From fdc78f0fcad64deaf527479920f654f765dda204 Mon Sep 17 00:00:00 2001 From: "Matthias P. Braendli" Date: Sun, 26 Jan 2020 20:10:56 +0100 Subject: Add doc and santerre schematic --- kicad/gpsdo.sch | 64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 kicad/gpsdo.sch (limited to 'kicad/gpsdo.sch') diff --git a/kicad/gpsdo.sch b/kicad/gpsdo.sch new file mode 100644 index 0000000..ace1c73 --- /dev/null +++ b/kicad/gpsdo.sch @@ -0,0 +1,64 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 4 5 +Title "" +Date "" +Rev "" +Comp "" +Comment1 "" +Comment2 "" +Comment3 "" +Comment4 "" +$EndDescr +$Comp +L 74xx:74LS390 U? +U 1 1 5E2FC3AF +P 3850 2650 +F 0 "U?" H 3850 3017 50 0000 C CNN +F 1 "74HC390" H 3850 2926 50 0000 C CNN +F 2 "" H 3850 2650 50 0001 C CNN +F 3 "http://www.ti.com/lit/gpn/sn74LS390" H 3850 2650 50 0001 C CNN + 1 3850 2650 + 1 0 0 -1 +$EndComp +$Comp +L 4xxx:4046 U? +U 1 1 5E2FC7E9 +P 3850 5550 +F 0 "U?" H 3850 6431 50 0000 C CNN +F 1 "74HC4046" H 3850 6340 50 0000 C CNN +F 2 "" H 3850 5550 50 0001 C CNN +F 3 "https://assets.nexperia.com/documents/data-sheet/HEF4046B.pdf" H 3850 5550 50 0001 C CNN + 1 3850 5550 + 1 0 0 -1 +$EndComp +$Comp +L 74xx:74LS390 U? +U 2 1 5E2FD81E +P 3850 3400 +F 0 "U?" H 3850 3767 50 0000 C CNN +F 1 "74HC390" H 3850 3676 50 0000 C CNN +F 2 "" H 3850 3400 50 0001 C CNN +F 3 "http://www.ti.com/lit/gpn/sn74LS390" H 3850 3400 50 0001 C CNN + 2 3850 3400 + 1 0 0 -1 +$EndComp +$Comp +L 74xx:74LS390 U? +U 3 1 5E2FE851 +P 4700 1150 +F 0 "U?" H 4930 1196 50 0000 L CNN +F 1 "74HC390" H 4930 1105 50 0000 L CNN +F 2 "" H 4700 1150 50 0001 C CNN +F 3 "http://www.ti.com/lit/gpn/sn74LS390" H 4700 1150 50 0001 C CNN + 3 4700 1150 + 1 0 0 -1 +$EndComp +Text HLabel 9450 2650 2 50 Input ~ 0 +10MHz +Text HLabel 9450 2550 2 50 Input ~ 0 +1PPS +$EndSCHEMATC -- cgit v1.2.3