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MB3788
11
(Continued)
VCC = 6 V
V
FB = 1.6 V
T
A = +25°C
100
80
60
40
20
0
0 5K 10K 50K 100K 500K 1M
1.9V
1.3V
Duty
Dtr (%)
Input oscillating frequency (Hz)
40
20
0
-20
-40
1K 10K 100K 1M 5M 10M
TA = +25°C
180
90
0
-90
-180
Input waveform
Gain
(dB)
Phase
φ (deg)
1000
800
600
400
200
0
-20 020 406080 100
Power
dissipation
P
D (mW)
Ambient temperature T
A (°C)
7. Duty - input oscillating frequency characteristic
8.Gain - frequency characteristic and phase - frequency
characteristic
f (Hz)
9. Power dissipation - ambient temperature characteristic
Circuit for measuring gain - frequency characteristic and
phase - frequency characteristic
2.5 V
-
+
out
2.5 V
in
+
-
10 µF
240 kΩ
4.7 kΩ
4.7 kΩ
V
CC = 6 V
4.7 kΩ4.7 kΩ
Error amplifier