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Figure 13. AM Sound IF Frequency Response
4.0
0
–4.0
–8.0
–12
V CC = 5.0 V
SECAM Mode Selected
–16
V in = 60 mVrms into Pin 23
Mod = 30% AM, 1.0 kHz
–20
R L = 10 MΩ
C L = 10 pF
–24
T A = 25 C
–28
2.0
Figure 15. AM Sound Detector Linearity
3.0
2.5
2.0
1.5
1.0
0.5
0
20
INTERCARRIER INPUT VOLTAGE, PIN 23 (mVrms)
Figure 17. Variable Audio Output Gain
20
V CC = 5.0 V
Audio 2 Selected, Pin 3 = 22 k to Gnd
0
V in = 200 mVrms into Pin 3
f = 1.0 kHz
T A = 25 C
–20
–40
–60
–80
0
MOTOROLA ANALOG IC DEVICE DATA
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Elcodis.com
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5.0
10
20
50
INTERCARRIER FREQUENCY, PIN 23 (MHz)
V CC = 5.0 V
NTSC Mode Selected
f C = 4.5 MHz
T A = 25 C
40
60
80
100
120
versus Volume Control Voltage
1.0
2.0
3.0
VOLUME CONTROL VOLTAGE (V)
MC44302A
Figure 14. AM Sound Detector Frequency Response
4.0
0
–4.0
–8.0
–12
V CC = 5.0 V
SECAM Mode Selected
–16
V in = 60 mVrms into Pin 23
Mod = 30% AM
–20
R L = 10 MΩ
C L = 10 pF
–24
T A = 25 C
–28
100
200
0.1
INTERCARRIER MODULATION FREQUENCY, PIN 23 (kHz)
Figure 16. Variable Audio Output Frequency Response
2.0
0
–2.0
–4.0
–6.0
V CC = 5.0 V
–8.0
V in = 200 mVrms into Pin 3
Pin 3 = 22 k to Gnd
–10
R L = 10 MΩ
C L = 10 pF
–12
T A = 25 C
–14
140
160
0.1
Figure 18. Supply Current Versus Supply Voltage
160
Pin 25 supply current measured in Figure 28 circuit
with 87.5% modulated grayscale in NTSC Mode.
120
V in = 1.0 mVrms
f C = 45.75 MHz
T A = 25 C
80
40
0
4.0
5.0
0
1.0
10
1.0
10
100
AUDIO FREQUENCY, PIN 3 (kHz)
Minimum
Operating
Voltage
1.0
2.0
3.0
4.0
V CC , SUPPLY VOLTAGE (V)
100
1000
1000
10000
Range
5.0
6.0
7.0
7
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