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參數(shù)資料
| 型號： | LA7567BVA |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| 封裝： | 0.225 INCH, SSOP-24 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 184K |
| 代理商： | LA7567BVA |
Pin No.
Pin
Description
Equivalent circuit
21
First SIF output
The input circuit includes a 600
resistor in the
emitter-follower output.
If an intercarrier is used, the buzz characteristics
can be improved by forming a chroma carrier trap
on this pin.
No.7939-19/20
LA7567BVA
RF AGC VR connection
This pin sets the tuner RF AGC operating point.
The FM output and the video output can be muted
at the same time by connecting this pin to ground.
RF AGC VR
ILA06814
20
k
20
k
560
21
4.2V
ILA06815
20
k
6
k
20
k
22
620
22
This circuit forms
a chroma carrier trap.
ILA06817
1
k
1
k
23
C
+
R
ILA06818
R2
300
10
k
C
R1
24
Continued from preceding page.
Connection for the filter that holds the FM detector
output voltage fixed.
Normally, a 1F electrolytic capacitor is used. If
there are problems with the low band (around
50Hz) frequency characteristics, this capacitor
value should be increased.
The FM detector output level can be reduced and
the FM dynamic range increased by inserting a
resistor between pin 23 and ground in series with
the capacitor 0.
22
NICAM output
23
FM filter
24
FM Detector output
Audio FM detector output
There is an internal 300
resistor in series with this
emitter-follower output.
Stereo applications
Certain stereo decoder input applications have a
low input impedance, and this can cause
distortion in the left and right signals and
degrade the stereo characteristics. If that is the
case, add a resistor between pin 24 and ground.
R1
≥ 5.1k
Mono applications
Form an external deemphasis circuit at this pin.
T = 2
× C × R
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA7567EV-A | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA7567EV-A | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA7567EV | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA7567EV | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA7567GM | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
相關(guān)代理商/技術(shù)參數(shù) |
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| LA7567EV | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support |
| LA7567GM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:TV and VCR VIF/SIF IF Signal-Processing Circuit with NTSC SPLIT Support |
| LA7567N | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support |
| LA7567NM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:TV and VCR VIF/SIF IF Signal-Processing Circuit with PAL/NTSC Multi-Format Audio Support |
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