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參數(shù)資料
| 型號(hào)： | AN7243 |
| 廠商： | Panasonic Corporation |
| 英文描述： | FM Front-end Circuit for Car Radio |
| 中文描述： | FM前端電路車用收音機(jī) |
| 文件頁數(shù)： | 7/7頁 |
| 文件大?。?/td> | 81K |
| 代理商： | AN7243 |
ICs for FM/AM Tuner
AN7243S
I
Pin Descriptions (Cont.)
Equivalent Circuit
Description
Pin No.
Pin Name
Typ. Waveform
13
Mix.Output
Input signal from RF Amp.
12
PIN Diode
Driver Output
Drive PIN diode for input attenuate
of RF-Amp.
Determine drive current by Pin12
external resistance.
14
GND
Main circuit GND
7.2V
.0V
RF
12
V
CC
13
2.2k
2.2k
Note) Typical waveform frequency is the value when tuning receiving frequency 98.0 MHz.
I
Supplementary Explanation
AGC
AGC used at the AN7243S uses mixer output (IFT primary side) signal and controls AGC output.
+
–
RF
Amp.
Mixer
AGC
Amp.
AGC
Det.
IFT
IF – Amp.
R
Adj.
(S
AGC
variable)
12
6
V
5
, V
12
–V
IN (RF)
8
7
6
5
4
3
2
1
0
V
CC
= 8V
V
IN (RF)
(dB
μ
)
A
S
AGC
Variable
V
5
V
12
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AN7243S | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:FM Front-end Circuit for Car Radio |
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| AN7246S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FM Receiver Circuit |
| AN725 | 制造商:SILABS 制造商全稱:SILABS 功能描述:ADVANCED LOW POWER TECHNIQUES FOR SiM3L1XX DEVICES |
| AN7250S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:AM Receiver Circuit |
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