Implement audio pre-amp
This commit is contained in:
parent
229b69d5c9
commit
0ad4410f8a
@ -3,7 +3,7 @@ EELAYER 30 0
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EELAYER END
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$Descr A4 11693 8268
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encoding utf-8
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Sheet 3 4
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Sheet 4 4
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Title ""
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Date "2020-10-03"
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Rev ""
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@ -579,4 +579,12 @@ F 3 "" H 1600 4300 50 0001 C CNN
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AUDIO_L
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Text HLabel 7150 4300 2 50 Input ~ 0
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AUDIO_R
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$EndSCHEMATC
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313
kicad/io.sch
313
kicad/io.sch
@ -638,14 +638,6 @@ F 3 "" H 1600 5200 50 0001 C CNN
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AUDIO_R
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Text Label 1950 4900 2 50 ~ 0
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AUDIO_IN_L
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AUDIO_IN_R
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Wire Wire Line
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Text HLabel 4700 4450 2 50 Output ~ 0
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AUDIO_L
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Text Label 1650 4300 2 50 ~ 0
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Wire Wire Line
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4700 4450 4600 4450
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Connection ~ 4600 4450
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3300 5900 3400 5900
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3300 6100 3400 6100
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Text Notes 3500 7100 0 50 ~ 0
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TODO: Set sensible\ngain for input stage.
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$EndSCHEMATC
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@ -1,6 +1,41 @@
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EESchema-LIBRARY Version 2.4
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#encoding utf-8
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#
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# Amplifier_Operational_LM358
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#
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DEF Amplifier_Operational_LM358 U 0 5 Y Y 3 L N
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F0 "U" 0 200 50 H V L CNN
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F1 "Amplifier_Operational_LM358" 0 -200 50 H V L CNN
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F2 "" 0 0 50 H I C CNN
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F3 "" 0 0 50 H I C CNN
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ALIAS LM358 AD8620 LMC6062 LMC6082 TL062 TL072 TL082 NE5532 SA5532 RC4558 RC4560 RC4580 LMV358 TS912 TSV912IDT TSV912IST TLC272 TLC277 MCP602 OPA2134 OPA2340 OPA2376xxD OPA2376xxDGK MC33078 MC33178 LM4562 OP249 OP275 ADA4075-2 MCP6002-xP MCP6002-xSN MCP6002-xMS LM7332 OPA2333xxD OPA2333xxDGK LMC6482 LT1492 LTC6081xMS8 LM6172 MCP6L92 NJM2043 NJM2114 NJM4556A NJM4558 NJM4559 NJM4560 NJM4580 NJM5532 ADA4807-2ARM OPA2691 LT6233 OPA2356xxD OPA2356xxDGK OPA1612AxD MC33172 OPA1602 TLV2372
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$FPLIST
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SOIC*3.9x4.9mm*P1.27mm*
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DIP*W7.62mm*
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TO*99*
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OnSemi*Micro8*
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TSSOP*3x3mm*P0.65mm*
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TSSOP*4.4x3mm*P0.65mm*
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MSOP*3x3mm*P0.65mm*
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SSOP*3.9x4.9mm*P0.635mm*
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LFCSP*2x2mm*P0.5mm*
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*SIP*
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SOIC*5.3x6.2mm*P1.27mm*
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$ENDFPLIST
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DRAW
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P 4 1 1 10 -200 200 200 0 -200 -200 -200 200 f
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P 4 2 1 10 -200 200 200 0 -200 -200 -200 200 f
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X ~ 1 300 0 100 L 50 50 1 1 O
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X - 2 -300 -100 100 R 50 50 1 1 I
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X + 3 -300 100 100 R 50 50 1 1 I
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X + 5 -300 100 100 R 50 50 2 1 I
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X - 6 -300 -100 100 R 50 50 2 1 I
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X ~ 7 300 0 100 L 50 50 2 1 O
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X V- 4 -100 -300 150 U 50 50 3 1 W
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X V+ 8 -100 300 150 D 50 50 3 1 W
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ENDDRAW
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ENDDEF
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#
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# Connector_AudioJack3
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#
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DEF Connector_AudioJack3 J 0 20 Y Y 1 F N
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@ -19,40 +19,6 @@ U 5F7CBB94
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F8 "WS1_TX" I L 3850 1450 50
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F9 "WS0_RX" O L 3850 1350 50
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F12 "USB_UART_DTR" O L 3850 1900 50
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$EndSheet
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Wire Wire Line
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3650 1800 3850 1800
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Wire Wire Line
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F5 "DMX_DE" O R 3650 1100 50
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F7 "WS1_TX" O R 3650 1450 50
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F8 "WS0_RX" I R 3650 1350 50
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F9 "CONTROL_UART_IN" I R 3650 1800 50
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F10 "CONTROL_UART_OUT" O R 3650 1700 50
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F11 "WS1_RX" I R 3650 1550 50
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F12 "CONTROL_UART_RST" I R 3650 1900 50
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||||
F13 "AUDIO_L" I R 3650 2050 50
|
||||
F14 "AUDIO_R" I R 3650 2150 50
|
||||
$EndSheet
|
||||
$Sheet
|
||||
S 3850 650 1250 1600
|
||||
U 5F8467A7
|
||||
F0 "io" 50
|
||||
F1 "io.sch" 50
|
||||
F2 "DMX_RO" O L 3850 800 50
|
||||
F3 "DMX_RE" I L 3850 900 50
|
||||
F4 "DMX_DI" I L 3850 1000 50
|
||||
F5 "DMX_DE" I L 3850 1100 50
|
||||
F6 "WS0_TX" I L 3850 1250 50
|
||||
F7 "WS1_RX" O L 3850 1550 50
|
||||
F8 "WS1_TX" I L 3850 1450 50
|
||||
F9 "WS0_RX" O L 3850 1350 50
|
||||
F10 "USB_UART_IN" O L 3850 1800 50
|
||||
F11 "USB_UART_OUT" I L 3850 1700 50
|
||||
F12 "USB_UART_DTR" O L 3850 1900 50
|
||||
F13 "AUDIO_L" O L 3850 2050 50
|
||||
F14 "AUDIO_R" O L 3850 2150 50
|
||||
$EndSheet
|
||||
Wire Wire Line
|
||||
3650 2050 3850 2050
|
||||
Wire Wire Line
|
||||
3850 2150 3650 2150
|
||||
$EndSCHEMATC
|
||||
|
||||
Loading…
Reference in New Issue
Block a user