MC34119DTBR2 Datasheet, PDF (8/12 Pages) Freescale Semiconductor, Inc – LOW POWER AUDIO AMPLIFIER

Figure 16. Small Signal Response
MC34119
Figure 17. Large Signal Response
20 µs/DIV
20 µs/DIV
Figure 18. VCC–VOH @ VO1, VO2 versus Load Current
1.5
1.4
1.3
1.2
1.1
2.0 ≤ VCC ≤ 16 V
1.0
0.9
TA = 25°C
0.8
0
40
80
120
160
200
ILOAD, LOAD CURRENT (mA)
Figure 19. VOL @ VO1, VO2 versus Load Current
1.4
1.2
TA = 25°C
1.0
VCC = 2.0 V
0.8
0.6
VCC = 3.0 V
0.4
0.2
VCC ≥ 6.0 V
0
0
40
80
120
160
200
ILOAD, LOAD CURRENT (mA)
Figure 20. Input Characteristics @ CD (Pin 1)
200
160
120
80
40
Valid for VCD ≤ VCC
0
0
4.0
8.0
12
16
VCD, CHIP DISABLE VOLTAGE (V)
Figure 21. Audio Amplifier with High Input Impedance
75 k
6 VCC
0.1 _{3.0 k 4}
3
0.1
Input
5.0 µF2
–
#1
+
4.0 k _{4.0 k}
50 k
–
125 k
+#2
50 k
MC34119
Bias
Circuit
Differential Gain = 34 dB
Frequency Response: See Figure 3
[ Input Impedance 125 kΩ
[ PSRR 50 dB
7 Gnd
5
Speaker
8
1 _Disable
8
MOTOROLA ANALOG IC DEVICE DATA