summaryrefslogtreecommitdiff
path: root/hardware/comm/rda1846.sch
diff options
context:
space:
mode:
Diffstat (limited to 'hardware/comm/rda1846.sch')
-rw-r--r--hardware/comm/rda1846.sch780
1 files changed, 780 insertions, 0 deletions
diff --git a/hardware/comm/rda1846.sch b/hardware/comm/rda1846.sch
new file mode 100644
index 0000000..a6b7485
--- /dev/null
+++ b/hardware/comm/rda1846.sch
@@ -0,0 +1,780 @@
+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:special
+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:mur-sat
+LIBS:comm-cache
+EELAYER 27 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 3 3
+Title "Comm - RDA1846"
+Date "11 feb 2015"
+Rev "2a"
+Comp "mur.sat - A Space Art Project"
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Wire Wire Line
+ 3050 2550 3050 2500
+Wire Wire Line
+ 6050 3300 5900 3300
+Wire Wire Line
+ 4750 1900 4750 2450
+Wire Wire Line
+ 5150 1900 5150 2450
+Wire Wire Line
+ 5350 1900 5350 2450
+Wire Wire Line
+ 3750 1850 4550 1850
+Wire Wire Line
+ 4550 1750 4550 2450
+Wire Wire Line
+ 4050 2400 4050 2450
+Wire Wire Line
+ 4150 2450 4150 2400
+Wire Wire Line
+ 3150 4800 3150 4750
+Wire Wire Line
+ 3150 4100 3150 4350
+Wire Wire Line
+ 3150 4100 3500 4100
+Wire Wire Line
+ 3450 4350 3450 4300
+Wire Wire Line
+ 3450 4300 3500 4300
+Wire Wire Line
+ 5450 6200 5450 6150
+Wire Wire Line
+ 5100 5550 5100 5500
+Wire Wire Line
+ 4850 6200 4850 6150
+Wire Wire Line
+ 4350 6200 4350 6150
+Wire Wire Line
+ 4350 5550 4350 5500
+Wire Wire Line
+ 3800 5550 3800 5500
+Wire Wire Line
+ 4350 5700 4350 5750
+Wire Wire Line
+ 4200 4900 4200 5700
+Wire Wire Line
+ 4850 5750 4850 5700
+Wire Wire Line
+ 4950 4900 4950 5700
+Wire Wire Line
+ 5450 5750 5450 5700
+Wire Wire Line
+ 5450 5700 5700 5700
+Wire Wire Line
+ 5700 5700 5700 5750
+Connection ~ 5200 5050
+Wire Wire Line
+ 5200 5050 5200 4900
+Connection ~ 5100 5050
+Wire Wire Line
+ 5100 5050 5100 5100
+Connection ~ 4600 5050
+Wire Wire Line
+ 4600 5050 4600 5100
+Connection ~ 4050 5050
+Wire Wire Line
+ 4050 5050 4050 5100
+Connection ~ 4200 5050
+Wire Wire Line
+ 3950 5050 3950 4900
+Wire Wire Line
+ 4450 5050 4450 4900
+Wire Wire Line
+ 6700 2650 6700 2600
+Wire Wire Line
+ 4700 4950 4700 4900
+Connection ~ 4450 5050
+Wire Wire Line
+ 4350 5050 4350 5100
+Connection ~ 4350 5050
+Wire Wire Line
+ 3800 5050 5700 5050
+Wire Wire Line
+ 3800 5050 3800 5100
+Connection ~ 3950 5050
+Connection ~ 4950 5050
+Wire Wire Line
+ 5350 5100 5350 5050
+Connection ~ 5350 5050
+Wire Wire Line
+ 5450 4900 5450 5050
+Connection ~ 5450 5050
+Wire Wire Line
+ 5550 5700 5550 5050
+Connection ~ 5550 5050
+Connection ~ 5550 5700
+Wire Wire Line
+ 4850 5700 5100 5700
+Wire Wire Line
+ 5100 5700 5100 5750
