EESchema Schematic File Version 4 EELAYER 26 0 EELAYER END $Descr B 17000 11000 encoding utf-8 Sheet 4 27 Title "rev02_02" Date "15 10 2016" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Text Notes 11600 3700 0 126 ~ 12 Digitizer Text Notes 3200 3700 0 126 ~ 12 Noise generator Text Notes 4200 6410 0 60 ~ 12 Noisy diode Text Notes 6800 3700 0 126 ~ 12 Amplifier Text Notes 3200 7600 0 60 ~ 12 AGND is connected to GND on the board using polygons\n(found no other good way) - not visible in schematics. Text Notes 9400 7650 0 60 ~ 12 This whole sheets circuitry should be as shielded as possible.\nSolid isolated ground plane and internal planes connected\nto the rest of the board at a single point is expected. Text Notes 13690 10220 0 84 ~ 12 Noise source Text Notes 11980 4510 0 60 ~ 12 U3 Text Notes 11790 5790 0 60 ~ 12 MC74HC1G14DTT1G $Comp L Cryptech_Alpha:VCCO_3V3 VCCO_3V3 U 1 1 580240AA P 11400 4100 F 0 "VCCO_3V3" H 11400 4100 20 0000 C CNN F 1 "+VCCO_3V3" H 11400 4030 30 0000 C CNN F 2 "" H 11400 4100 70 0000 C CNN F 3 "" H 11400 4100 70 0000 C CNN 1 11400 4100 1 0 0 -1 $EndComp $Comp L power:GND GND_21 U 1 1 580240A9 P 5050 6550 F 0 "GND_21" H 5050 6550 20 0000 C CNN F 1 "+GND" H 5050 6480 30 0000 C CNN F 2 "" H 5050 6550 70 0000 C CNN F 3 "" H 5050 6550 70 0000 C CNN 1 5050 6550 1 0 0 -1 $EndComp $Comp L Cryptech_Alpha:VCCO_3V3 VCCO_3V3_2 U 1 1 580240A8 P 8800 4100 F 0 "VCCO_3V3_2" H 8800 4100 20 0000 C CNN F 1 "+VCCO_3V3" H 8800 4030 30 0000 C CNN F 2 "" H 8800 4100 70 0000 C CNN F 3 "" H 8800 4100 70 0000 C CNN 1 8800 4100 1 0 0 -1 $EndComp $Comp L Cryptech_Alpha:15V_STABLE 15V_STABLE_2 U 1 1 580240A7 P 5050 4350 F 0 "15V_STABLE_2" H 5050 4350 20 0000 C CNN F 1 "+15V_STABLE" H 5050 4280 30 0000 C CNN F 2 "" H 5050 4350 70 0000 C CNN F 3 "" H 5050 4350 70 0000 C CNN 1 5050 4350 1 0 0 -1 $EndComp Wire Wire Line 11500 4800 11400 4800 Wire Wire Line 11400 4100 11400 4800 Wire Wire Line 11100 4800 11100 5100 Wire Wire Line 11400 4800 11100 4800 Connection ~ 11400 4800 Wire Wire Line 8800 4100 8800 4200 Wire Wire Line 11500 5000 10300 5000 Text Label 10300 5000 0 48 ~ AMPLIFIED Wire Wire Line 10050 5000 9300 5000 Wire Wire Line 8800 4600 8800 4700 Wire Wire Line 8800 4700 8800 5000 Wire Wire Line 8800 5000 8800 5200 Wire Wire Line 9300 5000 8800 5000 Wire Wire Line 8800 5000 8700 5000 Wire Wire Line 8800 4700 8600 4700 Wire Wire Line 9300 4900 9300 5000 Text Label 10050 5000 2 48 ~ 0 AMPLIFIED Connection ~ 8800 5000 Connection ~ 8800 5000 Connection ~ 8800 4700 Connection ~ 9300 5000 Wire Wire Line 13400 4800 12900 4800 Text GLabel 13400 4800 2 48 Output ~ 0 DIGITIZED_NOISE Wire Wire Line 11500 5400 11400 5400 Wire Wire Line 11400 5400 11400 5800 Wire Wire Line 11400 5800 11400 5900 Wire Wire Line 11100 5400 11100 5800 Wire Wire Line 11400 5800 11100 5800 Connection ~ 11400 5800 Wire Wire Line 