kelvin
/
ism-transceiver-915mhz
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Finish first draft of LO amplifier

This commit is contained in:
Kelvin Ly 2019-04-13 18:49:50 -04:00
parent b9aec35934
commit 2e5082f8f0
9 changed files with 840 additions and 736 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
pcb/discrete/discrete-rf-board/discrete-rf-board.bak
View File

@ -1,6 +1,6 @@
EESchema Schematic File Version 4
LIBS:discrete-rf-board-cache
EELAYER 26 0
EELAYER 29 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8

2
pcb/discrete/discrete-rf-board/discrete-rf-board.sch
View File

@ -1,6 +1,6 @@
EESchema Schematic File Version 4
LIBS:discrete-rf-board-cache
EELAYER 26 0
EELAYER 29 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8

362
pcb/discrete/discrete-rf-board/lo.bak
View File

@ -1,6 +1,6 @@
EESchema Schematic File Version 4
LIBS:discrete-rf-board-cache
EELAYER 26 0
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
@ -200,10 +200,10 @@ Text HLabel 2750 3750 0 50 Input ~ 0
LE
Text HLabel 2750 3650 0 50 Input ~ 0
DATA
Text HLabel 3150 3250 0 50 Input ~ 0
Text HLabel 2300 2550 0 50 Input ~ 0
3V3
Wire Wire Line
3400 3250 3150 3250
3400 3250 3200 3250
$Comp
L power:GND #PWR?
U 1 1 5CA89918
@ -237,7 +237,7 @@ F 3 "~" H 5100 3000 50 0001 C CNN
1 5100 3000
1 0 0 -1
$EndComp
Text Label 3200 3250 0 50 ~ 0
Text Label 2950 2550 0 50 ~ 0
3V3
Text Label 5100 2850 0 50 ~ 0
3V3
@ -398,7 +398,7 @@ Wire Wire Line
Text Notes 2200 3400 0 50 ~ 0
TODO figure out XTAL freq
Text Notes 800 5300 0 50 ~ 0
Optimum inductance = 3.98 nH\nTODO add 470R resistors in parallel with inductors\nplace the inductors at right angles to avoid coupling
Optimum inductance = 3.98 nH\nTODO place the inductors at right angles to avoid coupling
$Comp
L Device:L_Small L?
U 1 1 5CADEE7E
@ -619,39 +619,39 @@ Wire Wire Line
$Comp
L discrete-parts:Q_NPN_BCEE Q?
U 1 1 5CB0C390
P 9200 4150
F 0 "Q?" H 9500 4150 50 0000 C CNN
F 1 "BFU520" H 9400 4050 50 0000 L CNN
F 2 "" H 9200 4150 50 0001 C CNN
F 3 "" H 9200 4150 50 0001 C CNN
F 4 "771-BFU520XRR" H 9200 4150 50 0001 C CNN "Mouser"
1 9200 4150
P 9650 4150
F 0 "Q?" H 9950 4150 50 0000 C CNN
F 1 "BFU520" H 9850 4050 50 0000 L CNN
F 2 "" H 9650 4150 50 0001 C CNN
F 3 "" H 9650 4150 50 0001 C CNN
F 4 "771-BFU520XRR" H 9650 4150 50 0001 C CNN "Mouser"
1 9650 4150
1 0 0 -1
$EndComp
Text Notes 7100 4700 0 50 ~ 0
IL=-0.7dB
Text HLabel 10350 3550 2 50 Input ~ 0
Text HLabel 10800 3550 2 50 Input ~ 0
LO
$Comp
L power:GND #PWR?
U 1 1 5CB0CCE1
P 9250 4450
F 0 "#PWR?" H 9250 4200 50 0001 C CNN
F 1 "GND" H 9250 4300 50 0000 C CNN
F 2 "" H 9250 4450 50 0001 C CNN
F 3 "" H 9250 4450 50 0001 C CNN
1 9250 4450
P 9700 4450
F 0 "#PWR?" H 9700 4200 50 0001 C CNN
F 1 "GND" H 9700 4300 50 0000 C CNN
F 2 "" H 9700 4450 50 0001 C CNN
F 3 "" H 9700 4450 50 0001 C CNN
1 9700 4450
1 0 0 -1
$EndComp
Wire Wire Line
9250 4350 9250 4400
9700 4350 9700 4400
Wire Wire Line
9350 4350 9350 4400
9800 4350 9800 4400
Wire Wire Line
9350 4400 9250 4400
Connection ~ 9250 4400
9800 4400 9700 4400
Connection ~ 9700 4400
Wire Wire Line
9250 4400 9250 4450
9700 4400 9700 4450
$Comp