+Connection ~ 4950 5700
+Wire Wire Line
+ 4100 5700 4350 5700
+Wire Wire Line
+ 4100 5700 4100 5750
+Connection ~ 4200 5700
+Wire Wire Line
+ 4050 5550 4050 5500
+Wire Wire Line
+ 4100 6200 4100 6150
+Wire Wire Line
+ 4600 5550 4600 5500
+Wire Wire Line
+ 5100 6200 5100 6150
+Wire Wire Line
+ 5350 5500 5350 5550
+Wire Wire Line
+ 5700 6200 5700 6150
+Wire Wire Line
+ 5700 5050 5700 5000
+Wire Wire Line
+ 3500 3950 2450 3950
+Wire Wire Line
+ 2450 3950 2450 4350
+Wire Wire Line
+ 3450 4800 3450 4750
+Wire Wire Line
+ 2450 4800 2450 4750
+Wire Wire Line
+ 4250 2450 4250 2400
+Wire Wire Line
+ 3750 1950 4450 1950
+Wire Wire Line
+ 4450 1750 4450 2450
+Wire Wire Line
+ 5450 2450 5450 1900
+Wire Wire Line
+ 5250 2450 5250 1900
+Wire Wire Line
+ 5050 2450 5050 1900
+Wire Wire Line
+ 4850 2450 4850 1900
+Wire Wire Line
+ 3050 2250 3050 2300
+Wire Wire Line
+ 3050 2300 3000 2300
+Wire Wire Line
+ 3050 2500 3000 2500
+$Comp
+L C C318
+U 1 1 50E1D599
+P 6250 3300
+F 0 "C318" H 6300 3400 50 0000 L CNN
+F 1 "150pF" H 6300 3200 50 0000 L CNN
+F 2 "" H 6250 3300 60 0001 C CNN
+F 3 "" H 6250 3300 60 0001 C CNN
+ 1 6250 3300
+ 0 -1 -1 0
+$EndComp
+$Comp
+L QUARTZCMS4 X301
+U 1 1 50E1D166
+P 2800 4250
+F 0 "X301" H 2800 4100 60 0000 C CNN
+F 1 "12.288MHz" H 2800 4400 60 0000 C CNN
+F 2 "" H 2800 4250 60 0001 C CNN
+F 3 "" H 2800 4250 60 0001 C CNN
+ 1 2800 4250
+ 1 0 0 -1
+$EndComp
+$Comp
+L CONN_8 P301
+U 1 1 50D39E68
+P 5100 1550
+F 0 "P301" V 5050 1550 60 0000 C CNN
+F 1 "RDA_GPIO" V 5150 1550 60 0000 C CNN
+F 2 "" H 5100 1550 60 0001 C CNN
+F 3 "" H 5100 1550 60 0001 C CNN
+ 1 5100 1550
+ 0 -1 -1 0
+$EndComp
+$Comp
+L C C303
+U 1 1 50D39D8A
+P 3100 3600
+F 0 "C303" H 3150 3700 50 0000 L CNN
+F 1 "47µF" V 3200 3350 50 0000 L CNN
+F 2 "" H 3100 3600 60 0001 C CNN
+F 3 "" H 3100 3600 60 0001 C CNN
+ 1 3100 3600
+ 0 -1 -1 0
+$EndComp
+$Comp
+L C C302
+U 1 1 50D39D7A
+P 3100 3300
+F 0 "C302" H 3150 3400 50 0000 L CNN
+F 1 "47µF" V 3200 3050 50 0000 L CNN
+F 2 "" H 3100 3300 60 0001 C CNN
+F 3 "" H 3100 3300 60 0001 C CNN
+ 1 3100 3300
+ 0 -1 -1 0
+$EndComp
+$Comp
+L VCC #PWR072
+U 1 1 50D39D46
+P 3050 2250
+F 0 "#PWR072" H 3050 2350 30 0001 C CNN
+F 1 "VCC" H 3050 2350 30 0000 C CNN
+F 2 "" H 3050 2250 60 0001 C CNN
+F 3 "" H 3050 2250 60 0001 C CNN
+ 1 3050 2250
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR073
+U 1 1 50D39D28
+P 3050 2550
+F 0 "#PWR073" H 3050 2550 30 0001 C CNN
+F 1 "GND" H 3050 2480 30 0001 C CNN
+F 2 "" H 3050 2550 60 0001 C CNN
+F 3 "" H 3050 2550 60 0001 C CNN
+ 1 3050 2550
+ 1 0 0 -1
+$EndComp
+$Comp
+L CONN_3 K301
+U 1 1 50D39D1D
+P 2650 2400
+F 0 "K301" V 2600 2400 50 0000 C CNN
+F 1 "RDA_PDN" V 2700 2400 40 0000 C CNN
+F 2 "" H 2650 2400 60 0001 C CNN
+F 3 "" H 2650 2400 60 0001 C CNN
