EESchema Schematic File Version 2 LIBS:power LIBS:device LIBS:transistors LIBS:conn LIBS:linear LIBS:regul LIBS:74xx LIBS:cmos4000 LIBS:adc-dac LIBS:memory LIBS:xilinx LIBS:microcontrollers LIBS:dsp LIBS:microchip LIBS:analog_switches LIBS:motorola LIBS:texas LIBS:intel LIBS:audio LIBS:interface LIBS:digital-audio LIBS:philips LIBS:display LIBS:cypress LIBS:siliconi LIBS:opto LIBS:atmel LIBS:contrib LIBS:valves LIBS:DonB LIBS:BalloonRadio-cache EELAYER 25 0 EELAYER END $Descr USLetter 11000 8500 encoding utf-8 Sheet 1 4 Title "NavSpark MicroAPRS balloon radio" Date "" Rev "" Comp "" Comment1 "Donald Bindner" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L ATMEGA328-A IC1 U 1 1 5561465C P 2500 1900 F 0 "IC1" H 1750 3150 40 0000 L BNN F 1 "ATMEGA328-A" H 2900 500 40 0000 L BNN F 2 "Housings_QFP:TQFP-32_7x7mm_Pitch0.8mm" H 2500 1900 30 0000 C CIN F 3 "" H 2500 1900 60 0000 C CNN 1 2500 1900 1 0 0 -1 $EndComp $Comp L NavSpark U1 U 1 1 55614BB1 P 8850 2000 F 0 "U1" H 8850 2900 60 0000 C CNN F 1 "NavSpark" H 8850 3050 60 0000 C CNN F 2 "DonB:NavSpark" H 8850 2000 60 0001 C CNN F 3 "" H 8850 2000 60 0000 C CNN 1 8850 2000 1 0 0 -1 $EndComp $Comp L +BATT #PWR01 U 1 1 55614E66 P 9700 1400 F 0 "#PWR01" H 9700 1250 50 0001 C CNN F 1 "+BATT" V 9700 1650 50 0000 C CNN F 2 "" H 9700 1400 60 0000 C CNN F 3 "" H 9700 1400 60 0000 C CNN 1 9700 1400 0 1 1 0 $EndComp Text Notes 9800 1350 0 60 ~ 0 3.6V-10V\n NoConn ~ 9450 1500 $Comp L +3.3V #PWR02 U 1 1 55614EDA P 9700 1600 F 0 "#PWR02" H 9700 1450 50 0001 C CNN F 1 "+3.3V" V 9700 1850 50 0000 C CNN F 2 "" H 9700 1600 60 0000 C CNN F 3 "" H 9700 1600 60 0000 C CNN 1 9700 1600 0 1 1 0 $EndComp $Comp L GND #PWR03 U 1 1 55614F9A P 9700 1700 F 0 "#PWR03" H 9700 1450 50 0001 C CNN F 1 "GND" V 9700 1500 50 0000 C CNN F 2 "" H 9700 1700 60 0000 C CNN F 3 "" H 9700 1700 60 0000 C CNN 1 9700 1700 0 -1 -1 0 $EndComp $Comp L +3.3V #PWR04 U 1 1 55614FEB P 1100 800 F 0 "#PWR04" H 1100 650 50 0001 C CNN F 1 "+3.3V" V 1100 1050 50 0000 C CNN F 2 "" H 1100 800 60 0000 C CNN F 3 "" H 1100 800 60 0000 C CNN 1 1100 800 0 -1 -1 0 $EndComp $Comp L GND #PWR05 U 1 1 5561504E P 1350 2900 F 0 "#PWR05" H 1350 2650 50 0001 C CNN F 1 "GND" V 1350 2700 50 0000 C CNN F 2 "" H 1350 2900 60 0000 C CNN F 3 "" H 1350 2900 60 0000 C CNN 1 1350 2900 0 1 1 0 $EndComp $Comp L GND #PWR06 U 1 1 5561F147 P 1300 1700 F 0 "#PWR06" H 1300 1450 50 0001 C CNN F 1 "GND" H 1400 1550 50 0000 C CNN F 2 "" H 1300 1700 60 0000 C CNN