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  • 1 commit
  • 8 files changed
  • 1 contributor

Commits on Mar 27, 2020

  1. Continued design review, added U18 to offset stage

    @azonenberg
    azonenberg committed Mar 27, 2020
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    1f60af2 View commit details
88 changes: 46 additions & 42 deletions boards/entry-afe-characterization/cm_shift.sch
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Original file line number Diff line number Diff line change
@@ -4,9 +4,9 @@ EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 6 8
Sheet 5 8
Title "Entry-Level Oscilloscope AFE Characterization Platform"
Date "2020-03-26"
Date "2020-03-27"
Rev "0.1"
Comp "Antikernel Labs"
Comment1 ""
@@ -109,50 +109,28 @@ Wire Wire Line
3650 3050 3500 3050
Wire Wire Line
3650 3150 3500 3150
Wire Wire Line
3950 3050 4000 3050
Wire Wire Line
3950 3150 4100 3150
$Comp
L device:R R28
U 1 1 5E7B38B4
P 5400 3300
F 0 "R28" V 5500 3300 50 0000 C CNN
F 1 "127 0.1%" H 5550 3600 50 0000 C CNN
F 2 "" V 5330 3300 50 0001 C CNN
F 3 "" H 5400 3300 50 0001 C CNN
1 5400 3300
P 5500 3350
F 0 "R28" V 5600 3350 50 0000 C CNN
F 1 "127 0.1%" H 5650 3650 50 0000 C CNN
F 2 "" V 5430 3350 50 0001 C CNN
F 3 "" H 5500 3350 50 0001 C CNN
1 5500 3350
-1 0 0 1
$EndComp
$Comp
L device:R R29
U 1 1 5E7B4812
P 5600 3400
F 0 "R29" V 5700 3400 50 0000 C CNN
F 1 "127 0.1%" H 5950 3700 50 0000 C CNN
F 2 "" V 5530 3400 50 0001 C CNN
F 3 "" H 5600 3400 50 0001 C CNN
1 5600 3400
P 5700 3450
F 0 "R29" V 5800 3450 50 0000 C CNN
F 1 "127 0.1%" H 6050 3750 50 0000 C CNN
F 2 "" V 5630 3450 50 0001 C CNN
F 3 "" H 5700 3450 50 0001 C CNN
1 5700 3450
-1 0 0 1
$EndComp
Wire Wire Line
5600 3250 5600 3050
Wire Wire Line
5600 3050 5400 3050
Wire Wire Line
5600 3550 4000 3550
Wire Wire Line
4000 3550 4000 3050
Connection ~ 4000 3050
Wire Wire Line
4000 3050 4150 3050
Wire Wire Line
5400 3450 4100 3450
Wire Wire Line
4100 3450 4100 3150
Connection ~ 4100 3150
Wire Wire Line
4100 3150 4150 3150
$Comp
L device:R R15
U 1 1 5E7B5814
@@ -170,7 +148,7 @@ Text Label 3500 2850 2 50 ~ 0
5V0_P
Wire Wire Line
3500 2850 3700 2850
Text Notes 3750 3750 0 50 ~ 0
Text Notes 3750 3800 0 50 ~ 0
+2 dB = 1.258V/V\n127/100 ohms gives 1.270 V/V
Text HLabel 4300 4300 0 50 Input ~ 0
1V8
@@ -301,9 +279,6 @@ F 3 "" H 6050 3050 50 0001 C CNN
1 6050 3050
0 1 1 0
$EndComp
Wire Wire Line
5900 3050 5600 3050
Connection ~ 5600 3050
$Comp
L device:R R33
U 1 1 5E7C7E00
@@ -316,10 +291,39 @@ F 3 "" H 6050 3150 50 0001 C CNN
0 1 1 0
$EndComp
Wire Wire Line
5400 3150 5900 3150
Connection ~ 5400 3150
5400 3150 5700 3150
Wire Wire Line
6200 3050 6800 3050
Wire Wire Line
6800 3150 6200 3150
Wire Wire Line
3950 3050 4000 3050
Wire Wire Line
3950 3150 4100 3150
Wire Wire Line
5400 3050 5500 3050
Connection ~ 4000 3050
Wire Wire Line
4000 3050 4150 3050
Connection ~ 4100 3150
Wire Wire Line
4100 3150 4150 3150
Wire Wire Line
