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參數(shù)資料
| 型號(hào)： | LA75665M |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| 封裝： | MFP-24 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 139K |
| 代理商： | LA75665M |
No. 6227-7/12
LA75665M
Pin No.
Symbol
Pin function
Equivalent circuit
Pin Functions
1
FM DET OUT
Audio FM detector output
This circuit includes an internal 300
resistor in series with the
emitter-follower output.
Stereo applications
The input impedance may be reduced according to the
applications that input this signal to a stereo decoder. This can
result in distortion in the left and right signals and a degradation
of the stereo characteristics. If this problem occurs, add a
resistor between pin 24 and ground.
R1
≥ 5.1 k
Mono applications
Forms an external deemphasis circuit.
t = CR2
A12486
R2
300
10 k
C
R1
1
2
SIF FILTER
Connection for a filter that holds the FM detector output DC
voltage at a fixed level. Normally, a 1-F electrolytic capacitor is
used. To improve the low band (around 50 Hz) frequency
characteristics, increase the value of this capacitor (C1).
The FM detector output level can be reduced and the FM
dynamic range increased by inserting this resistor in series with
the capacitor.
2
+
1 k
1 k
C1
R
A12487
5
6
VIF IN
VIF amplifier input.
The input circuit is constructed as a balanced input, and the
input has the following impedance characteristics:
R
≈ 1.5 k
C
≈ 3 pF
5
6
1 k
1 k
A12488
Continued on next page.
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| LA75665NM | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA75665NM | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA75665NV | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA7566 | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP24 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA75665NM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA75665NV | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LA75675M-S | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:VIF/SIF IF Signal-Processing Circuit that Supports NTSC Intercarrier for TV and VCR Products |
| LA75676M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For TV and VCR Products IF Signal Processor (VIF+SIF) |
| LA75676V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:For TV and VCR Products IF Signal Processor (VIF+SIF) |
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