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-rw-r--r--kicad/baseband.sch700
1 files changed, 385 insertions, 315 deletions
diff --git a/kicad/baseband.sch b/kicad/baseband.sch
index 848c310..1dcdd99 100644
--- a/kicad/baseband.sch
+++ b/kicad/baseband.sch
@@ -833,326 +833,187 @@ $EndComp
$Comp
L Device:C_Small C345
U 1 1 5E406764
-P 8900 2950
-F 0 "C345" H 8808 2904 50 0000 R CNN
-F 1 "0.1uF" H 8808 2995 50 0000 R CNN
-F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 8900 2950 50 0001 C CNN
-F 3 "~" H 8900 2950 50 0001 C CNN
-F 4 "GRM188R71H104KA93D" H 8900 2950 50 0001 C CNN "MPN"
-F 5 "0" H 8900 2950 50 0001 C CNN "Need_order"
- 1 8900 2950
+P 8600 2950
+F 0 "C345" H 8691 2904 50 0000 L CNN
+F 1 "0.1uF" H 8691 2995 50 0000 L CNN
+F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 8600 2950 50 0001 C CNN
+F 3 "~" H 8600 2950 50 0001 C CNN
+F 4 "GRM188R71H104KA93D" H 8600 2950 50 0001 C CNN "MPN"
+F 5 "0" H 8600 2950 50 0001 C CNN "Need_order"
+ 1 8600 2950
-1 0 0 1
$EndComp
$Comp
L power:GNDA #PWR0331
U 1 1 5E40676E
-P 8900 3050
-F 0 "#PWR0331" H 8900 2800 50 0001 C CNN
-F 1 "GNDA" H 8905 2877 50 0000 C CNN
-F 2 "" H 8900 3050 50 0001 C CNN
-F 3 "" H 8900 3050 50 0001 C CNN
- 1 8900 3050
+P 8600 3050
+F 0 "#PWR0331" H 8600 2800 50 0001 C CNN
+F 1 "GNDA" H 8605 2877 50 0000 C CNN
+F 2 "" H 8600 3050 50 0001 C CNN
+F 3 "" H 8600 3050 50 0001 C CNN
+ 1 8600 3050
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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-$Comp
-L Device:C_Small C343
-U 1 1 5E406785
-P 8350 2950
-F 0 "C343" H 8258 2904 50 0000 R CNN
-F 1 "0.1uF" H 8258 2995 50 0000 R CNN
-F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 8350 2950 50 0001 C CNN
-F 3 "~" H 8350 2950 50 0001 C CNN
-F 4 "GRM188R71H104KA93D" H 8350 2950 50 0001 C CNN "MPN"
-F 5 "0" H 8350 2950 50 0001 C CNN "Need_order"
- 1 8350 2950
- -1 0 0 1
-$EndComp
-$Comp
-L power:GNDA #PWR0326
-U 1 1 5E40678F
-P 8350 3050
-F 0 "#PWR0326" H 8350 2800 50 0001 C CNN
-F 1 "GNDA" H 8355 2877 50 0000 C CNN
-F 2 "" H 8350 3050 50 0001 C CNN
-F 3 "" H 8350 3050 50 0001 C CNN
- 1 8350 3050
- 1 0 0 -1
-$EndComp
-Text Notes 6750 700 0 50 ~ 0
-Dynamic microphone
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Wire Notes Line
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+ 6500 550 6500 2600
$Comp
L power:GNDA #PWR0322
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-F 0 "#PWR0322" H 7050 1150 50 0001 C CNN
-F 1 "GNDA" H 7055 1227 50 0000 C CNN
-F 2 "" H 7050 1400 50 0001 C CNN
-F 3 "" H 7050 1400 50 0001 C CNN
- 1 7050 1400
- -1 0 0 -1
+P 7450 750
+F 0 "#PWR0322" H 7450 500 50 0001 C CNN
+F 1 "GNDA" V 7455 622 50 0000 R CNN
+F 2 "" H 7450 750 50 0001 C CNN
+F 3 "" H 7450 750 50 0001 C CNN
+ 1 7450 750
+ 0 -1 -1 0
$EndComp
$Comp
L Device:R_POT RV301
U 1 1 5E418964
-P 7050 1200
-F 0 "RV301" H 6980 1246 50 0000 R CNN
-F 1 "10k" H 6980 1155 50 0000 R CNN
-F 2 "Potentiometer_SMD:Potentiometer_Bourns_3214W_Vertical" H 7050 1200 50 0001 C CNN
-F 3 "~" H 7050 1200 50 0001 C CNN
-F 4 "3214W-1-103G" H 7050 1200 50 0001 C CNN "MPN"