4100 3500 5500 3500
Wire Wire Line
4100 3150 4100 3500
Wire Wire Line
5500 3200 5500 3050
Connection ~ 5500 3050
Wire Wire Line
5500 3050 5900 3050
Wire Wire Line
4000 3600 5700 3600
Wire Wire Line
4000 3050 4000 3600
Wire Wire Line
5700 3300 5700 3150
Connection ~ 5700 3150
Wire Wire Line
5700 3150 5900 3150
$EndSCHEMATC
2 changes: 1 addition & 1 deletion boards/entry-afe-characterization/dac.sch
View file
Original file line number Diff line number Diff line change
@@ -6,7 +6,7 @@ $Descr A4 11693 8268
encoding utf-8
Sheet 8 8
Title "Entry-Level Oscilloscope AFE Characterization Platform"
Date "2020-03-26"
Date "2020-03-27"
Rev "0.1"
Comp "Antikernel Labs"
Comment1 ""
61 changes: 32 additions & 29 deletions boards/entry-afe-characterization/entry-afe-characterization.sch
View file
Original file line number Diff line number Diff line change
@@ -6,32 +6,14 @@ $Descr A4 11693 8268
encoding utf-8
Sheet 1 8
Title "Entry-Level Oscilloscope AFE Characterization Platform"
Date "2020-03-26"
Date "2020-03-27"
Rev "0.1"
Comp "Antikernel Labs"
Comment1 "Top Level"
Comment2 "Andrew D. Zonenberg"
Comment3 ""
Comment4 ""
$EndDescr
$Sheet
S 1150 3550 1000 1750
U 5E704852
F0 "Power Supply" 50
F1 "psu.sch" 50
F2 "0V5_REF" O R 2150 4300 50
F3 "N0V5_REF" O R 2150 4500 50
F4 "5V0_P" O R 2150 3800 50
F5 "5V0_N" O R 2150 4600 50
F6 "12V0" O R 2150 3600 50
F7 "GND" O R 2150 4400 50
F8 "6V0_P" O R 2150 3700 50
F9 "6V0_N" O R 2150 4700 50
F10 "3V3" O R 2150 3900 50
F11 "2V5_REF" O R 2150 4000 50
F12 "1V8" O R 2150 4100 50
F13 "0V9_REF" O R 2150 4200 50
$EndSheet
Text Notes 6300 4350 0 50 ~ 0
SYSTEM GAIN CALCULATIONS\n\nHMCAD1520 wants 2V full scale\nIn 12-bit mode: 488 µV/LSB @ 0 dB gain\nIn 8-bit mode: 7.8 mV/LSB @ 0 dB gain\n\nMIN GAIN:\n10V input range, -13 dB system gain (0.2V/V)\n-9 dB gain on VGA\n12 bit mode: 2.4 mV/LSB\n8 bit mode: 39 mV/LSB\n\nMAX GAIN:\n159 mV input range, +22 dB system gain (12.59V/V)\n+26 dB gain on VGA\n12 bit mode: 38.7 µV/LSB\n8 bit mode: 619.5 µV/LSB
$Sheet
@@ -107,11 +89,11 @@ Text Label 2150 6750 0 50 ~ 0
VIN_OFFSET
Text Label 2150 3800 0 50 ~ 0
5V0_P
Text Label 2150 4600 0 50 ~ 0
Text Label 2150 4700 0 50 ~ 0
5V0_N
Text Label 2150 4400 0 50 ~ 0
Text Label 2150 4500 0 50 ~ 0
GND
Text Label 2150 4000 0 50 ~ 0
Text Label 2150 4100 0 50 ~ 0
2V5_REF
Text Notes 1150 2700 0 50 ~ 0
VIN_FILTERED\n± 2.5V range\nCumulative gain = 0.5 V/V (-6 dB)
@@ -150,9 +132,9 @@ Text Label 2850 1150 2 50 ~ 0
6V0_N
Text Label 2150 3700 0 50 ~ 0
6V0_P
Text Label 2150 4700 0 50 ~ 0
Text Label 2150 4800 0 50 ~ 0
6V0_N
Text Label 2150 4200 0 50 ~ 0
Text Label 2150 4300 0 50 ~ 0
0V9_REF
Text Label 1150 850 2 50 ~ 0
5V0_P
@@ -162,7 +144,7 @@ Text Label 1150 750 2 50 ~ 0
12V0
Text Label 2150 3600 0 50 ~ 0
12V0
Text Label 2150 4300 0 50 ~ 0
Text Label 2150 4400 0 50 ~ 0
0V5_REF
Text Label 1150 1150 2 50 ~ 0
N0V5_REF
@@ -173,7 +155,7 @@ GAIN2_PWRUP
Text Label 4150 6050 2 50 ~ 0
GAIN2_PWRUP
Text Label 4750 1050 2 50 ~ 0
