參數(shù)資料
型號： LA75505M
文件頁數(shù)： 4/13頁
文件大?。?/td> 224K
代理商： LA75505M
System Switching
No. 6930-4/13
LA75505M
IF system switch
45.75 MHz is selected as the IF frequency by leaving pin 12 (crystal oscillation) open. 58.75 MHz is selected by
adding 220 k
between pin 12 and GND.
Split/inter carrier switch
Inter carrier is selected by setting the first SIF input (pin 16) to GND.
Pin Assignment
19
2
1
SIF INPUT
FM FILTER
1st SIF OUT
VIDEO DET OUT
EQ OUT
APC FILTER
FLL FILTER
VCO COIL
VCO COIL
SIF AGC FILTER
NC
REF OSC
FM DET OUT
RF AGC VR
SIF PLL FILTER
FILTER CONTROL CAPACITOR
VIF INPUT
VIF INPUT
GND
VCC
1st SIF INPUT
IF AGC FILTER
RF AGC OUT
AFT OUT
3
4
5
6
7
8
9
16
17
18
20
21
22
23
24
10
11
12
13
14
15
Top view
LA75505M
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