F 3 "" H 1300 1700 60 0000 C CNN 1 1300 1700 1 0 0 -1 $EndComp $Comp L C C8 U 1 1 5561F15C P 1300 1550 F 0 "C8" H 1325 1650 50 0000 L CNN F 1 "100nF" H 1325 1450 50 0000 L CNN F 2 "DonB:C_0805_HandSoldering" H 1338 1400 30 0001 C CNN F 3 "" H 1300 1550 60 0000 C CNN 1 1300 1550 1 0 0 -1 $EndComp NoConn ~ 1600 2150 NoConn ~ 1600 2250 $Comp L C C7 U 1 1 5561F259 P 1300 950 F 0 "C7" H 1325 1050 50 0000 L CNN F 1 "100nF" H 1325 850 50 0000 L CNN F 2 "DonB:C_0805_HandSoldering" H 1338 800 30 0001 C CNN F 3 "" H 1300 950 60 0000 C CNN 1 1300 950 1 0 0 -1 $EndComp $Comp L GND #PWR07 U 1 1 5561F2AD P 1300 1100 F 0 "#PWR07" H 1300 850 50 0001 C CNN F 1 "GND" H 1400 950 50 0000 C CNN F 2 "" H 1300 1100 60 0000 C CNN F 3 "" H 1300 1100 60 0000 C CNN 1 1300 1100 1 0 0 -1 $EndComp $Comp L Crystal Y1 U 1 1 5561F562 P 4600 1450 F 0 "Y1" H 4600 1600 50 0000 C CNN F 1 "8MHz" H 4600 1300 50 0000 C CNN F 2 "Crystals:Crystal_HC49-SD_SMD" H 4600 1450 60 0001 C CNN F 3 "" H 4600 1450 60 0000 C CNN 1 4600 1450 0 1 1 0 $EndComp $Comp L C C11 U 1 1 5561F5F6 P 4950 1300 F 0 "C11" H 4975 1400 50 0000 L CNN F 1 "33pF" H 4975 1200 50 0000 L CNN F 2 "DonB:C_0805_HandSoldering" H 4988 1150 30 0001 C CNN F 3 "" H 4950 1300 60 0000 C CNN 1 4950 1300 0 1 1 0 $EndComp $Comp L C C12 U 1 1 5561F66B P 4950 1600 F 0 "C12" H 4975 1700 50 0000 L CNN F 1 "33pF" H 4975 1500 50 0000 L CNN F 2 "DonB:C_0805_HandSoldering" H 4988 1450 30 0001 C CNN F 3 "" H 4950 1600 60 0000 C CNN 1 4950 1600 0 1 1 0 $EndComp $Comp L GND #PWR08 U 1 1 5561F766 P 5150 1450 F 0 "#PWR08" H 5150 1200 50 0001 C CNN F 1 "GND" H 5250 1300 50 0000 C CNN F 2 "" H 5150 1450 60 0000 C CNN F 3 "" H 5150 1450 60 0000 C CNN 1 5150 1450 0 -1 -1 0 $EndComp Text GLabel 4000 900 2 50 Input ~ 0 led_rx Text GLabel 4000 1000 2 50 Input ~ 0 led_tx Text GLabel 4000 1100 2 50 Input ~ 0 mosi Text GLabel 4000 1200 2 50 Input ~ 0 miso Text GLabel 4000 1300 2 50 Input ~ 0 sck Text GLabel 4000 2400 2 50 Input ~ 0 rx328 Text GLabel 4000 2500 2 50 Input ~ 0 tx328 Text GLabel 4000 2700 2 50 Input ~ 0 ptt Text GLabel 4000 2800 2 50 Input ~ 0 sig_out_1 Text GLabel 4000 2900 2 50 Input ~ 0 sig_out_2 Text GLabel 4000 3000 2 50 Input ~ 0 sig_out_3 Text GLabel 4000 3100 2 50 Input ~ 0 sig_out_4 $Comp L LED D2 U 1 1 55620513 P 2350 3650 F 0 "D2" H 2350 3750 50 0000 C CNN F 1 "LED" H 2350 3550 50 0000 C CNN F 2 "LEDs:LED-0805" H 2350 3650 60 0001 C CNN F 3 "" H 2350 3650 60 0000 C CNN 1 2350 3650 -1 0 0 1 $EndComp $Comp