參數(shù)資料
型號(hào): LA7565KM
元件分類(lèi): 接收器
英文描述: AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24
封裝: MFP-24
文件頁(yè)數(shù): 7/18頁(yè)
文件大?。?/td> 207K
代理商: LA7565KM
No. 6100-15/18
LA7565E, 7565KM
Pin No.
Pin
Pin function
Equivalent circuit
FM filter
Connection for a filter used to hold the FM detector output at
a fixed DC voltage.
Normally, a 1-F electrolytic capacitor is used. If the low
area (around 50 Hz) frequency characteristics are seen as a
problem, this capacitance should be increased.
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 23 and ground.
Continued from preceding page.
24
23
FM detector output
Audio FM detector output.
A resistance of 200
is inserted in series with the emitter
follower.
In applications that support stereo:
In applications that input to a stereo decoder, the reduced
input impedance can cause distortion in the L-R signal. This
may degrade the stereo characteristics. If this is a problem
add the resistor R1 between pin 24 and ground.
R1
≥ 5.1 k
In applications that support mono:
Attach an external de-emphasis circuit with the following
time constant.
t = CR2
1 k
1 k
A12069
23
C
+
R
R2
300
10
k
C
R1
A12070
24
相關(guān)PDF資料
PDF描述
LA75665M AM/FM, AUDIO/VIDEO DEMODULATOR, PDSO24
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