MC12002P Просмотр технического описания (PDF) - LANSDALE Semiconductor Inc.
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MC12002P Datasheet PDF : 9 Pages
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ML12002
LANSDALE Semiconductor, Inc.
Figure 5. Carrier Feedthrough versus Frequency
(Test 1)
5.0
4.0
3.0
2.0
1.0
0.0
0.1
1.0
10.0
fc, CARRIER FREQUENCY (MHz)
100.0
Figure 6. Carrier Feedthrough versus Frequency
(Test 2)
5.0
4.0
3.0
2.0
1.0
0.0
0.1
1.0
10.0
fc, CARRIER FREQUENCY (MHz)
100.0
Figure 7. Carrier Suppression Test Circuit
Hewlett Packard 3406A
Sampling Voltmeter
0.1 µf 2
12
Hewlett
Packard
Local Oscillator
50
1.0 µf 3
Inputs
Outputs 11
TEE 11536A
Hewlett Packard
651A and 3300B
100 kHz to 400 MHz
0.1 µf
1.0µf
8
Mixer
9 Inputs
Reg.
Bypass
VEE
Null
Adjust
1 10 7 5 6
VCC
14
@ 30 mV RMS.
1.0 µf
Hewlett Packard
651A 10 kHz
@ 150 mV R.M.S.
1.0 µf
50
– – 5.0 V
+
– 5.0 V
Notes:
Test 1 – Adjust potentiometer for carrier null @ fc = 100 kHz
Test 2 – Connect pins 5 and 6 to –5.0 volts
Test 3 – Adjust potentiometer for carrier null @ 25° C
50
50
X 50
Atten.
50
50
All input and output
cables to the scope are
equal lengths of 50-ohm
coaxial cable.
Figure 8. Carrier Suppression versus Frequency
(Test 1)
+40
+30
+20
+10
0
–10
–20
–30
–40
–50
–60
0.1
1.0
10.0
100.0
1.0 K
fc, CARRIER FREQUENCY (MHz)
Figure 9. Carrier Suppression versus Frequency
(Test 2)
+40
+30
+20
+10
0
–10
–20
–30
–40
–50
–60
0.1
1.0
10.0
100.0
1.0 K
fc, CARRIER FREQUENCY (MHz)
Page 5 of 9
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