-F 5 "0" H 7050 1200 50 0001 C CNN "Need_order"
- 1 7050 1200
- 1 0 0 -1
+P 7250 750
+F 0 "RV301" V 7043 750 50 0000 C CNN
+F 1 "10k" V 7134 750 50 0000 C CNN
+F 2 "Potentiometer_SMD:Potentiometer_Bourns_3214W_Vertical" H 7250 750 50 0001 C CNN
+F 3 "~" H 7250 750 50 0001 C CNN
+F 4 "3214W-1-103G" H 7250 750 50 0001 C CNN "MPN"
+F 5 "0" H 7250 750 50 0001 C CNN "Need_order"
+ 1 7250 750
+ 0 -1 1 0
$EndComp
Wire Wire Line
- 6950 1000 7050 1000
+ 7000 750 7100 750
Wire Wire Line
- 7050 1000 7050 1050
-Wire Wire Line
- 7050 1350 7050 1400
+ 7400 750 7450 750
$Comp
L Device:C_Small C335
U 1 1 5E426DBD
-P 7300 1300
-F 0 "C335" H 7208 1346 50 0000 R CNN
-F 1 "510pF" H 7208 1255 50 0000 R CNN
-F 2 "Capacitor_SMD:C_0805_2012Metric" H 7300 1300 50 0001 C CNN
-F 3 "~" H 7300 1300 50 0001 C CNN
-F 4 "GRM2165C2A511JA01D" H 7300 1300 50 0001 C CNN "MPN"
-F 5 "0" H 7300 1300 50 0001 C CNN "Need_order"
-F 6 "1nF" H 7300 1300 50 0001 C CNN "OriginalValue"
- 1 7300 1300
- -1 0 0 -1
+P 7350 1000
+F 0 "C335" V 7213 1000 50 0000 C CNN
+F 1 "510pF" V 7122 1000 50 0000 C CNN
+F 2 "Capacitor_SMD:C_0805_2012Metric" H 7350 1000 50 0001 C CNN
+F 3 "~" H 7350 1000 50 0001 C CNN
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+F 5 "0" H 7350 1000 50 0001 C CNN "Need_order"
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+ 1 7350 1000
+ 0 -1 -1 0
$EndComp
Wire Wire Line
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-Wire Wire Line
- 7300 1400 7050 1400
-Connection ~ 7050 1400
-Connection ~ 7300 1200
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Wire Wire Line
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+ 7450 1000 7450 750
$Comp
L Device:R R313
U 1 1 5E455A59
-P 7000 2300
-F 0 "R313" H 7070 2346 50 0000 L CNN
-F 1 "560k" H 7070 2255 50 0000 L CNN
-F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 6930 2300 50 0001 C CNN
-F 3 "~" H 7000 2300 50 0001 C CNN
-F 4 "0" H 7000 2300 50 0001 C CNN "Need_order"
- 1 7000 2300
- 1 0 0 -1
-$EndComp
-Wire Wire Line
- 7000 2500 7000 2450
-Connection ~ 7000 2500
-Wire Wire Line
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-Wire Wire Line
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-$Comp
-L Device:R R316
-U 1 1 5E460CEA
-P 7850 1200
-F 0 "R316" H 7920 1246 50 0000 L CNN
-F 1 "1k" H 7920 1155 50 0000 L CNN
-F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7780 1200 50 0001 C CNN
-F 3 "~" H 7850 1200 50 0001 C CNN
-F 4 "0" H 7850 1200 50 0001 C CNN "Need_order"
- 1 7850 1200
- 1 0 0 -1
-$EndComp
-Wire Wire Line
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-$Comp
-L Device:R R317
-U 1 1 5E46666D
-P 7850 1600
-F 0 "R317" H 7920 1646 50 0000 L CNN
-F 1 "3.3k" H 7920 1555 50 0000 L CNN
-F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7780 1600 50 0001 C CNN
-F 3 "~" H 7850 1600 50 0001 C CNN
-F 4 "0" H 7850 1600 50 0001 C CNN "Need_order"
- 1 7850 1600
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+F 0 "R313" H 7270 1546 50 0000 L CNN
+F 1 "560k" H 7270 1455 50 0000 L CNN
+F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7130 1500 50 0001 C CNN
+F 3 "~" H 7200 1500 50 0001 C CNN