L LED D3 U 1 1 5562057A P 2350 4000 F 0 "D3" H 2350 4100 50 0000 C CNN F 1 "LED" H 2350 3900 50 0000 C CNN F 2 "LEDs:LED-0805" H 2350 4000 60 0001 C CNN F 3 "" H 2350 4000 60 0000 C CNN 1 2350 4000 -1 0 0 1 $EndComp $Comp L R R10 U 1 1 55620715 P 2800 3650 F 0 "R10" V 2880 3650 50 0000 C CNN F 1 "1K" V 2800 3650 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 2730 3650 30 0001 C CNN F 3 "" H 2800 3650 30 0000 C CNN 1 2800 3650 0 1 1 0 $EndComp $Comp L R R11 U 1 1 55620778 P 2800 4000 F 0 "R11" V 2880 4000 50 0000 C CNN F 1 "1K" V 2800 4000 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 2730 4000 30 0001 C CNN F 3 "" H 2800 4000 30 0000 C CNN 1 2800 4000 0 1 1 0 $EndComp $Comp L GND #PWR09 U 1 1 55620854 P 3050 3650 F 0 "#PWR09" H 3050 3400 50 0001 C CNN F 1 "GND" V 3050 3450 50 0000 C CNN F 2 "" H 3050 3650 60 0000 C CNN F 3 "" H 3050 3650 60 0000 C CNN 1 3050 3650 0 -1 -1 0 $EndComp $Comp L GND #PWR010 U 1 1 556208CF P 3050 4000 F 0 "#PWR010" H 3050 3750 50 0001 C CNN F 1 "GND" V 3050 3800 50 0000 C CNN F 2 "" H 3050 4000 60 0000 C CNN F 3 "" H 3050 4000 60 0000 C CNN 1 3050 4000 0 -1 -1 0 $EndComp Text GLabel 2050 3650 0 50 Input ~ 0 led_tx Text GLabel 2050 4000 0 50 Input ~ 0 led_rx Text Notes 2800 4400 2 100 ~ 0 Processor $Comp L R R5 U 1 1 5562156D P 1950 5100 F 0 "R5" V 2030 5100 50 0000 C CNN F 1 "8.2K" V 1950 5100 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 1880 5100 30 0001 C CNN F 3 "" H 1950 5100 30 0000 C CNN 1 1950 5100 0 1 1 0 $EndComp $Comp L R R6 U 1 1 5562162D P 1950 5300 F 0 "R6" V 2030 5300 50 0000 C CNN F 1 "3.9K" V 1950 5300 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 1880 5300 30 0001 C CNN F 3 "" H 1950 5300 30 0000 C CNN 1 1950 5300 0 1 1 0 $EndComp $Comp L R R7 U 1 1 5562168D P 1950 5500 F 0 "R7" V 2030 5500 50 0000 C CNN F 1 "2.2K" V 1950 5500 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 1880 5500 30 0001 C CNN F 3 "" H 1950 5500 30 0000 C CNN 1 1950 5500 0 1 1 0 $EndComp $Comp L R R8 U 1 1 556216E7 P 1950 5700 F 0 "R8" V 2030 5700 50 0000 C CNN F 1 "1K" V 1950 5700 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 1880 5700 30 0001 C CNN F 3 "" H 1950 5700 30 0000 C CNN 1 1950 5700 0 1 1 0 $EndComp $Comp L R R9 U 1 1 556217C7 P 2300 6050 F 0 "R9" V 2380 6050 50 0000 C CNN F 1 "270R" V 2300 6050 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 2230 6050 30 0001 C CNN F 3 "" H 2300 6050 30 0000 C CNN 1 2300 6050 1 0 0 -1 $EndComp $Comp L C C9 U 