0001 C CNN F 3 "" H 4900 3350 30 0000 C CNN 1 4900 3350 1 0 0 -1 $EndComp Wire Wire Line 5850 2850 5900 2850 Wire Wire Line 5900 2850 5900 3050 Wire Wire Line 5900 3050 5850 3050 Wire Wire Line 5450 3350 5450 3450 Wire Wire Line 5050 2850 5000 2850 Wire Wire Line 5000 2850 5000 2800 Wire Wire Line 5000 2800 4800 2800 Wire Wire Line 5050 3050 5000 3050 Wire Wire Line 5000 3050 5000 3100 Wire Wire Line 5000 3100 4800 3100 Wire Wire Line 6500 3400 6500 3100 Wire Wire Line 5150 3400 6500 3400 Wire Wire Line 6500 2500 6500 2800 Wire Wire Line 5150 2500 7250 2500 Connection ~ 5450 2500 Connection ~ 5450 3400 Wire Wire Line 5850 2750 6250 2750 Wire Wire Line 5900 2950 5950 2950 Connection ~ 5900 2950 Wire Wire Line 6200 3150 5850 3150 Connection ~ 4900 2800 Connection ~ 4900 3100 Connection ~ 6200 2750 Wire Wire Line 4900 3100 4900 3200 Wire Wire Line 4900 2800 4900 2700 Wire Wire Line 4900 2400 4900 2300 Wire Wire Line 4900 2300 5150 2300 Wire Wire Line 5150 2300 5150 2500 Wire Wire Line 4900 3500 4900 3600 Wire Wire Line 4900 3600 5150 3600 Wire Wire Line 5150 3600 5150 3400 Wire Wire Line 5450 2500 5450 2550 Connection ~ 6500 2500 Wire Wire Line 6200 2750 6200 3150 Text HLabel 4800 1250 0 60 Input ~ 0 A1 Text HLabel 4800 1550 0 60 Input ~ 0 B1 $Comp L R R30 U 1 1 59233357 P 6900 3150 F 0 "R30" V 6980 3150 50 0000 C CNN F 1 "1k" V 6900 3150 50 0000 C CNN F 2 "stmbl:R_0603" V 6830 3150 30 0001 C CNN F 3 "" H 6900 3150 30 0000 C CNN 1 6900 3150 1 0 0 -1 $EndComp $Comp L GND #PWR043 U 1 1 5923335D P 6900 3350 F 0 "#PWR043" H 6900 3100 50 0001 C CNN F 1 "GND" H 6900 3200 50 0000 C CNN F 2 "" H 6900 3350 60 0000 C CNN F 3 "" H 6900 3350 60 0000 C CNN 1 6900 3350 1 0 0 -1 $EndComp Text HLabel 6950 1400 2 60 Input ~ 0 EN1 Wire Wire Line 6950 2950 6900 2950 Wire Wire Line 6900 2950 6900 3000 Wire Wire Line 6900 3300 6900 3350 Wire Wire Line 7250 2500 7250 950 Connection ~ 7250 950 $Comp L R R33 U 1 1 59447745 P 5700 4600 F 0 "R33" V 5780 4600 50 0000 C CNN F 1 "1k" V 5700 4600 50 0000 C CNN F 2 "stmbl:R_0603" V 5630 4600 30 0001 C CNN F 3 "" H 5700 4600 30 0000 C CNN 1 5700 4600 0 1 1 0 $EndComp Text HLabel 5950 4200 2 60 Input ~ 0 EN1 Text HLabel 5450 4200 0 60 Input ~ 0 B1 $Comp L R R38 U 1 1 59447977 P 5700 4800 F 0 "R38" V 5780 4800 50 0000 C CNN F 1 "1k" V 5700 4800 50 0000 C CNN F 2 "stmbl:R_0603" V 5630 4800 30 0001 C CNN F 3 "" H 5700 4800 30 0000 C CNN 1 5700 4800 0 1 1 0 $EndComp Text HLabel 5950 4400 2 60 Input ~ 0 DATA1 Text HLabel 5450 4400 0 60 Input ~ 0 A1 Wire Wire Line 5450 4200 5550 4200 Wire Wire Line 5450 4400 5550 4400 Wire Wire Line 5850 4200 5950 4200 Wire Wire Line 5850 4400 5950 4400 $Comp L R R41 U 1 1 59447BF9 P 5700 4200 F 0 "R41" V 5780 4200 50 0000 C CNN F 1 "1k" V 5700 4200 50 0000 C CNN F 2 "stmbl:R_0603" V 5630 4200 30 0001 C CNN F 3 "" H 5700 4200 30 0000 C CNN 1 5700 4200 0 1 1 0 $EndComp Text HLabel 5950 4600 2 60 Input ~ 0 EN0 Text HLabel 5450 4600 0 60 Input ~ 0 B0 $Comp L R R42 U 1 1 59447C01 P 5700 4400 F 0 "R42" V 5780 4400 50 0000 C CNN F 1 "1k" V 5700 4400 50 0000 C CNN F 2 "stmbl:R_0603" V 5630 4400 30 0001 C CNN F 3 "" H 5700 4400 30 0000 C CNN 1 5700 4400 0 1 1 0 $EndComp Text HLabel 5950 4800 2 60 Input ~ 0 DATA0 Text HLabel 5450 4800 0 60 Input ~ 0 A0 Wire Wire Line 5450 4600 5550 4600 Wire Wire Line 5450 4800 5550 4800 Wire Wire Line 5850 4600 5950 4600 Wire Wire Line 5850 4800 5950 4800 Text Notes 5350 4050 0 60 ~ 0 Do not mount! Wire Notes Line 5200 4100 6350 4100 Wire Notes Line 6350 4100 6350 4950 Wire Notes Line 6350 4950 5200 4950 Wire Notes Line 5200 4950 5200 4100 $EndSCHEMATC