LA7780M データシートの表示（PDF） - SANYO -> Panasonic
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LA7780M Datasheet PDF : 9 Pages
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Pin Descriptions
Pin No.
Function
Pin voltage (V)
1
RF1 input
2.8
LA7780M
Note
Equivalent circuit
2
RF gain
3
GND
1.3
Impedance connected to pin 2 must be > 45 Ω
0
4
RF1 output
Open collector
5
VCC
6
VCC
7
GND
8
RF2 input (1)
9
RF2 input (2)
5.0
5.0
0
2.5
V = 2.5 V
2.5
R = 1 kΩ
Internal/external
10
AGC switch
0 (GND)
1.0 (open)
Pin 10 → GND : Internal or external AGC
(narrow control range)
Pin 10 → open : External AGC (wide control range)
11
AGC filter 2
Open collector I1 = 20 µA
12
AGC filter 1
Open base
I2 = 100 µA
(Pin 10 → GND) I3, I4 & Q1 are switched on and off by pin 10.
4.0 (Pin 10 open)
Continued on next page.
No. 5268-5/9
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