MC44302A データシートの表示（PDF） - Motorola => Freescale
部品番号
コンポーネント説明
メーカー
MC44302A Datasheet PDF : 28 Pages
| |||
MC44302A
Figure 7. Video Output Frequency Response
0
–4.0
Negative Video
–8.0
Output Pin 5
–12
VCC = 5.0 V
fC = 45.75 MHz
TA = 25°C
Positive Video
Output Pin 6
–16
–20
0
4.0
8.0
12
16
VIDEO MODULATION FREQUENCY (MHz)
Figure 8. Vectorscope Display of
75% Saturated NTSC Color Bars
VCC = 5.0 V
fC = 45.75 MHz
TA = 25°C
Picture taken
without Figure 27
correction circuit
Figure 9. FM Sound AFT Filter Voltage
versus Internal Tuning Capacitance
20
VCC = 5.0 V
TA = 25°C
16
12
8.0
4.0
Parasitic layout and
coil capacitance
must be considered.
0
1.0
2.0
3.0
4.0
SOUND AFT FILTER VOLTAGE, PIN 7 (V)
Figure 10. FM Sound Intercarrier Self–Tuning
Frequency Range versus External Tank Capacitance
7.0
6.5
6.0
5.5
5.0
VCC =
5.0 V
R28 = 10 k
L3 =
22 µH
4.5 Pin 7 = 1.5 V to 3.8 V
Vin = 500 µVrms into Pin 2
4.0 Mod = ±25 kHz Dev at 1.0 kHz
TA = 25°C
3.5
10
15 20
30
L3 =
15 µH
L3 =
10 µH
40 50 60 70 80 100
EXTERNAL TANK CAPACITANCE, C25 (pF)
Figure 11. FM Sound Detector Relative Output, and
Signal to Noise Ratio versus Intercarrier Input Voltage
0
–10 Output
Level
–20
–30
VCC = 5.0 V
fC = 5.5 MHz
Mod = ± 50 kHz Dev at 1.0 kHz
0 dB Output Level = 0.45 Vrms
TA = 25°C
–40
) –50
SN
–60 N
–70
–80
0.1
1.0
10
100
INTERCARRIER INPUT VOLTAGE, PIN 2 (mVrms)
Figure 12. FM Sound Detector Frequency Response
4.0
0
C4 =
0 pF
–4.0
C4 =
3.3 nF
–8.0
C4 =
–12
VCC = 5.0 V
PAL 1 Mode Selected
1.0 nF
–16
Vin = 10 mVrms into Pin 2
fC = 4.5 MHz
–20
Dev = ±25 kHz
RL = 10 MΩ
–24 CL = 10 pF
TA = 25°C
–28
C4 =
100 pF
0.1
1.0
10
100
1000
INTERCARRIER MODULATION FREQUENCY, PIN 2 (kHz)
6
MOTOROLA ANALOG IC DEVICE DATA
Share Link: 