+ 1 2650 2400
+ -1 0 0 1
+$EndComp
+$Comp
+L GND #PWR074
+U 1 1 50D39D17
+P 4250 2400
+F 0 "#PWR074" H 4250 2400 30 0001 C CNN
+F 1 "GND" H 4250 2330 30 0001 C CNN
+F 2 "" H 4250 2400 60 0001 C CNN
+F 3 "" H 4250 2400 60 0001 C CNN
+ 1 4250 2400
+ -1 0 0 1
+$EndComp
+$Comp
+L GND #PWR075
+U 1 1 50D39D14
+P 4150 2400
+F 0 "#PWR075" H 4150 2400 30 0001 C CNN
+F 1 "GND" H 4150 2330 30 0001 C CNN
+F 2 "" H 4150 2400 60 0001 C CNN
+F 3 "" H 4150 2400 60 0001 C CNN
+ 1 4150 2400
+ -1 0 0 1
+$EndComp
+$Comp
+L GND #PWR076
+U 1 1 50D39CE6
+P 2450 4800
+F 0 "#PWR076" H 2450 4800 30 0001 C CNN
+F 1 "GND" H 2450 4730 30 0001 C CNN
+F 2 "" H 2450 4800 60 0001 C CNN
+F 3 "" H 2450 4800 60 0001 C CNN
+ 1 2450 4800
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR077
+U 1 1 50D39CE4
+P 3150 4800
+F 0 "#PWR077" H 3150 4800 30 0001 C CNN
+F 1 "GND" H 3150 4730 30 0001 C CNN
+F 2 "" H 3150 4800 60 0001 C CNN
+F 3 "" H 3150 4800 60 0001 C CNN
+ 1 3150 4800
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR078
+U 1 1 50D39CE2
+P 3450 4800
+F 0 "#PWR078" H 3450 4800 30 0001 C CNN
+F 1 "GND" H 3450 4730 30 0001 C CNN
+F 2 "" H 3450 4800 60 0001 C CNN
+F 3 "" H 3450 4800 60 0001 C CNN
+ 1 3450 4800
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C301
+U 1 1 50D39C99
+P 2450 4550
+F 0 "C301" H 2500 4650 50 0000 L CNN
+F 1 "22pF" V 2550 4300 50 0000 L CNN
+F 2 "" H 2450 4550 60 0001 C CNN
+F 3 "" H 2450 4550 60 0001 C CNN
+ 1 2450 4550
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C304
+U 1 1 50D39C8D
+P 3150 4550
+F 0 "C304" H 3200 4650 50 0000 L CNN
+F 1 "22pF" V 3250 4300 50 0000 L CNN
+F 2 "" H 3150 4550 60 0001 C CNN
+F 3 "" H 3150 4550 60 0001 C CNN
+ 1 3150 4550
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C305
+U 1 1 50D39C7F
+P 3450 4550
+F 0 "C305" H 3500 4650 50 0000 L CNN
+F 1 "47µF" V 3550 4300 50 0000 L CNN
+F 2 "" H 3450 4550 60 0001 C CNN
+F 3 "" H 3450 4550 60 0001 C CNN
+ 1 3450 4550
+ 1 0 0 -1
+$EndComp
+$Comp
+L VCC #PWR079
+U 1 1 50D39C51
+P 5700 5000
+F 0 "#PWR079" H 5700 5100 30 0001 C CNN
+F 1 "VCC" H 5700 5100 30 0000 C CNN
+F 2 "" H 5700 5000 60 0001 C CNN
+F 3 "" H 5700 5000 60 0001 C CNN
+ 1 5700 5000
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR080
+U 1 1 50D39BFC
+P 5350 5550
+F 0 "#PWR080" H 5350 5550 30 0001 C CNN
+F 1 "GND" H 5350 5480 30 0001 C CNN
+F 2 "" H 5350 5550 60 0001 C CNN
+F 3 "" H 5350 5550 60 0001 C CNN
+ 1 5350 5550
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR081
+U 1 1 50D39BFA
+P 5100 5550
+F 0 "#PWR081" H 5100 5550 30 0001 C CNN
+F 1 "GND" H 5100 5480 30 0001 C CNN
+F 2 "" H 5100 5550 60 0001 C CNN
+F 3 "" H 5100 5550 60 0001 C CNN
+ 1 5100 5550
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR082
