參數(shù)資料
型號: LA1784M
元件分類: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
封裝: QIP-64
文件頁數(shù): 25/50頁
文件大?。?/td> 568K
代理商: LA1784M
No. 6039-31/50
LA1784M
FM Soft Muting (2)
FM Soft Muting (3)
Antenna input — dB
Antenna input — dB
O
u
tp
u
t
n
o
is
e
d
B
O
u
tp
u
t
d
B
O
u
tp
u
t
d
B
10 k
10 k
20 k
2 0k
15 k
15 k
DET out
Noise
R47 = 7.5 k
R47 = 7.5 k
Fig.21
Fig.22
200 k
30 k
+
+
58
33
31
200 k
R
VCC
R
N-AGC
To MIX out
Open
200 k
30 k
Mute
drive
Limiter
Quadrature detector
Mute amp.
(VCA)
DET out
A11767
20
1
0
Detector
output
Antenna input
When the pin is at the ground level, the noise convergence will
be 10 dB and the –3 dB limiting sensitivity will be about 0 dB
.
A12082
FM muting off function
Forcing this pin to the ground level turns muting off.
Fig. 23
Fig. 24
Output,
noise
dB
相關(guān)PDF資料
PDF描述
LA1787NM AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
LA1787NM AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
LA1800 AM/FM, AUDIO SINGLE CHIP RECEIVER, PDIP22
LA1805 AM/FM, AUDIO SINGLE CHIP RECEIVER, PDIP24
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