Replace mic amp, reroute, improve silkscreen

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
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-	1    8900 2950
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+	1    8600 2950
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-F 3 "" H 8900 3050 50  0001 C CNN
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+F 3 "" H 8600 3050 50  0001 C CNN
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-Dynamic microphone
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-F 3 "" H 7050 1400 50  0001 C CNN
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-Wire Wire Line
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@@ -1425,7 +1286,7 @@ F 0 "C344" H 8562 5396 50  0000 R CNN
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-F 4 "0" H 7050 5800 50  0001 C CNN "Need_order"
+F 4 "" H 7050 5800 50  0001 C CNN "Need_order"
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@@ -1629,8 +1490,8 @@ $Comp
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 P 8850 1500
-F 0 "R321" H 8781 1546 50  0000 R CNN
-F 1 "390k" H 8781 1455 50  0000 R CNN
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 F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 8780 1500 50  0001 C CNN
 F 3 "~" H 8850 1500 50  0001 C CNN
 F 4 "0" H 8850 1500 50  0001 C CNN "Need_order"
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-Wire Wire Line
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-Wire Wire Line
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-Wire Wire Line
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 Wire Wire Line
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 SPKR
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 METER
-Text HLabel 6950 1000 0    50   Input ~ 0
+Text HLabel 7000 750  0    50   Input ~ 0
 MIC
-Text HLabel 6350 1500 2    50   Output ~ 0
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 HF_TX
 Text HLabel 10300 5500 0    50   Input ~ 0
 MUTE_SPKR
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 SWITCH_RELAYn
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 Text GLabel 8350 4900 1    50   Input ~ 0
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 Wire Wire Line
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-F 5 "1" H 7200 2500 50  0001 C CNN "Need_order"
-	1    7200 2500
-	1    0    0    -1  
-$EndComp
-$Comp
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@@ -2376,19 +2215,18 @@ $EndComp
 $Comp
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-P 8500 2850
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 AR Path="/5E2DC494/5E58690F" Ref="L?"  Part="1" 
 AR Path="/5E3088F9/5E58690F" Ref="L311"  Part="1" 
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-	0    -1   -1   0   
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+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
+P 7100 1000
+F 0 "C333" V 7237 1000 50  0000 C CNN
+F 1 "0.1uF" V 7328 1000 50  0000 C CNN
+F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 7100 1000 50  0001 C CNN
+F 3 "~" H 7100 1000 50  0001 C CNN
+F 4 "GRM188R71H104KA93D" H 7100 1000 50  0001 C CNN "MPN"
+F 5 "0" H 7100 1000 50  0001 C CNN "Need_order"
+	1    7100 1000
 	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
+F 1 "GNDA" H 7705 2527 50  0000 C CNN
+F 2 "" H 7700 2700 50  0001 C CNN
+F 3 "" H 7700 2700 50  0001 C CNN
+	1    7700 2700
+	-1   0    0    -1  
+$EndComp
+$Comp
+L power:GNDA #PWR0348
+U 1 1 5E6F1A2C
+P 8000 1500
+F 0 "#PWR0348" H 8000 1250 50  0001 C CNN
+F 1 "GNDA" H 8005 1327 50  0000 C CNN
+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  
+$EndComp
+Wire Wire Line
+	7700 1700 7700 1300
+Wire Wire Line
+	7700 1300 8000 1300
+Wire Wire Line
+	7700 1300 7200 1300
+Wire Wire Line
+	7200 1300 7200 1350
+Connection ~ 7700 1300
+Wire Wire Line
+	7200 1650 7200 2500
+Wire Wire Line
+	7200 2500 7300 2500
+Text HLabel 7200 1700 0    50   Input ~ 0
+MIC_SDn
+Connection ~ 7450 750 
+Wire Wire Line
+	7200 1000 7250 1000
+Connection ~ 7250 1000
+Wire Wire Line
+	7000 1000 6800 1000
+Wire Wire Line
+	6800 1000 6800 1900
+Wire Wire Line
+	6800 1900 7300 1900
+$Comp
+L Device:C_Small C362
+U 1 1 5E8C11EF
+P 7100 2150
+F 0 "C362" H 7192 2104 50  0000 L CNN
+F 1 "0.1uF-10uF" H 7192 2195 50  0000 L CNN
+F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 7100 2150 50  0001 C CNN
+F 3 "~" H 7100 2150 50  0001 C CNN
+F 4 "GRM188R71H104KA93D" H 7100 2150 50  0001 C CNN "MPN"
+F 5 "0" H 7100 2150 50  0001 C CNN "Need_order"
+	1    7100 2150
+	-1   0    0    1   
+$EndComp
+Wire Wire Line
+	7300 2000 7100 2000
+Wire Wire Line
+	7100 2000 7100 2050
+Wire Wire Line
+	7300 2300 7100 2300
+Wire Wire Line
+	7100 2300 7100 2250
+$Comp
+L Device:C_Small C363
+U 1 1 5E8F6AE0
+P 7100 2400
+F 0 "C363" H 7009 2446 50  0000 R CNN
+F 1 "DNF (470nF)" H 7009 2355 50  0000 R CNN
+F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 7100 2400 50  0001 C CNN
+F 3 "~" H 7100 2400 50  0001 C CNN
+F 4 "stash" H 7100 2400 50  0001 C CNN "MPN"
+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
+F 0 "#PWR0346" H 7100 2250 50  0001 C CNN
+F 1 "GNDA" H 7105 2327 50  0000 C CNN
+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
+F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 9100 2950 50  0001 C CNN
+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