+U 1 1 50D39BF7
+P 5700 6200
+F 0 "#PWR082" H 5700 6200 30 0001 C CNN
+F 1 "GND" H 5700 6130 30 0001 C CNN
+F 2 "" H 5700 6200 60 0001 C CNN
+F 3 "" H 5700 6200 60 0001 C CNN
+ 1 5700 6200
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR083
+U 1 1 50D39BF6
+P 5450 6200
+F 0 "#PWR083" H 5450 6200 30 0001 C CNN
+F 1 "GND" H 5450 6130 30 0001 C CNN
+F 2 "" H 5450 6200 60 0001 C CNN
+F 3 "" H 5450 6200 60 0001 C CNN
+ 1 5450 6200
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR084
+U 1 1 50D39BF4
+P 5100 6200
+F 0 "#PWR084" H 5100 6200 30 0001 C CNN
+F 1 "GND" H 5100 6130 30 0001 C CNN
+F 2 "" H 5100 6200 60 0001 C CNN
+F 3 "" H 5100 6200 60 0001 C CNN
+ 1 5100 6200
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR085
+U 1 1 50D39BF3
+P 4850 6200
+F 0 "#PWR085" H 4850 6200 30 0001 C CNN
+F 1 "GND" H 4850 6130 30 0001 C CNN
+F 2 "" H 4850 6200 60 0001 C CNN
+F 3 "" H 4850 6200 60 0001 C CNN
+ 1 4850 6200
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR086
+U 1 1 50D39BF2
+P 4350 6200
+F 0 "#PWR086" H 4350 6200 30 0001 C CNN
+F 1 "GND" H 4350 6130 30 0001 C CNN
+F 2 "" H 4350 6200 60 0001 C CNN
+F 3 "" H 4350 6200 60 0001 C CNN
+ 1 4350 6200
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR087
+U 1 1 50D39BF0
+P 4100 6200
+F 0 "#PWR087" H 4100 6200 30 0001 C CNN
+F 1 "GND" H 4100 6130 30 0001 C CNN
+F 2 "" H 4100 6200 60 0001 C CNN
+F 3 "" H 4100 6200 60 0001 C CNN
+ 1 4100 6200
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR088
+U 1 1 50D39BEF
+P 3800 5550
+F 0 "#PWR088" H 3800 5550 30 0001 C CNN
+F 1 "GND" H 3800 5480 30 0001 C CNN
+F 2 "" H 3800 5550 60 0001 C CNN
+F 3 "" H 3800 5550 60 0001 C CNN
+ 1 3800 5550
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR089
+U 1 1 50D39BED
+P 4050 5550
+F 0 "#PWR089" H 4050 5550 30 0001 C CNN
+F 1 "GND" H 4050 5480 30 0001 C CNN
+F 2 "" H 4050 5550 60 0001 C CNN
+F 3 "" H 4050 5550 60 0001 C CNN
+ 1 4050 5550
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR090
+U 1 1 50D39BEB
+P 4600 5550
+F 0 "#PWR090" H 4600 5550 30 0001 C CNN
+F 1 "GND" H 4600 5480 30 0001 C CNN
+F 2 "" H 4600 5550 60 0001 C CNN
+F 3 "" H 4600 5550 60 0001 C CNN
+ 1 4600 5550
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR091
+U 1 1 50D39BE9
+P 4350 5550
+F 0 "#PWR091" H 4350 5550 30 0001 C CNN
+F 1 "GND" H 4350 5480 30 0001 C CNN
+F 2 "" H 4350 5550 60 0001 C CNN
+F 3 "" H 4350 5550 60 0001 C CNN
+ 1 4350 5550
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C316
+U 1 1 50D39BAF
+P 5450 5950
+F 0 "C316" H 5500 6050 50 0000 L CNN
+F 1 "1nF" V 5550 5750 50 0000 L CNN
+F 2 "" H 5450 5950 60 0001 C CNN
+F 3 "" H 5450 5950 60 0001 C CNN
+ 1 5450 5950
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C317
