Schematics

Report No.: I20W00023-WWAN_Rev1
Chongqing Academy of Information and Communication Technology
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Page 525 of 585
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5.6.3 CAT-M Band Frequency Stability over Temperature Variation Results
Band
Reference
channel
frequency
(MHz)
Offset
Temperature[℃]
-30
-20
-10
0
10
20
30
40
50
2
1880
Hz
9.15
7.06
-8.09
13.27
-16.05
-7.07
12.14
-10.92
7.82
ppm
0.005
0.004
-0.004
0.007
-0.008
-0.004
0.006
-0.006
0.004
4
1732.5
Hz
13.39
-20.07
10.09
-12.37
9.28
7.52
-16.67
7.89
11.52
ppm
0.008
-0.011
0.006
-0.007
0.005
0.004
-0.010
0.004
0.007
12
707.5
Hz
2.71
3.48
0.34
0.59
1.94
0.09
0.59
1.85
0.21
ppm
0.0038
0.0048
0.0005
0.0008
0.0027
0.0001
0.0008
0.0026
0.0003
13
782
Hz
2.27
-0.36
0.02
3.04
-0.70
-0.07
2.00
0.12
-0.2
ppm
0.0024
-0.0005
0.00003
0.0039
-0.0009
-0.0001
0.0026
0.0001
-0.0003
26
831.5
Hz
6.96
17.89
7.39
-5.27
15.34
9.22
-11.05
-6.97
15.09
ppm
0.008
0.021
0.009
-0.006
0.018
0.011
-0.013
-0.008
0.018