MC1495 Datasheet, PDF (14/20 Pages) ON Semiconductor – LINEAR FOUR-QUADRANT MULTIPLIER

MC1495
- 15 V
- 15V
10 k
R_X
10 k
4
10
+
11
R_Y
10 k
3.9 k
5 671
-2
9+
MC1495
+ ¹⁴
10 k
3
13
8 12
13 k
12 k
5.0 k
Scale ^P3
Factor
Adjust
To Offset
5.0 k
Adjust
(See Figure 13)
3.0 k 3.0 k
3
2
13 k
Output
P_{4 Offset}
Adjust
0.1 µF
7
+
MC1741C
4
6
0.1 µF
-
5
(11 V)
1
20 k
R_L
-10 ≤ V_Z ≤ +0 V
Figure 27. Square Root Circuit
+15 V
V_O
V_O = _{√ 10 |VZ|}
V_Z
E cos ωt
(< 5.0 V_pp)
Offset Y
Adjust
R_Y
R_X
8.2 k 8.2 k
V_CC +15 V
5
4
6
10
11
1
R1
3.0 k
+-1.0 _µF
9
R1
2 3.3 k
8
MC1495
R1
12
14
3.3 k
3 13
6.8 k 1.0 µF
7
C1*
*Select
e_o ≈
E²
20
cos
2
ωt
-15 V
When two equal cosine waves are applied to X and Y, the result
is a wave shape of twice the input frequency. For this example
the input was a 10 kHz signal, output was 20 kHz.
Figure 28. Frequency Doubler
e_Y = E cos ω_mt
e_X = E cos ω_ct
Offset ^Y
Adjust _X
(A)
R_Y
R_X
8.2 k 8.2 k
+15 V
5 6 10 11
4
1 _{3.0 k}
+-1.0 _µF
9
R_L
2 3.3 k
8
MC1495
R_L
12
14
3.3 k
3 13
-
6.8 k 1.0 µF+
7
C1*
*Select _eo
-15 V
(B)
Figure 29. Balanced Modulator
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14