CA3256 Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
Fabricante
CA3256 Datasheet PDF : 11 Pages
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CA3256
VIN = 200mVP-P, AT LOW FREQUENCY 0dB REF. EQUAL
1.13 x GAIN, TA = 25oC
0
-2
-4
-6
-8
8
1kΩ
7pF
C COMP
RF
1kΩ
VIN
TG
+
9
OUTPUT
AMPLIFIER
220µF
VOUT
75Ω
-10
0.01
0.1
1
10
100
FREQUENCY (MHz)
FIGURE 4A. CLOSED LOOP RESPONSE WITH
COMPENSATION CAPACITOR, CCOMP , AND RF,
SEE FIGURE 4B
FIGURE 4B. TEST CIRCUIT FOR FIGURE 4A
31
VOUT = 200mVP-P, TA = 25oC
29
27
8
NO FEEDBACK
25
VOUT
9
+
23
V IN
220µF
150Ω
OUTPUT
TG
AMPLIFIER
21
19
0.01
0.1
1
10
100
FREQUENCY (MHz)
FIGURE 4C. OPEN LOOP RESPONSE WITH NO FEEDBACK,
SEE FIGURE 4D
FIGURE 4D. TEST CIRCUIT FOR FIGURE 4C
FIGURE 4. FREQUENCY RESPONSE OF AC COUPLED CIRCUIT OF FIGURE 3
8-8
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