FreeCalypso > hg > freecalypso-schem2
changeset 61:fdc67fac0507
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(-) [+] |
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--- 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