Cheap/Low-cost active noise-reduction using AMS chip.
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915 lines
19 KiB

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:AMS
LIBS:Switches
LIBS:Noiseulator-cache
EELAYER 25 0
EELAYER END
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Notes Line
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Wire Notes Line
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Wire Notes Line
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Headphones for\nOpen-Loop noise-cancellation
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
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F 3 "" H 8100 4600 60 0000 C CNN
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1 0 0 -1
$EndComp
$Comp
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F 3 "" H 9900 4600 60 0000 C CNN
1 9900 4600
1 0 0 -1
$EndComp
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Wire Wire Line
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Wire Wire Line
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Connection ~ 3100 2600
Wire Wire Line
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Connection ~ 3500 2900
$Comp
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1 4200 5450
1 0 0 -1
$EndComp
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F 1 "2k2" V 4600 5450 50 0000 C CNN
F 2 "Resistors_SMD:R_1206" V 4530 5450 30 0001 C CNN
F 3 "" H 4600 5450 30 0000 C CNN
1 4600 5450
1 0 0 -1
$EndComp
$Comp
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F 1 "220R" V 4450 4900 50 0000 C CNN
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F 3 "" H 4450 4900 30 0000 C CNN
1 4450 4900
0 1 1 0
$EndComp
$Comp
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F 0 "C8" H 3925 5550 50 0000 L CNN
F 1 "4.7uF" H 3925 5350 50 0000 L CNN
F 2 "Capacitors_SMD:C_1206" H 3938 5300 30 0001 C CNN
F 3 "" H 3900 5450 60 0000 C CNN
1 3900 5450
-1 0 0 1
$EndComp
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F 0 "#PWR013" H 5250 5050 50 0001 C CNN
F 1 "GND" H 5250 5150 50 0000 C CNN
F 2 "" H 5250 5300 60 0000 C CNN
F 3 "" H 5250 5300 60 0000 C CNN
1 5250 5300
1 0 0 -1
$EndComp
$Comp
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F 2 "Capacitors_SMD:C_1206" H 5288 4800 30 0001 C CNN
F 3 "" H 5250 4950 60 0000 C CNN
1 5250 4950
-1 0 0 1
$EndComp
$Comp
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F 0 "C11" H 5625 5550 50 0000 L CNN
F 1 "2.2uF" H 5625 5350 50 0000 L CNN
F 2 "Capacitors_SMD:C_1206" H 5638 5300 30 0001 C CNN
F 3 "" H 5600 5450 60 0000 C CNN
1 5600 5450
-1 0 0 1
$EndComp
$Comp
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F 1 "2.2uF" H 5025 5350 50 0000 L CNN
F 2 "Capacitors_SMD:C_1206" H 5038 5300 30 0001 C CNN
F 3 "" H 5000 5450 60 0000 C CNN
1 5000 5450
-1 0 0 1
$EndComp
$Comp
L GND #PWR014
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F 0 "#PWR014" H 3900 5450 50 0001 C CNN
F 1 "GND" H 3900 5550 50 0000 C CNN
F 2 "" H 3900 5700 60 0000 C CNN
F 3 "" H 3900 5700 60 0000 C CNN
1 3900 5700
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 4200 5200
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
5000 3850 5000 4600
Wire Wire Line
4900 4600 5250 4600
Wire Wire Line
4900 4600 4900 4900
Wire Wire Line
4900 4900 4600 4900
Wire Wire Line
5250 4600 5250 4800
Connection ~ 5000 4600
Wire Wire Line
5250 5100 5250 5300
Text GLabel 9900 4300 1 60 Input ~ 0
MICR
Text GLabel 8100 4300 1 60 Input ~ 0
MICL
Text GLabel 4600 5900 3 60 Input ~ 0
MICL
Text GLabel 5400 5800 3 60 Input ~ 0
MICR
Wire Wire Line
4600 5900 4600 5800
Connection ~ 4600 5800
Wire Wire Line
5400 5800 5400 5700
Connection ~ 5400 5700
Text GLabel 2800 5550 1 60 Input ~ 0
HPL
Text GLabel 3300 5550 1 60 Input ~ 0
HPR
Text GLabel 6250 2900 2 60 Input ~ 0
HPL
Text GLabel 6250 2600 2 60 Input ~ 0
HPR
Text GLabel 3900 4900 1 60 Input ~ 0
MICS
Connection ~ 3900 5200
$Comp
L GND #PWR015
U 1 1 56008162
P 2050 3550
F 0 "#PWR015" H 2050 3300 50 0001 C CNN
F 1 "GND" H 2050 3400 50 0000 C CNN
F 2 "" H 2050 3550 60 0000 C CNN
F 3 "" H 2050 3550 60 0000 C CNN
1 2050 3550
1 0 0 -1
$EndComp
Wire Wire Line
2050 3450 2050 3550
Connection ~ 2050 3450
$EndSCHEMATC