summaryrefslogtreecommitdiff
path: root/electronics
diff options
context:
space:
mode:
Diffstat (limited to 'electronics')
-rw-r--r--electronics/rev/1.ms39
-rw-r--r--electronics/rev/229
-rw-r--r--electronics/rev/Makefile4
-rw-r--r--electronics/rev/qer7
4 files changed, 79 insertions, 0 deletions
diff --git a/electronics/rev/1.ms b/electronics/rev/1.ms
new file mode 100644
index 0000000..08daceb
--- /dev/null
+++ b/electronics/rev/1.ms
@@ -0,0 +1,39 @@
+.TL
+com systems
+.AU
+Lucas Standen
+.AI
+.EQ
+delim #@
+.EN
+.EQ
+delim ##
+.EN
+QMC
+.2C
+.NH 1
+work
+.LP
+1)a)i) noise is additional signal, applied to the top of the input. distortion is where the signal itself is modifided.
+1)a)ii)
+.EQ
+{SNR sub db} = 10 log ( {p sub s over p sub n} )
+.EN
+.EQ
+20 = 10 log({ p sub s over {0.1 times 10 sup -3}} )
+.EN
+.EQ
+2 = log({ p sub s over {0.1 times 10 sup -3}} )
+.EN
+.EQ
+10 sup 2 = p sub s over {0.1 times 10 sup -3}
+.EN
+.EQ
+10 sup 2 times {0.1 times 10 sup -3} = p sub s
+.EN
+.EQ
+{p sub s} = 10mW
+.EN
+
+1)c)
+
diff --git a/electronics/rev/2 b/electronics/rev/2
new file mode 100644
index 0000000..703e788
--- /dev/null
+++ b/electronics/rev/2
@@ -0,0 +1,29 @@
+1)a)i)
+Q
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+1
+0
+1)a)ii) no
+1)a)iii) no
+1)a)iv) less chips needed on your board
+1)b)i)
+10
+01
+01
+10
+11
+FORBIDEN
+1)b)ii) there is a forbiden state
+1)b)iii) to store the value of 1 bit
+
+2)a)i) A
+2)a)ii) 0
diff --git a/electronics/rev/Makefile b/electronics/rev/Makefile
new file mode 100644
index 0000000..5ab7e9c
--- /dev/null
+++ b/electronics/rev/Makefile
@@ -0,0 +1,4 @@
+all:
+ groff -e 1.ms -ms -Tps | ps2pdf - > 1.pdf
+open:
+ zathura *.pdf
diff --git a/electronics/rev/qer b/electronics/rev/qer
new file mode 100644
index 0000000..cfb77f9
--- /dev/null
+++ b/electronics/rev/qer
@@ -0,0 +1,7 @@
+It has 2 channels
+It will have an inpedance of 15K when the input pot is 0
+It has a minimum gain of 2.6 ((300x10^3)/(100x10^3)+(15x10^3)) and a max of 20 ((300x10^3)/(15x10^3))
+
+The gain is almost correct, although its minum is slightly too high
+
+A correct value would be to use a pot with a maximum impedance of 135K.