1 1 5562186B P 2600 6050 F 0 "C9" H 2625 6150 50 0000 L CNN F 1 "100nF" H 2625 5950 50 0000 L CNN F 2 "DonB:C_0805_HandSoldering" H 2638 5900 30 0001 C CNN F 3 "" H 2600 6050 60 0000 C CNN 1 2600 6050 1 0 0 -1 $EndComp $Comp L GND #PWR011 U 1 1 55621ADB P 2300 6350 F 0 "#PWR011" H 2300 6100 50 0001 C CNN F 1 "GND" H 2200 6200 50 0000 C CNN F 2 "" H 2300 6350 60 0000 C CNN F 3 "" H 2300 6350 60 0000 C CNN 1 2300 6350 1 0 0 -1 $EndComp $Comp L C C10 U 1 1 55621F2B P 2900 5000 F 0 "C10" H 2925 5100 50 0000 L CNN F 1 "1uF" H 2925 4900 50 0000 L CNN F 2 "DonB:C_0805_HandSoldering" H 2938 4850 30 0001 C CNN F 3 "" H 2900 5000 60 0000 C CNN 1 2900 5000 0 1 1 0 $EndComp $Comp L R R12 U 1 1 5562202B P 3400 5350 F 0 "R12" V 3480 5350 50 0000 C CNN F 1 "15K" V 3400 5350 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 3330 5350 30 0001 C CNN F 3 "" H 3400 5350 30 0000 C CNN 1 3400 5350 1 0 0 -1 $EndComp $Comp L GND #PWR012 U 1 1 5562235D P 3400 6350 F 0 "#PWR012" H 3400 6100 50 0001 C CNN F 1 "GND" H 3300 6200 50 0000 C CNN F 2 "" H 3400 6350 60 0000 C CNN F 3 "" H 3400 6350 60 0000 C CNN 1 3400 6350 1 0 0 -1 $EndComp Text GLabel 3800 5700 2 50 Input ~ 0 mic_out Text GLabel 1500 5100 0 50 Input ~ 0 sig_out_1 Text GLabel 1500 5300 0 50 Input ~ 0 sig_out_2 Text GLabel 1500 5500 0 50 Input ~ 0 sig_out_3 Text GLabel 1500 5700 0 50 Input ~ 0 sig_out_4 Text Notes 3800 6950 2 100 ~ 0 Digital-to-analog (TX section) Text GLabel 7900 1500 0 50 Input ~ 0 txNav Text GLabel 7900 1400 0 50 Input ~ 0 rxNav NoConn ~ 8300 1600 NoConn ~ 8300 2300 NoConn ~ 8300 2500 NoConn ~ 9450 2500 NoConn ~ 9450 2400 Text GLabel 4000 2250 2 50 Input ~ 0 rst Text GLabel 9700 2000 2 50 Input ~ 0 rst Text GLabel 9700 1900 2 50 Input ~ 0 sck Text GLabel 7900 1900 0 50 Input ~ 0 mosi Text GLabel 7900 1800 0 50 Input ~ 0 miso $Comp L +BATT #PWR013 U 1 1 55627D7C P 5550 2950 F 0 "#PWR013" H 5550 2800 50 0001 C CNN F 1 "+BATT" V 5550 3200 50 0000 C CNN F 2 "" H 5550 2950 60 0000 C CNN F 3 "" H 5550 2950 60 0000 C CNN 1 5550 2950 0 -1 -1 0 $EndComp $Comp L R R16 U 1 1 55627E9D P 5850 2950 F 0 "R16" V 5930 2950 50 0000 C CNN F 1 "1M" V 5850 2950 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 5780 2950 30 0001 C CNN F 3 "" H 5850 2950 30 0000 C CNN 1 5850 2950 0 1 1 0 $EndComp $Comp L R R17 U 1 1 55627F2E P 6350 2950 F 0 "R17" V 6430 2950 50 0000 C CNN F 1 "100K" V 6350 2950 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 6280 2950 30 0001 C CNN F 3 "" H 