8800 5600 8800 5700 Wire Wire Line 4850 6000 4450 6000 Text Label 4500 6000 0 48 ~ NOISE_OUT Wire Wire Line 3950 5400 3950 6200 Wire Wire Line 4250 5400 3950 5400 Wire Wire Line 4450 5400 4250 5400 Wire Wire Line 4250 5400 4250 5800 Connection ~ 4250 5400 Text Label 3950 5400 0 48 ~ NOISE_IN Wire Wire Line 5050 5400 4850 5400 Wire Wire Line 5050 5400 5050 5800 Wire Wire Line 5050 5300 5050 5400 Wire Wire Line 5350 5400 5050 5400 Wire Wire Line 6400 5400 5350 5400 Wire Wire Line 5350 5300 5350 5400 Text Label 6400 5400 2 48 ~ 0 RAW_NOISE Connection ~ 5050 5400 Connection ~ 5350 5400 Wire Wire Line 7700 5400 6750 5400 Text Label 6750 5400 0 48 ~ RAW_NOISE Wire Wire Line 8400 4700 8100 4700 Wire Wire Line 8100 5400 8000 5400 Wire Wire Line 8100 5000 8100 5400 Wire Wire Line 8300 5000 8100 5000 Wire Wire Line 8600 5400 8100 5400 Wire Wire Line 8100 4700 8100 5000 Connection ~ 8100 5400 Connection ~ 8100 5000 Wire Wire Line 5050 6200 5050 6550 Wire Wire Line 3950 6500 3950 6550 Wire Wire Line 5050 6550 3950 6550 Connection ~ 5050 6550 Wire Wire Line 5050 4350 5050 4900 Wire Wire Line 3150 4950 3200 4950 Wire Wire Line 3150 5750 3150 4950 $Comp L power:GND GND_22 U 1 1 580240A6 P 3150 5750 F 0 "GND_22" H 3150 5750 20 0000 C CNN F 1 "+GND" H 3150 5680 30 0000 C CNN F 2 "" H 3150 5750 70 0000 C CNN F 3 "" H 3150 5750 70 0000 C CNN 1 3150 5750 1 0 0 -1 $EndComp $Comp L power:GND GND_23 U 1 1 580240A5 P 8800 5700 F 0 "GND_23" H 8800 5700 20 0000 C CNN F 1 "+GND" H 8800 5630 30 0000 C CNN F 2 "" H 8800 5700 70 0000 C CNN F 3 "" H 8800 5700 70 0000 C CNN 1 8800 5700 1 0 0 -1 $EndComp $Comp L power:GND GND_24 U 1 1 580240A4 P 11400 5900 F 0 "GND_24" H 11400 5900 20 0000 C CNN F 1 "+GND" H 11400 5830 30 0000 C CNN F 2 "" H 11400 5900 70 0000 C CNN F 3 "" H 11400 5900 70 0000 C CNN 1 11400 5900 1 0 0 -1 $EndComp $Comp L Cryptech_Alpha:C-EUC0603 C16 U 1 1 580240A3 P 11100 5300 F 0 "C16" H 11500 5260 60 0000 R TNN F 1 "0.1uF" H 11510 5350 60 0000 R TNN F 2 "Cryptech_Alpha_Footprints:C_0402" H 11510 5350 60 0001 C CNN F 3 "" H 11510 5350 60 0000 C CNN 1 11100 5300 -1 0 0 1 $EndComp $Comp L Cryptech_Alpha:WE-SHC S1 U 1 1 580240A2 P 3600 5050 F 0 "S1" H 3300 5500 60 0000 L BNN F 1 "SHIELDING CABINET" H 3600 5450 60 0000 L BNN F 2 "Cryptech_Alpha_Footprints:WE-SHC_36103205_NO_CREAM" H 3600 5450 60 0001 C CNN F 3 "" H 3600 5450 60 0000 C CNN 1 3600 5050 1 0 0 -1 $EndComp $Comp L Cryptech_Alpha:BC818*SMD Q2 U 1 1 580240A1 P 4350 6000 F 0 "Q2" H 4420 5680 60 0000 R TNN F 1 "BC818-40LT1G" H 4420 5780 60 0000 R TNN F 2 "Cryptech_Alpha_Footprints:SOT-23" H 4420 5780 60 0001 C CNN F 3 "" H 4420 5780 60 0000 C CNN 1 4350 6000 -1 0 0 1 $EndComp $Comp L Cryptech_Alpha:BC818*SMD T1 U 1 1 580240A0 P 4950 6000 F 0 "T1" H 5200 6250 60 0000 R TNN F 1 "BC847BLT3G" H 5620 6150 60 0000 R TNN F 2 "Cryptech_Alpha_Footprints:SOT-23" H 5620 