LV25700PM Datasheet, PDF (11/68 Pages) Sanyo Semicon Device – For Car Radio Single chip Tuner IC

Pin Discription
Pin name
Function
1
MIXER OUT1
80 MIXER OUT1
LV25700PM
Discription
FM/AM MIX OUT (common)
Internal Equivalent Circuit
1 80
2
RF VCC
3
AM MIXER input 1 AM MIX IN
4
AM MIXER input 2 Input impedance = 10kΩ
RF_GND(PIN12)
VCC = 8V
RF_VCC(PIN2)
4
2.5kΩ
10kΩ
10kΩ
12kΩ
3
110Ω 110Ω
5
AM RF AGC
6
AM ANT ATT
RF AGC rectifier capacitor
Determination of distortion ratio during
low-frequency modulation
Increase C5;
Distortion → improved
Response → slow
Decrease C5;
Distortion → worse
Response → quick
For pin diode drive
I6 = 8mA
ANT damping current
RF_GND(PIN2)
RF_VCC(PIN2)
1kΩ
AGC_DEC
1kΩ
1kΩ
1kΩ
IF_GND(PIN72)
5
RF_VCC(PIN2)
IF_GND(PIN72)
1kΩ
6
200Ω
1kΩ
IF_GND(PIN72)
Continued on next page.
No.A1709-11/68