6350 2950 30 0000 C CNN 1 6350 2950 0 1 1 0 $EndComp $Comp L GND #PWR014 U 1 1 55627FBC P 6700 2950 F 0 "#PWR014" H 6700 2700 50 0001 C CNN F 1 "GND" H 6800 2800 50 0000 C CNN F 2 "" H 6700 2950 60 0000 C CNN F 3 "" H 6700 2950 60 0000 C CNN 1 6700 2950 0 -1 -1 0 $EndComp Text GLabel 6100 3200 2 50 Input ~ 0 a1 $Sheet S 5150 5450 850 150 U 5562A9B4 F0 "Supply_3.3V" 100 F1 "file5562A9B3.sch" 100 $EndSheet Wire Wire Line 9450 1400 9700 1400 Wire Wire Line 9450 1600 9700 1600 Wire Wire Line 9450 1700 9700 1700 Wire Wire Line 1100 800 1600 800 Wire Wire Line 1600 800 1600 1100 Connection ~ 1600 900 Wire Wire Line 1350 2900 1600 2900 Wire Wire Line 1600 2900 1600 3100 Connection ~ 1600 3000 Wire Wire Line 3500 2900 4000 2900 Wire Wire Line 3500 3000 4000 3000 Wire Wire Line 3500 3100 4000 3100 Wire Wire Line 3500 2800 4000 2800 Wire Wire Line 1600 1400 1300 1400 Wire Wire Line 3500 1300 4000 1300 Wire Wire Line 3500 2700 4000 2700 Wire Wire Line 3500 2400 4000 2400 Wire Wire Line 3500 2500 4000 2500 Wire Wire Line 3500 1400 4400 1400 Wire Wire Line 4400 1400 4400 1300 Wire Wire Line 4400 1300 4800 1300 Wire Wire Line 3500 1500 4400 1500 Wire Wire Line 4400 1500 4400 1600 Wire Wire Line 4400 1600 4800 1600 Connection ~ 4600 1600 Connection ~ 4600 1300 Wire Wire Line 5100 1300 5100 1600 Wire Wire Line 5100 1450 5150 1450 Connection ~ 5100 1450 Wire Wire Line 3500 900 4000 900 Wire Wire Line 3500 1000 4000 1000 Wire Wire Line 3500 1100 4000 1100 Wire Wire Line 3500 1200 4000 1200 Wire Wire Line 2550 3650 2650 3650 Wire Wire Line 2550 4000 2650 4000 Wire Wire Line 2950 3650 3050 3650 Wire Wire Line 2950 4000 3050 4000 Wire Wire Line 2150 3650 2050 3650 Wire Wire Line 2150 4000 2050 4000 Wire Wire Line 2100 5100 2300 5100 Wire Wire Line 2300 5100 2300 5900 Wire Wire Line 2100 5300 2300 5300 Connection ~ 2300 5300 Wire Wire Line 2100 5500 2300 5500 Connection ~ 2300 5500 Wire Wire Line 2100 5700 2750 5700 Connection ~ 2300 5700 Wire Wire Line 2600 5700 2600 5900 Wire Wire Line 2300 6200 2300 6350 Wire Wire Line 2600 6200 2600 6300 Wire Wire Line 2600 6300 2300 6300 Connection ~ 2300 6300 Connection ~ 2600 5700 Wire Wire Line 3400 5000 3400 5200 Wire Wire Line 3400 6200 3400 6350 Wire Wire Line 3400 5500 3400 5900 Wire Wire Line 3400 5700 3800 5700 Connection ~ 3400 5700 Wire Wire Line 1800 5100 1500 5100 Wire Wire Line 1800 5300 1500 5300 Wire Wire Line 1800 5500 1500 5500 Wire Wire Line 1800 5700 1500 5700 Wire Wire Line 8300 