+F 4 "0" H 7200 1500 50 0001 C CNN "Need_order"
+ 1 7200 1500
1 0 0 -1
$EndComp
-Wire Wire Line
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$Comp
L Device:CP_Small C339
U 1 1 5E46CB69
-P 8150 1500
-F 0 "C339" H 8238 1546 50 0000 L CNN
-F 1 "10uF" H 8238 1455 50 0000 L CNN
-F 2 "Capacitor_SMD:C_1210_3225Metric_Pad1.42x2.65mm_HandSolder" H 8150 1500 50 0001 C CNN
-F 3 "~" H 8150 1500 50 0001 C CNN
-F 4 "TAJA106K016RNJ" H 8150 1500 50 0001 C CNN "MPN"
-F 5 "0" H 8150 1500 50 0001 C CNN "Need_order"
-F 6 "47uF" H 8150 1500 50 0001 C CNN "OriginalValue"
- 1 8150 1500
- 1 0 0 -1
-$EndComp
-Wire Wire Line
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-Connection ~ 7850 1400
-Wire Wire Line
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-$Comp
-L power:GNDA #PWR0325
-U 1 1 5E4785A0
-P 8150 1600
-F 0 "#PWR0325" H 8150 1350 50 0001 C CNN
-F 1 "GNDA" H 8155 1427 50 0000 C CNN
-F 2 "" H 8150 1600 50 0001 C CNN
-F 3 "" H 8150 1600 50 0001 C CNN
- 1 8150 1600
- -1 0 0 -1
-$EndComp
-Wire Wire Line
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-Wire Wire Line
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-$Comp
-L Device:R R314
-U 1 1 5E483B56
-P 7150 2850
-F 0 "R314" H 7081 2896 50 0000 R CNN
-F 1 "1k" H 7081 2805 50 0000 R CNN
-F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7080 2850 50 0001 C CNN
-F 3 "~" H 7150 2850 50 0001 C CNN
-F 4 "0" H 7150 2850 50 0001 C CNN "Need_order"
- 1 7150 2850
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+F 1 "10uF" H 8088 1355 50 0000 L CNN
+F 2 "Capacitor_SMD:C_1210_3225Metric_Pad1.42x2.65mm_HandSolder" H 8000 1400 50 0001 C CNN
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+ 1 8000 1400
1 0 0 -1
$EndComp
$Comp
L Device:CP_Small C336
U 1 1 5E483F01
-P 7300 2850
-F 0 "C336" H 7388 2896 50 0000 L CNN
-F 1 "10uF" H 7388 2805 50 0000 L CNN
-F 2 "Capacitor_SMD:CP_Elec_4x5.3" H 7300 2850 50 0001 C CNN
-F 3 "~" H 7300 2850 50 0001 C CNN
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-F 5 "0" H 7300 2850 50 0001 C CNN "Need_order"
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- 1 0 0 -1
-$EndComp
-Wire Wire Line
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-Wire Wire Line
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-Connection ~ 7300 2700
-Wire Wire Line
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-Wire Wire Line
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-$Comp
-L power:GNDA #PWR0324
-U 1 1 5E49BE54
-P 7300 3000
-F 0 "#PWR0324" H 7300 2750 50 0001 C CNN
-F 1 "GNDA" H 7305 2827 50 0000 C CNN
-F 2 "" H 7300 3000 50 0001 C CNN
-F 3 "" H 7300 3000 50 0001 C CNN
- 1 7300 3000
- -1 0 0 -1
+P 8500 2200
+F 0 "C336" V 8725 2200 50 0000 C CNN
+F 1 "10uF" V 8634 2200 50 0000 C CNN
+F 2 "Capacitor_SMD:CP_Elec_4x5.3" H 8500 2200 50 0001 C CNN
+F 3 "~" H 8500 2200 50 0001 C CNN
+F 4 "MCESL16V106M4X5.2" H 8500 2200 50 0001 C CNN "MPN"
+F 5 "0" H 8500 2200 50 0001 C CNN "Need_order"
+F 6 "2uF to 22uF = 20ms to 2200ms detector time constant" V 8500 2200 50 0001 C CNN "Description"
+ 1 8500 2200
+ 0 -1 -1 0
$EndComp
-Connection ~ 7300 3000
$Comp
