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參數(shù)資料
| 型號(hào)： | MC44302AP |
| 廠商： | MOTOROLA INC |
| 元件分類(lèi)： | 消費(fèi)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(yè)數(shù)： | 24/28頁(yè) |
| 文件大小： | 612K |
| 代理商： | MC44302AP |
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MC44302A
24
MOTOROLA ANALOG IC DEVICE DATA
PIN FUNCTION DESCRIPTION (continued)
Pin No.
Description
Equivalent Internal Circuit
27
VCC
VCC
Audio Output
(Variable)
27
200
1.0 mA
Audio Output (Variable)
This is the variable audio output. The audio source is controlled
by the mode selection of Pin 3, and audio level is controlled by a
potentiometer connected to Pin 1. Refer to the description of
Pin 3, Table 1, Table 2, and Figure 17.
28
VCC
60
VCC
Intercarrier
Sound Output
28
1.0 mA
100 pF
2.0 k
0.001
To Sound Input
Pin 2 for FM,
Pin 23 for AM
Ceramic Bandpass Filter
1.0 k
Intercarrier Sound Output
This pin is the sound intercarrier output and is normally connected
to either the AM or FM sound IF input through a bandpass filter.
Because quadrature demodulation is used, the video level at this
output is greatly suppressed.
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