1400 7900 1400 Wire Wire Line 8300 1500 7900 1500 Wire Wire Line 9450 1900 9700 1900 Wire Wire Line 9450 2000 9700 2000 Wire Wire Line 3500 2250 4000 2250 Wire Wire Line 8300 1800 7900 1800 Wire Wire Line 8300 1900 7900 1900 Wire Wire Line 5550 2950 5700 2950 Wire Wire Line 6000 2950 6200 2950 Wire Wire Line 6500 2950 6700 2950 Wire Wire Line 6100 2950 6100 3200 Connection ~ 6100 2950 Text GLabel 9700 2200 2 50 Input ~ 0 serial328 Wire Wire Line 9450 2200 9700 2200 $Sheet S 5150 5900 850 150 U 55672A6F F0 "Serial_Switch" 100 F1 "file55672A6E.sch" 100 $EndSheet Text GLabel 9700 2300 2 50 Input ~ 0 serialRadio Wire Wire Line 9450 2300 9700 2300 Text GLabel 9700 2100 2 50 Input ~ 0 powerSave Text GLabel 7900 1700 0 50 Input ~ 0 ptt Wire Wire Line 7900 1700 8300 1700 Wire Wire Line 9450 2100 9700 2100 Wire Wire Line 3500 1750 4000 1750 Text GLabel 4000 1750 2 50 Input ~ 0 a1 NoConn ~ 3500 1850 NoConn ~ 3500 1950 $Comp L +BATT #PWR015 U 1 1 5567D119 P 5700 4200 F 0 "#PWR015" H 5700 4050 50 0001 C CNN F 1 "+BATT" V 5700 4450 50 0000 C CNN F 2 "" H 5700 4200 60 0000 C CNN F 3 "" H 5700 4200 60 0000 C CNN 1 5700 4200 1 0 0 -1 $EndComp $Comp L +3.3VP #PWR016 U 1 1 5567D2D4 P 5900 4200 F 0 "#PWR016" H 6050 4150 50 0001 C CNN F 1 "+3.3VP" V 5900 4450 50 0000 C CNN F 2 "" H 5900 4200 60 0000 C CNN F 3 "" H 5900 4200 60 0000 C CNN 1 5900 4200 1 0 0 -1 $EndComp $Comp L GND #PWR017 U 1 1 5567D371 P 6100 4400 F 0 "#PWR017" H 6100 4150 50 0001 C CNN F 1 "GND" V 6100 4150 50 0000 C CNN F 2 "" H 6100 4400 60 0000 C CNN F 3 "" H 6100 4400 60 0000 C CNN 1 6100 4400 1 0 0 -1 $EndComp $Comp L PWR_FLAG #FLG018 U 1 1 5567D40F P 5700 4400 F 0 "#FLG018" H 5700 4495 50 0001 C CNN F 1 "PWR_FLAG" V 5700 4800 50 0000 C CNN F 2 "" H 5700 4400 60 0000 C CNN F 3 "" H 5700 4400 60 0000 C CNN 1 5700 4400 -1 0 0 1 $EndComp $Comp L PWR_FLAG #FLG019 U 1 1 5567D497 P 5900 4400 F 0 "#FLG019" H 5900 4495 50 0001 C CNN F 1 "PWR_FLAG" V 5900 4800 50 0000 C CNN F 2 "" H 5900 4400 60 0000 C CNN F 3 "" H 5900 4400 60 0000 C CNN 1 5900 4400 -1 0 0 1 $EndComp $Comp L PWR_FLAG #FLG020 U 1 1 5567D66A P 6100 4200 F 0 "#FLG020" H 6100 4295 50 0001 C CNN F 1 "PWR_FLAG" V 6100 4600 50 0000 C CNN F 2 "" H 6100 4200 60 0000 C CNN F 3 "" H 6100 4200 60 0000 C CNN 1 6100 4200 1 0 0 -1 $EndComp Wire Wire Line 5700 4200 5700 4400 Wire Wire Line 5900 4200 5900 4400 Wire Wire Line 6100 4200 6100 4400 Connection ~ 1300 800 Text Notes 6100 3350 0 50 ~ 0 Voltage detection $Comp L TESTPAD