L Device:C_Small C337
U 1 1 5E49C26E
-P 7850 2000
-F 0 "C337" H 7942 2046 50 0000 L CNN
-F 1 "1uF" H 7942 1955 50 0000 L CNN
-F 2 "Capacitor_SMD:C_0805_2012Metric" H 7850 2000 50 0001 C CNN
-F 3 "~" H 7850 2000 50 0001 C CNN
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-F 5 "0" H 7850 2000 50 0001 C CNN "Need_order"
- 1 7850 2000
- 1 0 0 -1
-$EndComp
-Wire Wire Line
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-Connection ~ 7850 1850
-$Comp
-L Device:R R318
-U 1 1 5E4A289A
-P 7850 2350
-F 0 "R318" H 7920 2396 50 0000 L CNN
-F 1 "10k" H 7920 2305 50 0000 L CNN
-F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7780 2350 50 0001 C CNN
-F 3 "~" H 7850 2350 50 0001 C CNN
-F 4 "0" H 7850 2350 50 0001 C CNN "Need_order"
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- 1 0 0 -1
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+ 1 8150 2850
+ 1 0 0 1
$EndComp
Wire Wire Line
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-Wire Wire Line
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+ 7700 3100 7700 3050
$Comp
L Device:C_Small C342
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-F 0 "C342" V 8479 2550 50 0000 C CNN
-F 1 "10nF" V 8388 2550 50 0000 C CNN
-F 2 "Capacitor_SMD:C_0805_2012Metric" H 8250 2550 50 0001 C CNN
-F 3 "~" H 8250 2550 50 0001 C CNN
-F 4 "VJ0805A103KXJTBC" H 8250 2550 50 0001 C CNN "MPN"
-F 5 "1" H 8250 2550 50 0001 C CNN "Need_order"
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- 0 1 -1 0
+P 7450 3450
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+F 4 "VJ0805A103KXJTBC" H 7450 3450 50 0001 C CNN "MPN"
+F 5 "1" H 7450 3450 50 0001 C CNN "Need_order"
+ 1 7450 3450
+ 0 -1 -1 0
$EndComp
$Comp
L Device:C_Small C341
U 1 1 5E4B62A2
-P 8250 2150
-F 0 "C341" V 8479 2150 50 0000 C CNN
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-F 2 "Capacitor_SMD:C_0805_2012Metric" H 8250 2150 50 0001 C CNN
-F 3 "~" H 8250 2150 50 0001 C CNN
-F 4 "VJ0805A103KXJTBC" H 8250 2150 50 0001 C CNN "MPN"
-F 5 "1" H 8250 2150 50 0001 C CNN "Need_order"
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- 0 1 -1 0
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+F 5 "1" H 7450 3050 50 0001 C CNN "Need_order"
+ 1 7450 3050
+ 0 -1 -1 0
$EndComp
Wire Wire Line
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Wire Wire Line
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-Connection ~ 7850 2550
+ 7700 3400 7700 3450
Wire Wire Line
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-Connection ~ 7850 2150
-Wire Wire Line
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+ 7700 3050 7550 3050
+Connection ~ 7700 3050
$Comp
L power:GNDA #PWR0327
U 1 1 5E4C3EAE
-P 8400 2350
-F 0 "#PWR0327" H 8400 2100 50 0001 C CNN
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-F 2 "" H 8400 2350 50 0001 C CNN
-F 3 "" H 8400 2350 50 0001 C CNN
- 1 8400 2350
- 0 -1 -1 0
+P 7300 3250
+F 0 "#PWR0327" H 7300 3000 50 0001 C CNN
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+F 2 "" H 7300 3250 50 0001 C CNN
+F 3 "" H 7300 3250 50 0001 C CNN
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+ 0 1 -1 0