6150 60 0001 C CNN F 3 "" H 5620 6150 60 0000 C CNN 1 4950 6000 1 0 0 -1 $EndComp $Comp L Cryptech_Alpha:BC818*SMD T2 U 1 1 5802409F P 8700 5400 F 0 "T2" H 8950 5650 60 0000 R TNN F 1 "BC847BLT3G" H 9370 5550 60 0000 R TNN F 2 "Cryptech_Alpha_Footprints:SOT-23" H 9370 5550 60 0001 C CNN F 3 "" H 9370 5550 60 0000 C CNN 1 8700 5400 1 0 0 -1 $EndComp $Comp L Cryptech_Alpha:TPB1,27 TP1 U 1 1 5802409E P 5350 5200 F 0 "TP1" H 5250 4900 60 0000 L BNN 1 5350 5200 1 0 0 -1 F 2 "Cryptech_Alpha_Footprints:B1,27" H 5250 4900 60 0001 C CNN $EndComp $Comp L Cryptech_Alpha:TPB1,27 TP2 U 1 1 5802409D P 9300 4800 F 0 "TP2" H 9200 4500 60 0000 L BNN 1 9300 4800 1 0 0 -1 F 2 "Cryptech_Alpha_Footprints:B1,27" H 9200 4500 60 0001 C CNN $EndComp $Comp L Cryptech_Alpha:MC74HC1G14DTT1G U3 U 1 1 5802409C P 12200 5000 F 0 "U3" H 11670 4270 60 0000 L BNN 1 12200 5000 1 0 0 -1 F 2 "Cryptech_Alpha_Footprints:SOT-23-5" H 11670 4270 60 0001 C CNN $EndComp $Comp L Cryptech_Alpha:C-EUC0603 C14 U 1 1 5802409B P 3950 6400 F 0 "C14" H 4400 6300 60 0000 R TNN F 1 "0.1uF" H 4410 6420 60 0000 R TNN F 2 "Cryptech_Alpha_Footprints:C_0402" H 4410 6420 60 0001 C CNN F 3 "" H 4410 6420 60 0000 C CNN 1 3950 6400 -1 0 0 1 $EndComp $Comp L Cryptech_Alpha:R-EU_R0402 R10 U 1 1 5802409A P 4650 5400 F 0 "R10" H 4797 5270 60 0000 R TNN F 1 "470" H 4800 5350 60 0000 R TNN F 2 "Cryptech_Alpha_Footprints:R_0402" H 4800 5350 60 0001 C CNN F 3 "" H 4800 5350 60 0000 C CNN 1 4650 5400 -1 0 0 1 $EndComp $Comp L Cryptech_Alpha:R-EU_R0402 R11 U 1 1 58024099 P 5050 5100 F 0 "R11" V 4950 5250 60 0000 L BNN F 1 "1k" V 5060 5240 60 0000 L BNN F 2 "Cryptech_Alpha_Footprints:R_0402" H 5060 5240 60 0001 C CNN F 3 "" H 5060 5240 60 0000 C CNN 1 5050 5100 0 1 1 0 $EndComp $Comp L Cryptech_Alpha:C-EUC0603 C15 U 1 1 58024098 P 7800 5400 F 0 "C15" V 7600 5500 60 0000 R TNN F 1 "0.1uF" V 7510 5500 60 0000 R TNN F 2 "Cryptech_Alpha_Footprints:C_0402" H 7510 5500 60 0001 C CNN F 3 "" H 7510 5500 60 0000 C CNN 1 7800 5400 0 -1 -1 0 $EndComp $Comp L Cryptech_Alpha:R-EU_R0402 R12 U 1 1 58024097 P 8500 5000 F 0 "R12" H 8270 4850 60 0000 L BNN F 1 "10k" H 8470 4850 60 0000 L BNN F 2 "Cryptech_Alpha_Footprints:R_0402" H 8470 4850 60 0001 C CNN F 3 "" H 8470 4850 60 0000 C CNN 1 8500 5000 1 0 0 -1 $EndComp $Comp L Cryptech_Alpha:R-EU_R0402 R13 U 1 1 58024096 P 8800 4400 F 0 "R13" V 8800 4300 60 0000 R TNN F 1 "1k" V 8710 4310 60 0000 R TNN F 2 "Cryptech_Alpha_Footprints:R_0402" H 8710 4310 60 0001 C CNN F 3 "" H 8710 4310 60 0000 C CNN 1 8800 4400 0 -1 -1 0 $EndComp $Comp L Cryptech_Alpha:BAT54 D1 U 1 1 58024095 P 8500 4700 F 0 "D1" H 8410 4775 60 0000 L BNN F 1 "BAT54LT1G" H 8270 4530 60 0000 L BNN F 2 "Cryptech_Alpha_Footprints:SOT-23" H 8270 4530 60 0001 C CNN F 3 "" H 8270 4530 60 0000 C CNN 1 8500 4700 1 0 0 -1 $EndComp NoConn ~ 11500 5200 NoConn ~ 4250 6200 $EndSCHEMATC