L Connector:Conn_Coaxial J?
U 1 1 5CB11865
@ -685,35 +685,33 @@ Wire Wire Line
$Comp
L Connector:Conn_Coaxial J?
U 1 1 5CB1681E
P 10100 3850
F 0 "J?" H 10110 3970 50 0000 C CNN
F 1 "Conn_Coaxial" V 10215 3850 50 0000 C CNN
F 2 "" H 10100 3850 50 0001 C CNN
F 3 " ~" H 10100 3850 50 0001 C CNN
1 10100 3850
P 10550 3850
F 0 "J?" H 10560 3970 50 0000 C CNN
F 1 "Conn_Coaxial" V 10665 3850 50 0000 C CNN
F 2 "" H 10550 3850 50 0001 C CNN
F 3 " ~" H 10550 3850 50 0001 C CNN
1 10550 3850
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5CB16963
P 10100 4100
F 0 "#PWR?" H 10100 3850 50 0001 C CNN
F 1 "GND" H 10100 3950 50 0000 C CNN
F 2 "" H 10100 4100 50 0001 C CNN
F 3 "" H 10100 4100 50 0001 C CNN
1 10100 4100
P 10550 4100
F 0 "#PWR?" H 10550 3850 50 0001 C CNN
F 1 "GND" H 10550 3950 50 0000 C CNN
F 2 "" H 10550 4100 50 0001 C CNN
F 3 "" H 10550 4100 50 0001 C CNN
1 10550 4100
1 0 0 -1
$EndComp
Wire Wire Line
10100 4050 10100 4100
10550 4050 10550 4100
Text Notes 6250 4650 0 50 ~ 0
-3 to +5dBm?\ndatasheet is unclear
Wire Wire Line
10350 3550 9650 3550
10800 3550 10100 3550
Wire Wire Line
9650 3550 9650 3850
Wire Wire Line
9650 3850 9750 3850
10100 3550 10100 3850
$Comp
L Device:R_Small R?
U 1 1 5CB210CB
@ -775,7 +773,7 @@ L Device:L_Small L?
U 1 1 5CB34436
P 8600 4400
F 0 "L?" H 8630 4440 50 0000 L CNN
F 1 "L_Small" H 8630 4360 50 0000 L CNN
F 1 "9.1 nH" H 8630 4360 50 0000 L CNN
F 2 "" H 8600 4400 50 0001 C CNN
F 3 "~" H 8600 4400 50 0001 C CNN
1 8600 4400
@ -786,7 +784,7 @@ L Device:C_Small C?
U 1 1 5CB344FD
P 8750 4150
F 0 "C?" H 8760 4220 50 0000 L CNN
F 1 "C_Small" H 8760 4070 50 0000 L CNN
F 1 "7.5 pF" H 8760 4070 50 0000 L CNN
F 2 "" H 8750 4150 50 0001 C CNN
F 3 "~" H 8750 4150 50 0001 C CNN
1 8750 4150
@ -797,7 +795,7 @@ L Device:R_Small R?
U 1 1 5CB34623
P 8450 3200
F 0 "R?" H 8480 3220 50 0000 L CNN
F 1 "3.3k" H 8480 3160 50 0000 L CNN
F 1 "3.9k" H 8480 3160 50 0000 L CNN
F 2 "" H 8450 3200 50 0001 C CNN
F 3 "~" H 8450 3200 50 0001 C CNN
1 8450 3200
@ -823,149 +821,115 @@ F 3 "" H 8600 4600 50 0001 C CNN
$EndComp
Wire Wire Line
8600 4500 8600 4600
Wire Wire Line
8850 4150 8900 4150
Connection ~ 8900 4150
Wire Wire Line
8900 4150 8950 4150
$Comp
L Device:C_Small C?
U 1 1 5CB45D4E
P 9400 3850
F 0 "C?" H 9410 3920 50 0000 L CNN
F 1 "C_Small" H 9410 3770 50 0000 L CNN
F 2 "" H 9400 3850 50 0001 C CNN
F 3 "~" H 9400 3850 50 0001 C CNN
1 9400 3850
P 9850 3850
F 0 "C?" H 9860 3920 50 0000 L CNN
F 1 "100 pF" H 9860 3770 50 0000 L CNN
F 2 "" H 9850 3850 50 0001 C CNN
F 3 "~" H 9850 3850 50 0001 C CNN
1 9850 3850
0 -1 -1 0
$EndComp
$Comp
L Device:L_Small L?
U 1 1 5CB45DB8
P 9750 4300
F 0 "L?" H 9780 4340 50 0000 L CNN
F 1 "L_Small" H 9780 4260 50 0000 L CNN
F 2 "" H 9750 4300 50 0001 C CNN
F 3 "~" H 9750 4300 50 0001 C CNN
1 9750 4300
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5CB48FE3
P 9750 4500
F 0 "#PWR?" H 9750 4250 50 0001 C CNN
F 1 "GND" H 9750 4350 50 0000 C CNN
F 2 "" H 9750 4500 50 0001 C CNN
F 3 "" H 9750 4500 50 0001 C CNN
1 9750 4500
1 0 0 -1
$EndComp
Wire Wire Line
9750 4400 9750 4500
9950 3850 10100 3850
Connection ~ 10100 3850
Wire Wire Line
9750 4200 9750 3850