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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-Connection ~ 8400 2350
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+Connection ~ 7300 3250
Wire Wire Line
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$Comp
L Device:C_Small C347
U 1 1 5E4D2F73
@@ -1425,7 +1286,7 @@ F 0 "C344" H 8562 5396 50 0000 R CNN
F 1 "470uF" H 8562 5305 50 0000 R CNN
F 2 "Capacitor_THT:CP_Radial_D10.0mm_P3.80mm" H 8650 5350 50 0001 C CNN
F 3 "~" H 8650 5350 50 0001 C CNN
-F 4 "0" H 8650 5350 50 0001 C CNN "Need_order"
+F 4 "" H 8650 5350 50 0001 C CNN "Need_order"
1 8650 5350
-1 0 0 -1
$EndComp
@@ -1495,7 +1356,7 @@ F 0 "C332" V 6825 5800 50 0000 C CNN
F 1 "220uF" V 6916 5800 50 0000 C CNN
F 2 "Capacitor_THT:CP_Radial_D8.0mm_P3.50mm" H 7050 5800 50 0001 C CNN
F 3 "~" H 7050 5800 50 0001 C CNN
-F 4 "0" H 7050 5800 50 0001 C CNN "Need_order"
+F 4 "" H 7050 5800 50 0001 C CNN "Need_order"
1 7050 5800
0 1 1 0
$EndComp
@@ -1629,8 +1490,8 @@ $Comp
L Device:R R321
U 1 1 5E698692
P 8850 1500
-F 0 "R321" H 8781 1546 50 0000 R CNN
-F 1 "390k" H 8781 1455 50 0000 R CNN
+F 0 "R321" H 8920 1546 50 0000 L CNN
+F 1 "390k" H 8920 1455 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 8780 1500 50 0001 C CNN
F 3 "~" H 8850 1500 50 0001 C CNN
F 4 "0" H 8850 1500 50 0001 C CNN "Need_order"
@@ -1721,14 +1582,7 @@ F 3 "" H 9650 800 50 0001 C CNN
-1 0 0 -1
$EndComp
Wire Wire Line
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-Connection ~ 7300 2150
-Wire Wire Line
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-Wire Wire Line
- 8150 2850 8350 2850
-Wire Wire Line
- 8650 2850 8750 2850
+ 8600 2850 8750 2850
Connection ~ 8750 2850
Wire Wire Line
8850 2300 8850 1750
@@ -1842,9 +1696,9 @@ Text HLabel 6750 5800 0 50 Output ~ 0
SPKR
Text HLabel 10900 1800 2 50 Output ~ 0
METER
-Text HLabel 6950 1000 0 50 Input ~ 0
+Text HLabel 7000 750 0 50 Input ~ 0
MIC
-Text HLabel 6350 1500 2 50 Output ~ 0
+Text HLabel 6300 1500 3 50 Output ~ 0
HF_TX
Text HLabel 10300 5500 0 50 Input ~ 0
MUTE_SPKR
@@ -1854,8 +1708,6 @@ Text HLabel 1300 4500 0 50 Input ~ 0
SWITCH_RELAYn
Text Label 2850 900 1 50 ~ 0
+8V_TX
-Text Label 7850 1000 1 50 ~ 0
-+8V_TX
Text Label 9650 600 0 50 ~ 0
+8V_RX
Text Label 4650 4300 2 50 ~ 0
@@ -1868,7 +1720,7 @@ Text Label 6800 3750 0 50 ~ 0
+8V_RX
Text GLabel 8350 4900 1 50 Input ~ 0
+8V
-Text GLabel 8150 2850 0 50 Input ~ 0
+Text GLabel 9150 2850 2 50 Input ~ 0
+8V
Wire Wire Line
1000 3550 1300 3550
@@ -2305,19 +2157,6 @@ Wire Wire Line
Wire Wire Line
6200 3350 6400 3350
$Comp
-L Transistor_BJT:MMBT3904 Q304
-U 1 1 5E539860
-P 7200 2500
-F 0 "Q304" H 7391 2546 50 0000 L CNN
-F 1 "MMBT3904" H 7391 2455 50 0000 L CNN
-F 2 "Package_TO_SOT_SMD:SOT-23" H 7400 2425 50 0001 L CIN
-F 3 "https://www.fairchildsemi.com/datasheets/2N/2N3904.pdf" H 7200 2500 50 0001 L CNN
-F 4 "MMBT3904LT1G" H 7200 2500 50 0001 C CNN "MPN"
-F 5 "1" H 7200 2500 50 0001 C CNN "Need_order"
- 1 7200 2500
- 1 0 0 -1
-$EndComp
-$Comp
L Transistor_BJT:MMBT3904 Q305
U 1 1 5E53B125
P 9100 1750
@@ -2376,19 +2215,18 @@ $EndComp
$Comp
L Device:L_Core_Ferrite L?