P2 U 1 1 5568D79B P 7750 5200 F 0 "P2" H 7750 5000 60 0000 C CNN F 1 "txRadio" H 7750 5400 60 0000 C CNN F 2 "DonB:TESTPIN" H 7750 5200 60 0001 C CNN F 3 "" H 7750 5200 60 0000 C CNN 1 7750 5200 -1 0 0 1 $EndComp $Comp L TESTPAD P1 U 1 1 5568D7A2 P 7750 4600 F 0 "P1" H 7750 4400 60 0000 C CNN F 1 "mic_out" H 7750 4800 60 0000 C CNN F 2 "DonB:TESTPIN" H 7750 4600 60 0001 C CNN F 3 "" H 7750 4600 60 0000 C CNN 1 7750 4600 -1 0 0 1 $EndComp $Comp L TESTPAD P4 U 1 1 5568D7A9 P 8250 5200 F 0 "P4" H 8250 5000 60 0000 C CNN F 1 "GND" H 8250 5400 60 0000 C CNN F 2 "DonB:TESTPIN" H 8250 5200 60 0001 C CNN F 3 "" H 8250 5200 60 0000 C CNN 1 8250 5200 -1 0 0 1 $EndComp $Comp L TESTPAD P3 U 1 1 5568D7B0 P 8250 4600 F 0 "P3" H 8250 4400 60 0000 C CNN F 1 "rxRadio" H 8250 4800 60 0000 C CNN F 2 "DonB:TESTPIN" H 8250 4600 60 0001 C CNN F 3 "" H 8250 4600 60 0000 C CNN 1 8250 4600 -1 0 0 1 $EndComp $Comp L TESTPAD P6 U 1 1 5568D7B7 P 8750 5200 F 0 "P6" H 8750 5000 60 0000 C CNN F 1 "+3.3V" H 8750 5400 60 0000 C CNN F 2 "DonB:TESTPIN" H 8750 5200 60 0001 C CNN F 3 "" H 8750 5200 60 0000 C CNN 1 8750 5200 -1 0 0 1 $EndComp $Comp L TESTPAD P5 U 1 1 5568D7BE P 8750 4600 F 0 "P5" H 8750 4400 60 0000 C CNN F 1 "GND" H 8750 4800 60 0000 C CNN F 2 "DonB:TESTPIN" H 8750 4600 60 0001 C CNN F 3 "" H 8750 4600 60 0000 C CNN 1 8750 4600 -1 0 0 1 $EndComp $Comp L TESTPAD P8 U 1 1 5568D7C5 P 9250 5200 F 0 "P8" H 9250 5000 60 0000 C CNN F 1 "powerSave" H 9250 5400 60 0000 C CNN F 2 "DonB:TESTPIN" H 9250 5200 60 0001 C CNN F 3 "" H 9250 5200 60 0000 C CNN 1 9250 5200 -1 0 0 1 $EndComp $Comp L TESTPAD P7 U 1 1 5568D7CC P 9250 4600 F 0 "P7" H 9250 4400 60 0000 C CNN F 1 "ptt" H 9250 4800 60 0000 C CNN F 2 "DonB:TESTPIN" H 9250 4600 60 0001 C CNN F 3 "" H 9250 4600 60 0000 C CNN 1 9250 4600 -1 0 0 1 $EndComp $Comp L TESTPAD P10 U 1 1 5568D7D3 P 9750 5200 F 0 "P10" H 9750 5000 60 0000 C CNN F 1 "af_out" H 9750 5400 60 0000 C CNN F 2 "DonB:TESTPIN" H 9750 5200 60 0001 C CNN F 3 "" H 9750 5200 60 0000 C CNN 1 9750 5200 -1 0 0 1 $EndComp $Comp L TESTPAD P9 U 1 1 5568D7DA P 9750 4600 F 0 "P9" H 9750 4400 60 0000 C CNN F 1 "sq" H 9750 4800 60 0000 C CNN F 2 "DonB:TESTPIN" H 9750 4600 60 0001 C CNN F 3 "" H 9750 4600 60 0000 C CNN 1 9750 4600 -1 0 0 1 $EndComp Text GLabel 7750 4200 0 50 Input ~ 0 mic_out Text GLabel 7750 5700 0 50 Input ~ 0 txRadio Text GLabel 8250 4200 0 50 Input ~ 0 rxRadio $Comp L GND #PWR021 U 1 1 5568D7E4 P 8250 5700 F 0 "#PWR021" H 8250 