
MC34118
MOTOROLA
13
Figure 18. Supply Current versus Supply Voltage
Figure 19. VB Output Characteristics
Figure 20. VB Power Supply Rejection versus
Frequency and VB Capacitor
Figure 21. Power Supply Rejection of the
Microphone and Hybrid Amplifiers
Figure 22. Typical Output Swing versus VCC
0
4.0
3.0
2.0
1.0
2.0
3.0
4.0
VCC (VOLTS)
(mA
)
5.0
6.0
0
5.0
6.0
2.0 ≤ CD ≤ VCC
CD ≤ 0.8 V
I CC
0
2.0
1.5
1.0
0.5
1.0
1.5
2.0
IB LOAD CURRENT (mA)
(V
OL
TS
)
2.5
3.0
0
V B
300
60
40
20
1.0K
FREQUENCY (Hz)
80
0
2.0K
3.0K
PSRR
(dB)
220 F
1000 F
500 F
100 F
CVB =50 F
300
40
30
20
1.0K
FREQUENCY (Hz)
50
60
10
3.0K
PSRR
(dB)
HTO--, CVB = 1000 F
MCO, CVB = 1000 F
MCO, CVB = 220 F
HTO--, CVB = 220 F
MIC AMP GAIN = 31 dB
HYBRID AMP GAIN = 14 dB
3.0
4.0
3.0
2.0
1.0
3.5
4.0
4.5
5.0
VCC (VOLTS)
5.0
6.0
0
5.5
6.0
P-
-P
OUTPUT
SWING
(VOL
TS)
6.5
MCO
HTO--, +
TXO, RXO
FO
TXO
RXO
TYPICAL @ 25°C
SEETEXT
VCC =6.0 V
VCC =3.5 V