CA3020 View Datasheet(PDF) - Intersil
Part Name
Description
Manufacturer
CA3020 Datasheet PDF : 9 Pages
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CA3020, CA3020A
+VCC1 +VCC2
R
5µF
1kHz
SIGNAL e1
e2
SOURCE
1
S
2
1
2
5µF
510kΩ 8 9 4 7
10
CA3020
3
CA3020A
31
0.01µF
5kΩ
2 5 6 12
1µF
PROCEDURES:
Input Resistance Terminal 10 to Ground (RIN10).
1. Apply desired value of VCC1 and VCC2 and set S in
Position 1.
2. Adjust 1kHz input for desired signal level of measurement
3. Adjust R for e2 = e1/2.
4. Record resulting value of R as RIN10.
Input Resistance Terminal 3 to Ground (RIN3).
1. Apply desired value of VCC1 and VCC2 and set S in
Position 2.
2. Adjust 1kHz input for desired signal level of measurement
3. Adjust R for e2 = e1/2.
4. Record resulting value of R as RIN3.
FIGURE 10. MEASUREMENT OF INPUT RESISTANCE
+VCC1
+VCC2
DISTORTION
ANALYZER
S1
3kΩ 5µF
1kHz
SIGNAL eIN 600Ω
SOURCE
5kΩ
0.01
µF
510 8 9
kΩ
4
10
CA3020
31
CA3020A
5µF
3
7
2 5 6 12
5µF
T (NOTE)
S2
S3
RL
BAND-PASS
FILTER:
50Hz
TO
15kHz
eOUT
RMS
VOLTMETER
NOTE: Push-pull output transformer; load resistance (RL) should be selected to provide indicated collector-to-collector load impedance
(RCC).
PROCEDURES:
Signal-to-Noise Ratio
Total Harmonic Distortion
1. Close S1 and S3; open S2.
2. Apply desired values of VCC1 and VCC2 .
3. Adjust eIN for an amplifier output of 150mW and record re-
sulting value of EOUT in dB as eOUT1 (reference value).
4. Open S1 and record resulting value of eOUT in dB as eOUT2
5. Signal-to-Noise Ratio (S ⁄ N) = 20log10 ee----OO-----UU-----TT----12-- .
1. Close S1 and S2; open S3.
2. Apply desired values of VCC1 and VCC2 .
3. Adjust eIN for desired level amplifier output power.
4. Record Total Harmonic Distortion (THD) in %.
FIGURE 11. MEASUREMENT OF SIGNAL-TO-NOISE RATIO AND TOTAL HARMONIC DISTORTION
8
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