U 1 1 5E58690F
-P 8500 2850
+P 8950 2850
AR Path="/5E2DC494/5E58690F" Ref="L?" Part="1"
AR Path="/5E3088F9/5E58690F" Ref="L311" Part="1"
-F 0 "L311" V 8725 2850 50 0000 C CNN
-F 1 "100uH" V 8634 2850 50 0000 C CNN
-F 2 "picardy:Sumida_CDRH6D28" H 8500 2850 50 0001 C CNN
-F 3 "~" H 8500 2850 50 0001 C CNN
-F 4 "CDRH6D28-101" V 8500 2850 50 0001 C CNN "MPN"
-F 5 "1" H 8500 2850 50 0001 C CNN "Need_order"
- 1 8500 2850
- 0 -1 -1 0
+F 0 "L311" V 9175 2850 50 0000 C CNN
+F 1 "100uH" V 9084 2850 50 0000 C CNN
+F 2 "picardy:Sumida_CDRH6D28" H 8950 2850 50 0001 C CNN
+F 3 "~" H 8950 2850 50 0001 C CNN
+F 4 "CDRH6D28-101" V 8950 2850 50 0001 C CNN "MPN"
+F 5 "1" H 8950 2850 50 0001 C CNN "Need_order"
+ 1 8950 2850
+ 0 1 -1 0
$EndComp
-Connection ~ 8350 2850
Wire Wire Line
1550 1200 1550 1500
Wire Wire Line
@@ -2806,8 +2644,6 @@ Wire Wire Line
1000 1100 1300 1100
Wire Wire Line
5800 1850 6200 1850
-Wire Wire Line
- 6350 1500 6300 1500
$Comp
L power:GNDA #PWR0318
U 1 1 5E8FA8FA
@@ -2850,26 +2686,16 @@ Wire Wire Line
$Comp
L Device:C_Small C333
U 1 1 5E430997
-P 7100 1750
-F 0 "C333" V 7237 1750 50 0000 C CNN
-F 1 "0.1uF" V 7328 1750 50 0000 C CNN
-F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 7100 1750 50 0001 C CNN
-F 3 "~" H 7100 1750 50 0001 C CNN
-F 4 "GRM188R71H104KA93D" H 7100 1750 50 0001 C CNN "MPN"
-F 5 "0" H 7100 1750 50 0001 C CNN "Need_order"
- 1 7100 1750
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+F 3 "~" H 7100 1000 50 0001 C CNN
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0 1 1 0
$EndComp
-Wire Wire Line
- 6900 2500 7000 2500
-Wire Wire Line
- 7650 1750 7200 1750
-Wire Wire Line
- 7650 1200 7650 1750
-Wire Wire Line
- 7000 1750 6900 1750
-Wire Wire Line
- 6900 1750 6900 2500
$Comp
L Connector:TestPoint TP?
