AT-cut Characteristic

AT-cut Characteristic
Frequency Deviation Versus Temperature Curves
-5
-3 -1
0 +2 + 4
+70 ppm
+5
+60 ppm
+6
+50 ppm
+7
AT- Cut Uncountured
+18
+40 ppm
+8
+17
+30 ppm
+9
+16
+20 ppm
+10
+15
+10 ppm
+11
+14
+12
0
+13
+13
-10 ppm
+12
+14
-20 ppm
+11
-30 ppm
+10
+15
+16
+ 9
-40 ppm
+17
+ 8
-50 ppm
+18
Fundamental: - (35° 12.5° + Ø)
+ 7
3rd Overtone: -(35° 20° + Ø)
-60 ppm
+ 6
5th Overtone and Above: -(35° 21° + Ø)
+ 5
-70 ppm
+2 0 -2 -4
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
-0
10
Temperature
The pulse of progress
20
(°C)
30
40
50
60
70
80
90
100
110
120
130
140
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