LV25700PM Datasheet, PDF (13/68 Pages) Sanyo Semicon Device – For Car Radio Single chip Tuner IC

LV25700PM
Continued from preceding page.
Pin name
Function
13 Antenna Damping
Drive pin
Discription
Pin 13: Antenna damping current flows
when the RF AGC voltage becomes VCC-
Vbe.
Internal Equivalent Circuit
RF_VCC(PIN2)
75kΩ
300Ω
13
300Ω
14 VCO_GND
15
OSC VCC
16 OSC1
17 OSC2
(OSC)
OSC pin
RF_GND(PIN12)
GND
VCC = 8V
OSC_VCC(PIN15)
0.5kΩ
17
0.5kΩ
5kΩ
5kΩ
0.5kΩ
16
DAC
100kΩ
IRR_SW
200kΩ
0.8kΩ
18 SIGNAL QUARITY DC smoothing is performed by the output
(UNDESIRE DET) impedance and external capacity.
Note that too large capacity will reduce the
responsiveness of the IF filter as the
voltage of this pin is also used to control the
IF filter.
RF_GND(PIN12)
IF_VCC(PIN74)
0.5kΩ
22kΩ
0.5kΩ
18
3mA ^1kΩ
33kΩ
IF_GND(PIN72)
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No.A1709-13/68