参数资料
型号: LA1787M-MPB-E
厂商: ON Semiconductor
文件页数: 6/54页
文件大小: 0K
描述: IC CAR RADIO TUNER 64QFP
标准包装: 60
频率: 520kHz ~ 1.71MHz,64MHz ~ 108MHz
调制或协议: AM,FM
应用: 车载音频
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
电源电压: 8V
工作温度: -40°C ~ 85°C
封装/外壳: *
供应商设备封装: *
包装: *
LA1787M
Pin Descriptions
Pin No.
Function
Description
Equivalent circuit
VCC
62 pin
ANT
RF
AGC
An antenna damping current flows
1000pF
1
Antenna damping drive
when the RF AGC voltage (pin 2)
reaches V CC – V D .
100 ?
1
300 ?
1000pF
VCC
100 ?
A13555
FET
2nd GATE
12k ?
2
RF AGC
Used to control the FET
second gate.
+
2
DAMPING
ANT
DRIVER
N
AGC
DET
KEYED
W
AGC
DET
VCC
AGC
A13556
3
F.E.GND
VCC
4
4
OSC
Oscillator connection
25pF
VT
20pF
2k ?
A13557
7
VCC
AM first oscillator
7
AM OSC
This circuit can oscillator up to the
SW band.
An ALC circuit is included.
ALC
A13558
Continued on next page .
No. 6655-6/54
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