U 1 1 5E5BF840
@@ -2944,4 +2770,248 @@ Wire Wire Line
Connection ~ 9600 5200
Wire Wire Line
9600 5200 10300 5200
+$Comp
+L Amplifier_Audio:SSM2167 U304
+U 1 1 5E691F62
+P 7700 2200
+F 0 "U304" H 7700 2881 50 0000 C CNN
+F 1 "SSM2167" H 7700 2790 50 0000 C CNN
+F 2 "Package_SO:MSOP-10_3x3mm_P0.5mm" H 7700 2200 50 0001 C CNN
+F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/SSM2167.pdf" H 7350 2650 50 0001 C CNN
+ 1 7700 2200
+ 1 0 0 -1
+$EndComp
+$Comp
+L power:GNDA #PWR0347
+U 1 1 5E6F0F11
+P 7700 2700
+F 0 "#PWR0347" H 7700 2450 50 0001 C CNN
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+F 2 "" H 7700 2700 50 0001 C CNN
+F 3 "" H 7700 2700 50 0001 C CNN
+ 1 7700 2700
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+$EndComp
+$Comp
+L power:GNDA #PWR0348
+U 1 1 5E6F1A2C
+P 8000 1500
+F 0 "#PWR0348" H 8000 1250 50 0001 C CNN
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+F 2 "" H 8000 1500 50 0001 C CNN
+F 3 "" H 8000 1500 50 0001 C CNN
+ 1 8000 1500
+ -1 0 0 -1
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 7700 1300
+Wire Wire Line
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+Wire Wire Line
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+Text HLabel 7200 1700 0 50 Input ~ 0
+MIC_SDn
+Connection ~ 7450 750
+Wire Wire Line
+ 7200 1000 7250 1000
+Connection ~ 7250 1000
+Wire Wire Line
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+Wire Wire Line
+ 6800 1000 6800 1900
+Wire Wire Line
+ 6800 1900 7300 1900
+$Comp
+L Device:C_Small C362
+U 1 1 5E8C11EF
+P 7100 2150
+F 0 "C362" H 7192 2104 50 0000 L CNN
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+F 3 "~" H 7100 2150 50 0001 C CNN
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+F 5 "0" H 7100 2150 50 0001 C CNN "Need_order"
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+ -1 0 0 1
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L Device:C_Small C363
+U 1 1 5E8F6AE0
+P 7100 2400
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+F 3 "~" H 7100 2400 50 0001 C CNN
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+F 5 "0" H 7100 2400 50 0001 C CNN "Need_order"
+ 1 7100 2400
+ 1 0 0 -1
+$EndComp
+Connection ~ 7100 2300
+$Comp
+L power:GNDA #PWR0346
+U 1 1 5E910621
+P 7100 2500
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+F 2 "" H 7100 2500 50 0001 C CNN
+F 3 "" H 7100 2500 50 0001 C CNN
+ 1 7100 2500
+ -1 0 0 -1
+$EndComp
+$Comp
+L Device:R R331
+U 1 1 5E9D9320
+P 7700 3250
+F 0 "R331" H 7630 3296 50 0000 R CNN
+F 1 "10k" H 7630 3205 50 0000 R CNN
+F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7630 3250 50 0001 C CNN
+F 3 "~" H 7700 3250 50 0001 C CNN
+F 4 "0" H 7700 3250 50 0001 C CNN "Need_order"
+ 1 7700 3250
+ -1 0 0 -1
+$EndComp
+Wire Wire Line
+ 8000 1300 8650 1300
+Wire Wire Line
+ 8650 1300 8650 2300
+Connection ~ 8000 1300
+$Comp
+L Device:R R332
+U 1 1 5EA588A6
+P 8350 2300
+F 0 "R332" V 8143 2300 50 0000 C CNN
+F 1 "2k" V 8234 2300 50 0000 C CNN
+F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 8280 2300 50 0001 C CNN
