FreeCalypso > hg > freecalypso-schem2

changeset 61:fdc67fac0507

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transistor for driving the buzzer
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 01 Dec 2021 18:39:48 +0000
parents c661a87159c2
children a1b55af7f04d
files venus/src/MCL venus/src/pinouts/2SD2114K.pinout
diffstat 2 files changed, 25 insertions(+), 0 deletions(-) [+]
line wrap: on
line diff
--- a/venus/src/MCL	Wed Dec 01 06:50:25 2021 +0000
+++ b/venus/src/MCL	Wed Dec 01 18:39:48 2021 +0000
@@ -909,6 +909,16 @@
  part=UMH9
  slotmap=slotmap/Q402
 
+# Mighty NPN transistor for driving the magnetic buzzer
+Q405:
+ manufacturer=Rohm
+ manufacturer_part_number=2SD2114KT146V
+ description=Medium power NPN transistor, SMT3/SC-59
+ vendor=Digi-Key
+ vendor_part_number=2SD2114KT146VCT-ND
+ pinout=2SD2114K.pinout
+ npins=3
+
 Q600:
  part=EMB9
  slotmap=slotmap/Q600
@@ -1159,6 +1169,18 @@
  footprint=0402
  npins=2
 
+# external base resistor for Q405
+R418:
+ value=750R
+ footprint=0402
+ npins=2
+
+# external B-E resistor for Q405
+R419:
+ value=22k
+ footprint=0402
+ npins=2
+
 # attenuators in the Tx path from Rita to PA
 part chip_atten:
  device=RAC101A-3dB
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/venus/src/pinouts/2SD2114K.pinout	Wed Dec 01 18:39:48 2021 +0000
@@ -0,0 +1,3 @@
+E	1
+B	2
+C	3