CS4121 Datasheet, PDF (4/8 Pages) Cherry Semiconductor Corporation – Low Voltage Precision Air-Core Low Voltage Precision Air-Core

Typical Performance Characteristics: continued
Figure 3: Output Angle in Polar Form
7V
(V_SINE+) - (V_SINE-)
Q Angle
Ð7V
+7V
(V_COS+) - (V_COS-)
[ ] ^{Q = ARCTAN}
V_SIN+ Ð V_SIN-
V_COS+ Ð V_COS-
-7V
Figure 4: Nominal Output Deviation
1.50
1.25
1.00
0.75
0.50
0.25
0.00
-0.25
-0.50
-0.75
-1.00
-1.25
-1.50
0
45
90
135
180
225
270
315
Theoretical Angle (°)
Nominal Angle vs. Ideal Angle (After calibrating at 180¡)
Note: Temperature, voltage and nonlinearity not included.
45
40
35
30
25
20
Ideal Degrees
15
Nominal Degrees
10
5
0
1
5
9
13
17
21
25
29
33
37
41
45
Nominal Angle (Degrees)
Table 1: Function Generator Output Nominal Angle vs. Ideal Angle (After calibrating at 270¡)
Ideal Q Nominal
Degrees Q Degrees
Ideal Q Nominal
Degrees Q Degrees
Ideal Q Nominal
Degrees Q Degrees
Ideal Q Nominal
Degrees Q Degrees
Ideal Q Nominal
Degrees Q Degrees
0
0
1
1.09
2
2.19
3
3.29
4
4.38
5
5.47
6
6.56
7
7.64
8
8.72
9
9.78
10
10.84
11
11.90
12
12.94
13
13.97
14
14.99
15
16.00
16
17.00
17
17.98
18
18.96
19
19.92
20
20.86
21
21.79
22
22.71
23
23.61
24
24.50
25
25.37
26
26.23
27
27.07
28
27.79
29
28.73
30
29.56
31
30.39
32
31.24
33
32.12
34
33.04
75
35
34.00
80
36
35.00
85
37
36.04
90
38
37.11
95
39
38.21
100
40
39.32
105
41
40.45
110
42
41.59
115
43
42.73
120
44
43.88
125
45
45.00
130
50
50.68
135
55
56.00
140
60
60.44
145
65
64.63
150
70
69.14
155
Note: Temperature, voltage and nonlinearity not included.
4
74.00
79.16
84.53
90.00
95.47
100.84
106.00
110.86
115.37
119.56
124.00
129.32
135.00
140.68
146.00
150.44
154.63
160 159.14
165 164.00
170 169.16
175 174.33
180 180.00
185 185.47
190 190.84
195 196.00
200 200.86
205 205.37
210 209.56
215 214.00
220 219.32
225 225.00
230 230.58
235 236.00
240 240.44
Ideal Q Nominal
Degrees Q Degrees
245 244.63
250 249.14
255 254.00
260 259.16
265 264.53
270 270.00
275 275.47
280 280.84
285 286.00
290 290.86
295 295.37
300 299.21
305 303.02