5450 50 0001 C CNN F 1 "GND" H 8150 5600 50 0000 C CNN F 2 "" H 8250 5700 60 0000 C CNN F 3 "" H 8250 5700 60 0000 C CNN 1 8250 5700 1 0 0 -1 $EndComp $Comp L +3.3VP #PWR022 U 1 1 5568D7EA P 8750 5700 F 0 "#PWR022" H 8900 5650 50 0001 C CNN F 1 "+3.3VP" H 8750 5800 50 0000 C CNN F 2 "" H 8750 5700 60 0000 C CNN F 3 "" H 8750 5700 60 0000 C CNN 1 8750 5700 -1 0 0 1 $EndComp Text GLabel 9750 4200 2 50 Input ~ 0 sq Text GLabel 9750 5700 2 50 Input ~ 0 af_out Text GLabel 9250 4200 2 50 Input ~ 0 ptt Text GLabel 9250 5700 2 50 Input ~ 0 powerSave $Comp L GND #PWR023 U 1 1 5568D7F4 P 8750 4200 F 0 "#PWR023" H 8750 3950 50 0001 C CNN F 1 "GND" H 8650 4100 50 0000 C CNN F 2 "" H 8750 4200 60 0000 C CNN F 3 "" H 8750 4200 60 0000 C CNN 1 8750 4200 -1 0 0 1 $EndComp Wire Wire Line 7750 4200 7750 4600 Wire Wire Line 7750 5200 7750 5700 Wire Wire Line 8250 4600 8250 4200 Wire Wire Line 8250 5200 8250 5700 Wire Wire Line 8750 5200 8750 5700 Wire Wire Line 8750 4600 8750 4200 Wire Wire Line 9250 4200 9250 4600 Wire Wire Line 9250 5200 9250 5700 Wire Wire Line 9750 4600 9750 4200 Wire Wire Line 9750 5200 9750 5700 Text Notes 7950 3900 0 100 ~ 0 Radio Board Header NoConn ~ 3500 800 NoConn ~ 3500 2050 NoConn ~ 3500 2150 NoConn ~ 9450 1800 NoConn ~ 8300 2000 NoConn ~ 8300 2200 NoConn ~ 8300 2100 Text Notes 9700 4100 0 50 ~ 0 (N/C) NoConn ~ 3500 2600 NoConn ~ 8300 2400 $Sheet S 5150 6400 850 150 U 5569A3BC F0 "RadioAudioOut" 100 F1 "RadioAudioOut.sch" 100 $EndSheet Text GLabel 3850 1650 2 50 Input ~ 0 sig_in_off Wire Wire Line 3500 1650 3850 1650 $Comp L +3.3V #PWR024 U 1 1 5569BA9A P 5550 2650 F 0 "#PWR024" H 5550 2500 50 0001 C CNN F 1 "+3.3V" V 5550 2900 50 0000 C CNN F 2 "" H 5550 2650 60 0000 C CNN F 3 "" H 5550 2650 60 0000 C CNN 1 5550 2650 0 -1 -1 0 $EndComp $Comp L R R18 U 1 1 5569BC25 P 5850 2650 F 0 "R18" V 5930 2650 50 0000 C CNN F 1 "4.7K" V 5850 2650 50 0000 C CNN F 2 "DonB:R_0805_HandSoldering" V 5780 2650 30 0001 C CNN F 3 "" H 5850 2650 30 0000 C CNN 1 5850 2650 0 1 1 0 $EndComp Wire Wire Line 5550 2650 5700 2650 Text GLabel 6200 2650 2 50 Input ~ 0 rst Wire Wire Line 6000 2650 6200 2650 NoConn ~ 9750 4600 Wire Wire Line 2750 5700 2750 5000 Wire Wire Line 3050 5000 3400 5000 $Comp L C C14 U 1 1 55981565 P 3400 6050 F 0 "C14" H 3425 6150 50 0000 L CNN F 1 "2.2nF" H 3425 5950 50 0000 L CNN F 2 "DonB:C_0805_HandSoldering" H 3438 5900 30 0001 C CNN F 3 "" H 3400 6050 60 0000 C CNN 1 3400 6050 1 0 0 -1 $EndComp $EndSCHEMATC