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參數(shù)資料
| 型號： | LA75525AVA |
| 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)： | 10/10頁 |
| 文件大小： | 171K |
| 代理商： | LA75525AVA |
LA75525AVA
No.A1256-9/10
Continued from preceding page.
Pin No.
Pin name
Function
Equivalent circuit
20
RF AGC VR
RF AGC VR connection.
This pin sets the tuner RF AGC operating point Also, the FM
output and the video output can both be muted the same time by
connecting this pin to GND.
20
1k
1k
3.6V
VCC
21
SIF BPF
OUTPUT
The output to the external band-pass filter is passed through an
internal 6dB amplifier before being output.
21
100
VCC
22
AUDIO BIAS
FILTER
Connection for a filter used to hold the FM detector output DC
voltage fixed. Normally, a 1
F electrolytic capacitor should be
used. The capacitance should be increased if the low band
(around 50Hz) frequency characteristics need to be improved.
The FM detector output level can be reduced and the FM
dynamic range can be increased by inserting a resistor and a
capacitor in series between pin 22 and GND.
22
300
20K
20K
300
23
FILTER
CONTROL C
Internal sound carrier TRAP are tuned using the capacitor
connected to pin 23.
A value between 0.47
F and 1F is considered desirable taking
video S/N, and AM and PM noise into consideration.
23
20K
500
500
24
AUDIO
OUTPUT
Audio FM detector output. A 54k
resister is inserted in series
with an emitter-follower output.
For applications that support mono:
Create an external de-emphasis circuit.
t = C1
× R1
24
54k
VCC
6k
400
R1
C1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LA75525VA | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA7555 | AM/FM, AUDIO/VIDEO DEMODULATOR, PDIP24 |
| LA75600VA | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
| LA75600VA | AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA75525VA | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Monolithic Linear IC For TV Sets and VCRs VIF/SIF Signal-Processing IC |
| LA7555 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:IF Signal Processing (VIF+SIF) Cricuit for TV/VCR Use |
| LA75600VA | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Monolithic Linear IC IF Signal Processing (VIF/SIF) IC for use in TV/VCR Applications |
| LA7565B | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:IF Signal-Processing IC for PAL/NTSC Multi-System Audio TV and VCR Products |
| LA7565BM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:IF Signal-Processing IC for PAL/NTSC Multi-System Audio TV and VCR Products |
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