+U 1 1 50D39BAE
+P 5700 5950
+F 0 "C317" H 5750 6050 50 0000 L CNN
+F 1 "100nF" V 5800 5650 50 0000 L CNN
+F 2 "" H 5700 5950 60 0001 C CNN
+F 3 "" H 5700 5950 60 0001 C CNN
+ 1 5700 5950
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C314
+U 1 1 50D39B96
+P 5100 5950
+F 0 "C314" H 5150 6050 50 0000 L CNN
+F 1 "100nF" V 5200 5650 50 0000 L CNN
+F 2 "" H 5100 5950 60 0001 C CNN
+F 3 "" H 5100 5950 60 0001 C CNN
+ 1 5100 5950
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C312
+U 1 1 50D39B95
+P 4850 5950
+F 0 "C312" H 4900 6050 50 0000 L CNN
+F 1 "1nF" V 4950 5750 50 0000 L CNN
+F 2 "" H 4850 5950 60 0001 C CNN
+F 3 "" H 4850 5950 60 0001 C CNN
+ 1 4850 5950
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C308
+U 1 1 50D39B4C
+P 4100 5950
+F 0 "C308" H 4150 6050 50 0000 L CNN
+F 1 "1nF" V 4200 5750 50 0000 L CNN
+F 2 "" H 4100 5950 60 0001 C CNN
+F 3 "" H 4100 5950 60 0001 C CNN
+ 1 4100 5950
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C310
+U 1 1 50D39B4B
+P 4350 5950
+F 0 "C310" H 4400 6050 50 0000 L CNN
+F 1 "100nF" V 4450 5650 50 0000 L CNN
+F 2 "" H 4350 5950 60 0001 C CNN
+F 3 "" H 4350 5950 60 0001 C CNN
+ 1 4350 5950
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C315
+U 1 1 50D39B0E
+P 5350 5300
+F 0 "C315" H 5400 5400 50 0000 L CNN
+F 1 "100nF" V 5450 5000 50 0000 L CNN
+F 2 "" H 5350 5300 60 0001 C CNN
+F 3 "" H 5350 5300 60 0001 C CNN
+ 1 5350 5300
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C313
+U 1 1 50D39B0D
+P 5100 5300
+F 0 "C313" H 5150 5400 50 0000 L CNN
+F 1 "1nF" V 5200 5100 50 0000 L CNN
+F 2 "" H 5100 5300 60 0001 C CNN
+F 3 "" H 5100 5300 60 0001 C CNN
+ 1 5100 5300
+ 1 0 0 -1
+$EndComp
+$Comp
+L GND #PWR092
+U 1 1 50D39AF6
+P 4700 4950
+F 0 "#PWR092" H 4700 4950 30 0001 C CNN
+F 1 "GND" H 4700 4880 30 0001 C CNN
+F 2 "" H 4700 4950 60 0001 C CNN
+F 3 "" H 4700 4950 60 0001 C CNN
+ 1 4700 4950
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C309
+U 1 1 50D39AED
+P 4350 5300
+F 0 "C309" H 4400 5400 50 0000 L CNN
+F 1 "1nF" V 4450 5100 50 0000 L CNN
+F 2 "" H 4350 5300 60 0001 C CNN
+F 3 "" H 4350 5300 60 0001 C CNN
+ 1 4350 5300
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C311
+U 1 1 50D39AEC
+P 4600 5300
+F 0 "C311" H 4650 5400 50 0000 L CNN
+F 1 "100nF" V 4700 5000 50 0000 L CNN
+F 2 "" H 4600 5300 60 0001 C CNN
+F 3 "" H 4600 5300 60 0001 C CNN
+ 1 4600 5300
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C307
+U 1 1 50D39A7A
+P 4050 5300
+F 0 "C307" H 4100 5400 50 0000 L CNN
+F 1 "100nF" V 4150 5000 50 0000 L CNN
+F 2 "" H 4050 5300 60 0001 C CNN
+F 3 "" H 4050 5300 60 0001 C CNN
+ 1 4050 5300
+ 1 0 0 -1
+$EndComp
+$Comp
+L C C306
+U 1 1 50D39A73
+P 3800 5300
+F 0 "C306" H 3850 5400 50 0000 L CNN