Connection ~ 9750 3850
9750 3850 9700 3850
Wire Wire Line
9750 3850 9900 3850
Wire Wire Line
9500 3850 9650 3850
Connection ~ 9650 3850
Wire Wire Line
9300 3850 9250 3850
Wire Wire Line
9250 3850 9250 3950
9700 3850 9700 3950
$Comp
L Device:L_Small L?
U 1 1 5CB55D86
P 9250 3400
F 0 "L?" H 9280 3440 50 0000 L CNN
F 1 "47 nH" H 9280 3360 50 0000 L CNN
F 2 "" H 9250 3400 50 0001 C CNN
F 3 "~" H 9250 3400 50 0001 C CNN
1 9250 3400
1 0 0 -1
P 9700 3500
F 0 "L?" H 9730 3540 50 0000 L CNN
F 1 "100 nH" H 9730 3460 50 0000 L CNN
F 2 "" H 9700 3500 50 0001 C CNN
F 3 "~" H 9700 3500 50 0001 C CNN
1 9700 3500
-1 0 0 -1
$EndComp
Wire Wire Line
9250 3500 9250 3850
Connection ~ 9250 3850
9700 3600 9700 3850
Connection ~ 9700 3850
$Comp
L Device:R_Small R?
U 1 1 5CB594A1
P 9250 3000
F 0 "R?" H 9280 3020 50 0000 L CNN
F 1 "22R" H 9280 2960 50 0000 L CNN
F 2 "" H 9250 3000 50 0001 C CNN
F 3 "~" H 9250 3000 50 0001 C CNN
1 9250 3000
P 9700 3000
F 0 "R?" H 9730 3020 50 0000 L CNN
F 1 "10R" H 9730 2960 50 0000 L CNN
F 2 "" H 9700 3000 50 0001 C CNN
F 3 "~" H 9700 3000 50 0001 C CNN
1 9700 3000
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C?
U 1 1 5CB5CE26
P 9950 2950
F 0 "C?" H 9960 3020 50 0000 L CNN
F 1 "10 nF" H 9960 2870 50 0000 L CNN
F 2 "" H 9950 2950 50 0001 C CNN
F 3 "~" H 9950 2950 50 0001 C CNN
1 9950 2950
P 10400 2950
F 0 "C?" H 10410 3020 50 0000 L CNN
F 1 "100 pF" H 10410 2870 50 0000 L CNN
F 2 "" H 10400 2950 50 0001 C CNN
F 3 "~" H 10400 2950 50 0001 C CNN
1 10400 2950
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C?
U 1 1 5CB5CE2D
P 10350 2950
F 0 "C?" H 10360 3020 50 0000 L CNN
F 1 "10 nF" H 10360 2870 50 0000 L CNN
F 2 "" H 10350 2950 50 0001 C CNN
F 3 "~" H 10350 2950 50 0001 C CNN
1 10350 2950
P 10800 2950
F 0 "C?" H 10810 3020 50 0000 L CNN
F 1 "1 nF" H 10810 2870 50 0000 L CNN
F 2 "" H 10800 2950 50 0001 C CNN
F 3 "~" H 10800 2950 50 0001 C CNN
1 10800 2950
1 0 0 -1
$EndComp
Wire Wire Line
10350 2850 10350 2750
10800 2850 10800 2750
Wire Wire Line
10350 2750 9950 2750
10800 2750 10400 2750
Wire Wire Line
9950 2750 9950 2850
10400 2750 10400 2850
Wire Wire Line
9950 2750 9750 2750
Connection ~ 9950 2750
10400 2750 10200 2750
Connection ~ 10400 2750
$Comp
L power:GND #PWR?
U 1 1 5CB5CE39
P 9950 3100
F 0 "#PWR?" H 9950 2850 50 0001 C CNN
F 1 "GND" H 9950 2950 50 0000 C CNN
F 2 "" H 9950 3100 50 0001 C CNN
F 3 "" H 9950 3100 50 0001 C CNN
1 9950 3100
P 10400 3100
F 0 "#PWR?" H 10400 2850 50 0001 C CNN
F 1 "GND" H 10400 2950 50 0000 C CNN
F 2 "" H 10400 3100 50 0001 C CNN
F 3 "" H 10400 3100 50 0001 C CNN
1 10400 3100
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5CB5CE3F
P 10350 3100
F 0 "#PWR?" H 10350 2850 50 0001 C CNN
F 1 "GND" H 10350 2950 50 0000 C CNN
F 2 "" H 10350 3100 50 0001 C CNN
F 3 "" H 10350 3100 50 0001 C CNN
1 10350 3100
P 10800 3100
F 0 "#PWR?" H 10800 2850 50 0001 C CNN
F 1 "GND" H 10800 2950 50 0000 C CNN
F 2 "" H 10800 3100 50 0001 C CNN
F 3 "" H 10800 3100 50 0001 C CNN
1 10800 3100
1 0 0 -1
$EndComp
Wire Wire Line
10350 3100 10350 3050
10800 3100 10800 3050
Wire Wire Line
9950 3050 9950 3100
10400 3050 10400 3100
Wire Wire Line
