參數(shù)資料
型號(hào): LV25700PM
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 調(diào)諧器
英文描述: AUDIO TUNER, PQFP80
封裝: 20 X 14 MM, QIP-80
文件頁(yè)數(shù): 3/22頁(yè)
文件大?。?/td> 746K
代理商: LV25700PM
LV25700PM
No.A1709-11/68
Pin Discription
Pin name
Function
Discription
Internal Equivalent Circuit
1
80
MIXER OUT1
FM/AM MIX OUT (common)
1
80
RF_GND(PIN12)
2
RF VCC
VCC = 8V
3
4
AM MIXER input 1
AM MIXER input 2
AM MIX IN
Input impedance = 10k
Ω
4
3
110
Ω
110
Ω
10k
Ω
2.5k
Ω
12k
Ω
10k
Ω
RF_VCC(PIN2)
RF_GND(PIN2)
5
AM RF AGC
RF AGC rectifier capacitor
Determination of distortion ratio during
low-frequency modulation
Increase C5;
Distortion → improved
Response → slow
Decrease C5;
Distortion → worse
Response → quick
5
1k
Ω
1k
Ω
1k
Ω
1k
Ω
RF_VCC(PIN2)
IF_GND(PIN72)
AGC_DEC
6
AM ANT ATT
For pin diode drive
I6 = 8mA
ANT damping current
6
1k
Ω
1k
Ω
200
Ω
RF_VCC(PIN2)
IF_GND(PIN72)
Continued on next page.
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