+F 3 "~" H 8350 2300 50 0001 C CNN
+F 4 "0" H 8350 2300 50 0001 C CNN "Need_order"
+F 5 "Noise gate: -40dBV 0, -48 1k, -54 2k, -55 5k" V 8350 2300 50 0001 C CNN "Description"
+ 1 8350 2300
+ 0 1 1 0
+$EndComp
+Connection ~ 8650 2300
+Wire Wire Line
+ 8650 2300 8650 2400
+Wire Wire Line
+ 8200 2300 8100 2300
+$Comp
+L power:GNDA #PWR0349
+U 1 1 5EAC2FEA
+P 8750 2350
+F 0 "#PWR0349" H 8750 2100 50 0001 C CNN
+F 1 "GNDA" H 8755 2177 50 0000 C CNN
+F 2 "" H 8750 2350 50 0001 C CNN
+F 3 "" H 8750 2350 50 0001 C CNN
+ 1 8750 2350
+ -1 0 0 -1
+$EndComp
+Wire Wire Line
+ 8750 2350 8750 2200
+Wire Wire Line
+ 8750 2200 8600 2200
+Wire Wire Line
+ 8400 2200 8100 2200
+Wire Wire Line
+ 8500 2300 8650 2300
+Wire Wire Line
+ 8100 2400 8200 2400
+Wire Wire Line
+ 8650 2400 8500 2400
+$Comp
+L Device:R R318
+U 1 1 5E4A289A
+P 8350 2400
+F 0 "R318" V 8465 2400 50 0000 C CNN
+F 1 "75k" V 8556 2400 50 0000 C CNN
+F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 8280 2400 50 0001 C CNN
+F 3 "~" H 8350 2400 50 0001 C CNN
+F 4 "0" H 8350 2400 50 0001 C CNN "Need_order"
+F 5 "Compression: 1:1 0, 2:1 15k, 3:1 35k, 5:1 75k, 10:1 175k Ohm" V 8350 2400 50 0001 C CNN "Description"
+ 1 8350 2400
+ 0 1 1 0
+$EndComp
+$Comp
+L power:GNDA #PWR0326
+U 1 1 5E40678F
+P 9100 3050
+F 0 "#PWR0326" H 9100 2800 50 0001 C CNN
+F 1 "GNDA" H 9105 2877 50 0000 C CNN
+F 2 "" H 9100 3050 50 0001 C CNN
+F 3 "" H 9100 3050 50 0001 C CNN
+ 1 9100 3050
+ -1 0 0 -1
+$EndComp
+$Comp
+L Device:C_Small C343
+U 1 1 5E406785
+P 9100 2950
+F 0 "C343" H 9008 2904 50 0000 R CNN
+F 1 "0.1uF" H 9008 2995 50 0000 R CNN
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+F 3 "~" H 9100 2950 50 0001 C CNN
+F 4 "GRM188R71H104KA93D" H 9100 2950 50 0001 C CNN "MPN"
+F 5 "0" H 9100 2950 50 0001 C CNN "Need_order"
+ 1 9100 2950
+ 1 0 0 1
+$EndComp
+Wire Wire Line
+ 9150 2850 9100 2850
+Connection ~ 9100 2850
+Wire Wire Line
+ 8100 2000 8150 2000
+Wire Wire Line
+ 8150 2000 8150 2750
+Wire Wire Line
+ 7700 3450 8250 3450
+Connection ~ 7700 3450
+Wire Wire Line
+ 8150 2950 8150 3050
+Wire Wire Line
+ 8150 3050 7700 3050
+Text Notes 5850 250 0 118 ~ 24
+Is the audio level high enough?
+$Comp
+L Connector:TestPoint TP?
+U 1 1 5EED9F23
+P 8150 3050
+AR Path="/5E4C0E28/5EED9F23" Ref="TP?" Part="1"
+AR Path="/5E3088F9/5EED9F23" Ref="TP303" Part="1"
+F 0 "TP303" H 8150 3283 50 0000 C CNN
+F 1 "MIC OUT" H 8150 3374 50 0000 C CNN
+F 2 "TestPoint:TestPoint_Pad_D1.5mm" H 8350 3050 50 0001 C CNN
+F 3 "~" H 8350 3050 50 0001 C CNN
+F 4 "0" H 8150 3050 50 0001 C CNN "Need_order"
+ 1 8150 3050
+ -1 0 0 1
+$EndComp
+Connection ~ 8150 3050
+$Comp
+L power:+3.3V #PWR?
+U 1 1 5F0402FB
+P 7700 1300
+AR Path="/5E2FA006/5F0402FB" Ref="#PWR?" Part="1"
+AR Path="/5F0402FB" Ref="#PWR?" Part="1"
+AR Path="/5E3088F9/5F0402FB" Ref="#PWR?" Part="1"
+F 0 "#PWR?" H 7700 1150 50 0001 C CNN
+F 1 "+3.3V" H 7715 1473 50 0000 C CNN
+F 2 "" H 7700 1300 50 0001 C CNN
+F 3 "" H 7700 1300 50 0001 C CNN
+ 1 7700 1300
+ 1 0 0 -1
+$EndComp
$EndSCHEMATC