9750 2750 9750 3200
10200 2750 10200 3200
Wire Wire Line
9750 3200 9250 3200
10200 3200 9700 3200
Wire Wire Line
9250 3200 9250 3300
9700 3200 9700 3400
Wire Wire Line
9250 3100 9250 3150
Connection ~ 9250 3200
9700 3100 9700 3150
Connection ~ 9700 3200
$Comp
L Device:R_Small R?
U 1 1 5CB71150
@ -1007,25 +971,113 @@ Wire Wire Line
Wire Wire Line
9100 2950 9100 3150
Wire Wire Line
9100 3150 9250 3150
Connection ~ 9250 3150
9100 3150 9700 3150
Connection ~ 9700 3150
Wire Wire Line
9250 3150 9250 3200
Wire Wire Line
8900 3400 8900 4150
Connection ~ 8900 3400
Text Notes 9100 4750 0 50 ~ 0
~~10 dB gain
Text Notes 8550 2300 0 50 ~ 0
TODO figure out DC biasing network
Text Label 9250 2700 0 50 ~ 0
9700 3150 9700 3200
Text Notes 9300 4800 0 50 ~ 0
~~20 dB gain according to SPICE model,\n~~17 dB gain to S parameter model in scikit-rf
Text Label 9700 2700 0 50 ~ 0
5V
Text Notes 9400 2500 0 50 ~ 0
10 mA bias current
Text Notes 9850 2500 0 50 ~ 0
20 mA bias current
Text Notes 9400 4950 0 50 ~ 0
Compression point should at ~~4dBm
Text HLabel 9250 2600 1 50 Input ~ 0
Compression point should at ~~-10dBm
Text HLabel 9700 2600 1 50 Input ~ 0
+5V0
Wire Wire Line
9250 2600 9250 2900
9700 2600 9700 2900
Wire Wire Line
10100 3850 10350 3850
$Comp
L Device:R_Small R?
U 1 1 5CB3952B
P 9100 4150
F 0 "R?" H 9130 4170 50 0000 L CNN
F 1 "10R" H 9130 4110 50 0000 L CNN
F 2 "" H 9100 4150 50 0001 C CNN
F 3 "~" H 9100 4150 50 0001 C CNN
1 9100 4150
0 -1 1 0
$EndComp
Wire Wire Line
9200 4150 9300 4150
Wire Wire Line
8850 4150 9000 4150
Wire Wire Line
8900 3400 9300 3400
Wire Wire Line
9300 3400 9300 4150
Connection ~ 8900 3400
Connection ~ 9300 4150
Wire Wire Line
9300 4150 9400 4150
Text Notes 6700 4900 0 50 ~ 0
TODO figure out attenuator values to get -20 dB and -13 dB
Text Notes 10250 3500 0 50 ~ 0
Target is ~~+6dBm
$Comp
L Device:C_Small C?
U 1 1 5CB63054
P 2750 2750
F 0 "C?" H 2760 2820 50 0000 L CNN
F 1 "100 nF" H 2760 2670 50 0000 L CNN
F 2 "" H 2750 2750 50 0001 C CNN
F 3 "~" H 2750 2750 50 0001 C CNN
1 2750 2750
-1 0 0 -1
$EndComp
$Comp
L Device:C_Small C?
U 1 1 5CB6305A
P 2350 2750
F 0 "C?" H 2360 2820 50 0000 L CNN
F 1 "100 nF" H 2360 2670 50 0000 L CNN
F 2 "" H 2350 2750 50 0001 C CNN
F 3 "~" H 2350 2750 50 0001 C CNN
1 2350 2750
-1 0 0 -1
$EndComp
Wire Wire Line
2350 2650 2350 2550
Wire Wire Line
2350 2550 2750 2550
Wire Wire Line
2750 2550 2750 2650
Connection ~ 2750 2550
$Comp
L power:GND #PWR?
U 1 1 5CB63065
P 2750 2900
F 0 "#PWR?" H 2750 2650 50 0001 C CNN
F 1 "GND" H 2750 2750 50 0000 C CNN
F 2 "" H 2750 2900 50 0001 C CNN
F 3 "" H 2750 2900 50 0001 C CNN
1 2750 2900
-1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5CB6306B
P 2350 2900
F 0 "#PWR?" H 2350 2650 50 0001 C CNN
F 1 "GND" H 2350 2750 50 0000 C CNN
F 2 "" H 2350 2900 50 0001 C CNN
F 3 "" H 2350 2900 50 0001 C CNN
1 2350 2900
-1 0 0 -1
$EndComp
Wire Wire Line
2350 2900 2350 2850
Wire Wire Line
2750 2850 2750 2900
Wire Wire Line
3200 2550 3200 3250
Wire Wire Line
2750 2550 3200 2550
Wire Wire Line
2350 2550 2300 2550
Connection ~ 2350 2550
Text Notes 5050 4650 0 50 ~ 0
TODO figure out loop filter\ncircuitry
$EndSCHEMATC

