diff options
| author | Matthias P. Braendli <matthias.braendli@mpb.li> | 2020-12-28 14:05:58 +0100 |
|---|---|---|
| committer | Matthias P. Braendli <matthias.braendli@mpb.li> | 2020-12-28 14:05:58 +0100 |
| commit | 6379e2e52f1d659a051e20af75f2b70676ec3bf4 (patch) | |
| tree | 0a44a344a061cb571cea5a6fcdfa115218cf3eaf | |
| parent | 8d45f098b818206d3d91152f92175cbea0b56c8e (diff) | |
| download | picardy-6379e2e52f1d659a051e20af75f2b70676ec3bf4.tar.gz picardy-6379e2e52f1d659a051e20af75f2b70676ec3bf4.tar.bz2 picardy-6379e2e52f1d659a051e20af75f2b70676ec3bf4.zip | |
Update README, notes and Qucs BPF145
| -rw-r--r-- | README.md | 4 | ||||
| -rw-r--r-- | kicad/control.sch | 2 | ||||
| -rw-r--r-- | qucs/BPF145.sch | 24 |
3 files changed, 21 insertions, 9 deletions
@@ -55,11 +55,10 @@ Issues * 5V jumper is less useful as hoped * Intention: disable VHF stuff * Unintended effect: removes LCD backlight -* Are 10uH for L311 and L305 ok too? * C319 and C326 are redundant * BC856W wrong footprint * R327 upsets DC offset of audio amp, capacitive decoupling needed -* 2m filters from LimeRFE use values I don't stash +* 2m LPF from LimeRFE use values I don't stash * 20pF done with 2x 10pF * SW: ADC input for buttons looks messed up... * Connect 3V3 LDO to 12V directly @@ -76,6 +75,7 @@ Issues * Next to R515 * I still have spurious next to transmit frequency, spaced 200kHz because of the DCDC converter * Measure 8V current! +* Added 100nF caps on microphone connector to suppress RF being coupled PCB Assembly Plan ================= diff --git a/kicad/control.sch b/kicad/control.sch index e6f453a..5b08978 100644 --- a/kicad/control.sch +++ b/kicad/control.sch @@ -1476,4 +1476,6 @@ Wire Wire Line 8900 4850 8900 5050 Wire Wire Line 8900 5050 9200 5050 +Text Notes 1900 6150 0 47 ~ 0 +Added 100nF caps\non all pins to GND $EndSCHEMATC diff --git a/qucs/BPF145.sch b/qucs/BPF145.sch index ea88bec..5110f7c 100644 --- a/qucs/BPF145.sch +++ b/qucs/BPF145.sch @@ -1,4 +1,4 @@ -<Qucs Schematic 0.0.19> +<Qucs Schematic 0.0.20> <Properties> <View=0,-60,1657,800,0.909091,0,0> <Grid=10,10,1> @@ -18,18 +18,21 @@ <Components> <Pac P1 1 90 230 18 -26 0 1 "1" 1 "50 Ohm" 1 "0 dBm" 0 "14070 kHz" 0 "26.85" 0> <Eqn Eqn1 1 420 600 -23 14 0 0 "S11_dB=dB(S[1,1])" 1 "S12_dB=dB(S[1,2])" 1 "yes" 0> - <.SP SP1 1 120 560 -50 73 0 0 "lin" 1 "100 MHz" 1 "250 MHz" 1 "300" 1 "no" 0 "1" 0 "2" 0 "no" 0 "no" 0> - <C C1 1 270 180 -26 -67 0 2 "3.6 pF" 1 "" 0 "neutral" 0> + <.SP SP1 1 120 560 -50 73 0 0 "lin" 1 "100 MHz" 1 "210 MHz" 1 "300" 1 "no" 0 "1" 0 "2" 0 "no" 0 "no" 0> <L L1 1 400 180 -26 10 0 0 "330 nH" 1 "" 0> <L L4 1 490 280 10 -26 0 1 "39 nH" 1 "" 0> <L L5 1 490 380 10 -26 0 1 "12 nH" 1 "" 0> <L L6 1 630 280 10 -26 0 1 "27 nH" 1 "" 0> <C C6 1 490 470 -103 -26 0 3 "43 pF" 1 "" 0 "neutral" 0> <C C7 1 630 470 -103 -26 0 3 "22 pF" 1 "" 0 "neutral" 0> - <C C5 1 720 180 -26 -67 0 2 "3.6 pF" 1 "" 0 "neutral" 0> <L L2 1 850 180 -26 10 0 0 "330 nH" 1 "" 0> - <GND * 1 560 500 0 0 0 0> + <GND * 5 560 500 0 0 0 0> <Pac P2 1 1170 250 18 -26 0 1 "2" 1 "50 Ohm" 1 "0 dBm" 0 "14070 kHz" 0 "26.85" 0> + <C C1 1 270 180 -26 -67 0 2 "3.3 pF" 1 "" 0 "neutral" 0> + <C C5 1 720 180 -26 -67 0 2 "3.3 pF" 1 "" 0 "neutral" 0> + <L L7 1 980 260 10 -26 0 1 "400 nH" 1 "" 0> + <C C8 1 980 440 -103 -26 0 3 "4.73 pF" 1 "" 0 "neutral" 0> + <R R1 1 980 350 15 -26 0 1 "1 Ohm" 1 "26.85" 0 "0.0" 0 "0.0" 0 "26.85" 0 "european" 0> </Components> <Wires> <90 180 90 200 "" 0 0 0 ""> @@ -49,11 +52,18 @@ <490 310 490 350 "" 0 0 0 ""> <490 410 490 440 "" 0 0 0 ""> <1170 180 1170 220 "" 0 0 0 ""> - <880 180 1170 180 "" 0 0 0 ""> - <630 500 1170 500 "" 0 0 0 ""> + <880 180 980 180 "" 0 0 0 ""> + <630 500 980 500 "" 0 0 0 ""> <1170 280 1170 500 "" 0 0 0 ""> + <980 180 1170 180 "" 0 0 0 ""> + <980 180 980 230 "" 0 0 0 ""> + <980 500 1170 500 "" 0 0 0 ""> + <980 290 980 320 "" 0 0 0 ""> + <980 470 980 500 "" 0 0 0 ""> + <980 380 980 410 "" 0 0 0 ""> </Wires> <Diagrams> </Diagrams> <Paintings> + <Text 930 120 12 #000000 0 "114.286 notch filter"> </Paintings> |