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參數資料
| 型號： | MC44302AP |
| 廠商： | MOTOROLA INC |
| 元件分類： | 消費家電 |
| 英文描述： | ADVANCED MULTI-STANDARD VIDEO/SOUND IF |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP28 |
| 封裝： | PLASTIC, DIP-28 |
| 文件頁數： | 6/28頁 |
| 文件大小： | 612K |
| 代理商： | MC44302AP |
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MC44302A
6
MOTOROLA ANALOG IC DEVICE DATA
10
7.0
1.0
20
0
0
S
EXTERNAL TANK CAPACITANCE, C25 (pF)
I
SOUND AFT FILTER VOLTAGE, PIN 7 (V)
R
VIDEO MODULATION FREQUENCY (MHz)
Figure 7. Video Output Frequency Response
–4.0
–8.0
–12
–16
–20
16
12
8.0
4.0
0
6.0
5.0
4.0
4.0
8.0
12
16
2.0
3.0
4.0
50
60 70
100
VCC = 5.0 V
TA = 25
°
C
Parasitic layout and
coil capacitance
must be considered.
VCC =
5.0 V
R28 = 10 k
Pin 7 = 1.5 V to 3.8 V
Vin = 500
μ
Vrms into Pin 2
Mod =
±
25 kHz Dev at 1.0 kHz
TA = 25
°
C
L3 =
10
μ
H
15
20
30
40
L3 =
15
μ
H
80
Negative Video
Output Pin 5
VCC = 5.0 V
fC = 45.75 MHz
TA = 25
°
C
0.1
R
INTERCARRIER MODULATION FREQUENCY, PIN 2 (kHz)
R
INTERCARRIER INPUT VOLTAGE, PIN 2 (mVrms)
–10
–20
–30
–40
–50
–60
–70
–80
1.0
10
100
1000
C4 =
3.3 nF
C4 =
1.0 nF
C4 =
0 pF
C4 =
100 pF
L3 =
22
μ
H
6.5
5.5
4.5
3.5
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
Output
Level
S
N
N
VCC = 5.0 V
PAL 1 Mode Selected
Vin = 10 mVrms into Pin 2
fC = 4.5 MHz
Dev =
±
25 kHz
RL = 10 M
CL = 10 pF
TA = 25
°
C
Figure 8. Vectorscope Display of
75% Saturated NTSC Color Bars
Figure 9. FM Sound AFT Filter Voltage
versus Internal Tuning Capacitance
Figure 10. FM Sound Intercarrier Self–Tuning
Frequency Range versus External Tank Capacitance
Figure 11. FM Sound Detector Relative Output, and
Signal to Noise Ratio versus Intercarrier Input Voltage
0
Figure 12. FM Sound Detector Frequency Response
4.0
Picture taken
without Figure 27
correction circuit
0.1
1.0
10
100
0
–4.0
–8.0
–12
–16
–20
–24
–28
VCC = 5.0 V
fC = 45.75 MHz
TA = 25
°
C
Positive Video
Output Pin 6
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