1198
pcb/discrete/discrete-rf-board/lo.sch
View File

File diff suppressed because it is too large Load Diff

2
pcb/discrete/discrete-rf-board/receiver.bak
View File

@ -1,6 +1,6 @@
EESchema Schematic File Version 4
LIBS:discrete-rf-board-cache
EELAYER 26 0
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8

2
pcb/discrete/discrete-rf-board/receiver.sch
View File

@ -1,6 +1,6 @@
EESchema Schematic File Version 4
LIBS:discrete-rf-board-cache
EELAYER 26 0
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8

2
pcb/discrete/discrete-rf-board/transmitter.bak
View File

@ -1,6 +1,6 @@
EESchema Schematic File Version 4
LIBS:discrete-rf-board-cache
EELAYER 26 0
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8

2
pcb/discrete/discrete-rf-board/transmitter.sch
View File

@ -1,6 +1,6 @@
EESchema Schematic File Version 4
LIBS:discrete-rf-board-cache
EELAYER 26 0
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8

4
sim/bfu520_lo_amplifier.sch
View File

@ -1,6 +1,6 @@
<Qucs Schematic 0.0.19>
<Properties>
<View=0,-133,1184,663,1,0,0>
<View=0,-73,1184,831,1,0,300>
<Grid=10,10,1>
<DataSet=bfu520_lo_amplifier.dat>
<DataDisplay=bfu520_lo_amplifier.dpl>
@ -16,7 +16,7 @@
<Symbol>
</Symbol>
<Components>
<L L1 1 490 60 -26 10 0 0 "470 nH" 1 "" 0>
<L L1 1 490 60 -26 10 0 0 "100 nH" 1 "" 0>
<GND * 1 180 140 0 0 0 0>
<Vdc V2 1 180 90 18 -26 0 1 "5 V" 1>
<C C2 1 620 180 -26 17 0 0 "100 pF" 1 "" 0 "neutral" 0>