5V0_P
5V0_P_2
Text Label 4750 1250 2 50 ~ 0
GND
$Sheet
@@ -222,7 +204,7 @@ Text Label 6600 1150 2 50 ~ 0
1V8
Text Label 6600 1450 2 50 ~ 0
5V0_N
Text Label 2150 4100 0 50 ~ 0
Text Label 2150 4200 0 50 ~ 0
1V8
$Sheet
S 1150 5600 1000 1750
@@ -280,8 +262,29 @@ Text Label 1150 1450 2 50 ~ 0
INPUT_RST
Text Label 5750 6150 0 50 ~ 0
INPUT_RST
Text Label 2150 3900 0 50 ~ 0
Text Label 2150 4000 0 50 ~ 0
3V3
Text Label 2150 4500 0 50 ~ 0
Text Label 2150 4600 0 50 ~ 0
N0V5_REF
$Sheet
S 1150 3550 1000 1750
U 5E704852
F0 "Power Supply" 50
F1 "psu.sch" 50
F2 "0V5_REF" O R 2150 4400 50
F3 "N0V5_REF" O R 2150 4600 50
F4 "5V0_P" O R 2150 3800 50
F5 "5V0_N" O R 2150 4700 50
F6 "12V0" O R 2150 3600 50
F7 "GND" O R 2150 4500 50
F8 "6V0_P" O R 2150 3700 50
F9 "6V0_N" O R 2150 4800 50
F10 "3V3" O R 2150 4000 50
F11 "2V5_REF" O R 2150 4100 50
F12 "1V8" O R 2150 4200 50
F13 "0V9_REF" O R 2150 4300 50
F14 "5V0_P_2" O R 2150 3900 50
$EndSheet
Text Label 2150 3900 0 50 ~ 0
5V0_P_2
$EndSCHEMATC
2 changes: 1 addition & 1 deletion boards/entry-afe-characterization/gainstage.sch
View file
Original file line number Diff line number Diff line change
@@ -6,7 +6,7 @@ $Descr A4 11693 8268
encoding utf-8
Sheet 7 8
Title "Entry-Level Oscilloscope AFE Characterization Platform"
Date "2020-03-26"
Date "2020-03-27"
Rev "0.1"
Comp "Antikernel Labs"
Comment1 ""
4 changes: 2 additions & 2 deletions boards/entry-afe-characterization/input.sch
View file
Original file line number Diff line number Diff line change
@@ -4,9 +4,9 @@ EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 8
Sheet 3 8
Title "Entry-Level Oscilloscope AFE Characterization Platform"
Date "2020-03-26"
Date "2020-03-27"
Rev "0.1"
Comp "Antikernel Labs"
Comment1 ""
10 changes: 5 additions & 5 deletions boards/entry-afe-characterization/mcu.sch
View file
Original file line number Diff line number Diff line change
@@ -4,9 +4,9 @@ EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 8
Sheet 2 8
Title "Entry-Level Oscilloscope AFE Characterization Platform"
Date "2020-03-26"
Date "2020-03-27"
Rev "0.1"
Comp "Antikernel Labs"
Comment1 ""
@@ -139,12 +139,12 @@ Text Label 2900 3500 2 50 ~ 0
GND
Wire Wire Line
2900 3500 3050 3500
Text HLabel 5300 3800 0 50 Output ~ 0
Text HLabel 6850 3100 0 50 Output ~ 0
GAIN_PWRUP
Text HLabel 5300 3400 0 50 Output ~ 0
GAIN2_PWRUP
Text Notes 5400 4950 0 50 ~ 0
ADL5205 has 2.4V Vih\nso 3.3V inputs are OK\n\nSPI_SDIO and OVERVOLTAGE_N must be 5V tolerant
ADL5205 has 2.4V Vih\nso 3.3V inputs are OK\n\nSPI_SDIO, RELAY_EN, and OVERVOLTAGE_N must be 5V tolerant
Text HLabel 5300 4300 0 50 Output ~ 0
VGA_PERF_MODE
Text HLabel 5300 3000 0 50 Output ~ 0
@@ -207,7 +207,7 @@ F 3 "" H 2450 2900 50 0001 C CNN
1 0 0 -1
$EndComp
Connection ~ 2450 2750
Text HLabel 6850 3100 0 50 Output ~ 0
Text HLabel 5300 3800 0 50 Output ~ 0
RELAY_EN
Text HLabel 6850 3500 0 50 Input ~ 0
OVERVOLTAGE_N
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