electronics/shimatta-hpa
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change R26 & R27 to DNP because they decrease performance at low frequencies

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This commit is contained in:
Mario Hüttel 2017-11-19 00:50:09 +01:00
parent 85722e0b51
commit c824a1ce1d
3 changed files with 16 additions and 21 deletions
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2
headphone-amp-cache.lib
View File

@ -393,7 +393,7 @@ ENDDEF
# #
# POT # POT
# #
DEF POT RV 0 40 N N 1 F N DEF POT RV 0 40 Y N 1 F N
F0 "RV" -175 0 50 V V C CNN F0 "RV" -175 0 50 V V C CNN
F1 "POT" -100 0 50 V V C CNN F1 "POT" -100 0 50 V V C CNN
F2 "" 0 0 50 H I C CNN F2 "" 0 0 50 H I C CNN

12
headphone-amp.kicad_pcb
View File

@ -18,7 +18,7 @@
(34 B.Paste user) (34 B.Paste user)
(35 F.Paste user) (35 F.Paste user)
(36 B.SilkS user) (36 B.SilkS user)
(37 F.SilkS user hide) (37 F.SilkS user)
(38 B.Mask user) (38 B.Mask user)
(39 F.Mask user) (39 F.Mask user)
(40 Dwgs.User user) (40 Dwgs.User user)
@ -29,7 +29,7 @@
(45 Margin user) (45 Margin user)
(46 B.CrtYd user) (46 B.CrtYd user)
(47 F.CrtYd user) (47 F.CrtYd user)
(48 B.Fab user hide) (48 B.Fab user)
(49 F.Fab user hide) (49 F.Fab user hide)
) )
@ -52,7 +52,7 @@
(34 B.Paste user) (34 B.Paste user)
(35 F.Paste user) (35 F.Paste user)
(36 B.SilkS user) (36 B.SilkS user)
(37 F.SilkS user hide) (37 F.SilkS user)
(38 B.Mask user) (38 B.Mask user)
(39 F.Mask user) (39 F.Mask user)
(40 Dwgs.User user) (40 Dwgs.User user)
@ -63,7 +63,7 @@
(45 Margin user) (45 Margin user)
(46 B.CrtYd user) (46 B.CrtYd user)
(47 F.CrtYd user) (47 F.CrtYd user)
(48 B.Fab user hide) (48 B.Fab user)
(49 F.Fab user hide) (49 F.Fab user hide)
) )
@ -4233,7 +4233,7 @@
(fp_text reference R26 (at 0 1.45 90) (layer B.SilkS) (fp_text reference R26 (at 0 1.45 90) (layer B.SilkS)
(effects (font (size 1 1) (thickness 0.15)) (justify mirror)) (effects (font (size 1 1) (thickness 0.15)) (justify mirror))
) )
(fp_text value 330 (at 0 -1.55 90) (layer B.Fab) (fp_text value DNP (at 0 -1.55 90) (layer B.Fab)
(effects (font (size 1 1) (thickness 0.15)) (justify mirror)) (effects (font (size 1 1) (thickness 0.15)) (justify mirror))
) )
(fp_line (start 1.95 -0.7) (end -1.96 -0.7) (layer B.CrtYd) (width 0.05)) (fp_line (start 1.95 -0.7) (end -1.96 -0.7) (layer B.CrtYd) (width 0.05))
@ -4269,7 +4269,7 @@
(fp_text reference R27 (at 0 -1.5 180) (layer B.SilkS) (fp_text reference R27 (at 0 -1.5 180) (layer B.SilkS)
(effects (font (size 1 1) (thickness 0.15)) (justify mirror)) (effects (font (size 1 1) (thickness 0.15)) (justify mirror))
) )
(fp_text value 330 (at 0 -1.55 180) (layer B.Fab) (fp_text value DNP (at 0 -1.55 180) (layer B.Fab)
(effects (font (size 1 1) (thickness 0.15)) (justify mirror)) (effects (font (size 1 1) (thickness 0.15)) (justify mirror))
) )
(fp_text user %R (at 0 0 180) (layer B.Fab) (fp_text user %R (at 0 0 180) (layer B.Fab)

23
headphone-amp.sch
View File

@ -2,12 +2,8 @@ EESchema Schematic File Version 3
LIBS:headphone-amp-rescue LIBS:headphone-amp-rescue
LIBS:power LIBS:power
LIBS:device LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear LIBS:linear
LIBS:regul LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac LIBS:adc-dac
LIBS:memory LIBS:memory
LIBS:xilinx LIBS:xilinx
@ -22,20 +18,19 @@ LIBS:audio
LIBS:interface LIBS:interface
LIBS:digital-audio LIBS:digital-audio
LIBS:philips LIBS:philips
LIBS:display
LIBS:cypress LIBS:cypress
LIBS:siliconi LIBS:siliconi
LIBS:opto LIBS:opto
LIBS:atmel LIBS:atmel
LIBS:contrib LIBS:contrib
LIBS:valves
LIBS:analog
LIBS:regulators
LIBS:relais
LIBS:relays
LIBS:ti
LIBS:potentiometer
LIBS:w_connectors LIBS:w_connectors
LIBS:Connector
LIBS:Relay
LIBS:Transistor
LIBS:shimatta_analog
LIBS:shimatta_ti
LIBS:shimatta_relais
LIBS:shimatta_connectors
LIBS:headphone-amp-cache LIBS:headphone-amp-cache
EELAYER 26 0 EELAYER 26 0
EELAYER END EELAYER END
@ -2486,7 +2481,7 @@ L R R26
U 1 1 59D427C6 U 1 1 59D427C6
P 3350 5200 P 3350 5200
F 0 "R26" V 3143 5200 50 0000 C CNN F 0 "R26" V 3143 5200 50 0000 C CNN
F 1 "330" V 3234 5200 50 0000 C CNN F 1 "DNP" V 3234 5200 50 0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 3280 5200 50 0001 C CNN F 2 "Resistors_SMD:R_0603_HandSoldering" V 3280 5200 50 0001 C CNN
F 3 "" H 3350 5200 50 0001 C CNN F 3 "" H 3350 5200 50 0001 C CNN
1 3350 5200 1 3350 5200
@ -2497,7 +2492,7 @@ L R R27
U 1 1 59D4423C U 1 1 59D4423C
P 3350 5550 P 3350 5550
F 0 "R27" V 3143 5550 50 0000 C CNN F 0 "R27" V 3143 5550 50 0000 C CNN
F 1 "330" V 3234 5550 50 0000 C CNN F 1 "DNP" V 3234 5550 50 0000 C CNN
F 2 "Resistors_SMD:R_0603_HandSoldering" V 3280 5550 50 0001 C CNN F 2 "Resistors_SMD:R_0603_HandSoldering" V 3280 5550 50 0001 C CNN
F 3 "" H 3350 5550 50 0001 C CNN F 3 "" H 3350 5550 50 0001 C CNN
1 3350 5550 1 3350 5550