+F 1 "1nF" V 3900 5100 50 0000 L CNN
+F 2 "" H 3800 5300 60 0001 C CNN
+F 3 "" H 3800 5300 60 0001 C CNN
+ 1 3800 5300
+ 1 0 0 -1
+$EndComp
+NoConn ~ 5900 4300
+NoConn ~ 5900 4200
+NoConn ~ 5900 4100
+NoConn ~ 5900 4000
+NoConn ~ 5900 3900
+$Comp
+L GND #PWR093
+U 1 1 50D39A47
+P 6700 2600
+F 0 "#PWR093" H 6700 2600 30 0001 C CNN
+F 1 "GND" H 6700 2530 30 0001 C CNN
+F 2 "" H 6700 2600 60 0001 C CNN
+F 3 "" H 6700 2600 60 0001 C CNN
+ 1 6700 2600
+ -1 0 0 1
+$EndComp
+NoConn ~ 5900 3100
+$Comp
+L R R303
+U 1 1 50D39A23
+P 6700 2900
+F 0 "R303" V 6780 2900 50 0000 C CNN
+F 1 "50R" V 6700 2900 50 0000 C CNN
+F 2 "" H 6700 2900 60 0001 C CNN
+F 3 "" H 6700 2900 60 0001 C CNN
+ 1 6700 2900
+ 1 0 0 -1
+$EndComp
+$Comp
+L RDA1846 U301
+U 1 1 50D39A02
+P 4700 3600
+F 0 "U301" H 4700 3650 60 0000 C CNN
+F 1 "RDA1846" H 4700 3550 60 0000 C CNN
+F 2 "" H 4700 3600 60 0001 C CNN
+F 3 "" H 4700 3600 60 0001 C CNN
+ 1 4700 3600
+ 1 0 0 -1
+$EndComp
+Text HLabel 3750 1950 0 60 Input ~ 0
+RDA_SDA
+Text HLabel 3750 1850 0 60 Input ~ 0
+RDA_SCL
+Text HLabel 6700 3600 2 60 Input ~ 0
+RDA_HF
+Wire Wire Line
+ 4050 2400 3000 2400
+Wire Wire Line
+ 6700 3150 6700 3300
+Wire Wire Line
+ 6700 3300 6450 3300
+Wire Wire Line
+ 6700 3600 5900 3600
+Wire Wire Line
+ 3500 3300 3300 3300
+Wire Wire Line
+ 3300 3600 3500 3600
+Wire Wire Line
+ 3100 4250 3150 4250
+Connection ~ 3150 4250
+Wire Wire Line
+ 2500 4250 2450 4250
+Connection ~ 2450 4250
+Wire Wire Line
+ 4950 1900 4950 2450
+$Comp
+L VCC #PWR094
+U 1 1 54DBBE10
+P 4550 1150
+F 0 "#PWR094" H 4550 1250 30 0001 C CNN
+F 1 "VCC" H 4550 1250 30 0000 C CNN
+F 2 "" H 4550 1150 60 0001 C CNN
+F 3 "" H 4550 1150 60 0001 C CNN
+ 1 4550 1150
+ 1 0 0 -1
+$EndComp
+$Comp
+L R R302
+U 1 1 54DBBE20
+P 4550 1500
+F 0 "R302" V 4450 1500 50 0000 C CNN
+F 1 "2k2" V 4550 1500 50 0000 C CNN
+F 2 "" H 4550 1500 60 0001 C CNN
+F 3 "" H 4550 1500 60 0001 C CNN
+ 1 4550 1500
+ -1 0 0 1
+$EndComp
+$Comp
+L R R301
+U 1 1 54DBBE2B
+P 4450 1500
+F 0 "R301" V 4530 1500 50 0000 C CNN
+F 1 "2k2" V 4450 1500 50 0000 C CNN
+F 2 "" H 4450 1500 60 0001 C CNN
+F 3 "" H 4450 1500 60 0001 C CNN
+ 1 4450 1500
+ -1 0 0 1
+$EndComp
+Connection ~ 4550 1850
+Wire Wire Line
+ 4550 1250 4550 1150
+$Comp
+L VCC #PWR095
+U 1 1 54DBBFD2
+P 4450 1150
+F 0 "#PWR095" H 4450 1250 30 0001 C CNN
+F 1 "VCC" H 4450 1250 30 0000 C CNN
+F 2 "" H 4450 1150 60 0001 C CNN
+F 3 "" H 4450 1150 60 0001 C CNN
+ 1 4450 1150
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 4450 1250 4450 1150
+Connection ~ 4450 1950
+Text HLabel 2700 3300 0 60 Input ~ 0
+RDA_IN
+Text HLabel 2700 3600 0 60 Input ~ 0
+RDA_OUT
+Wire Wire Line
+ 2900 3600 2700 3600
+Wire Wire Line
+ 2700 3300 2900 3300
+$EndSCHEMATC