LV25700PM Datasheet, PDF (28/68 Pages) Sanyo Semicon Device – For Car Radio Single chip Tuner IC

Mixer/VCO/PLL
1
1
2
3
4
C3
0.1μF
LV25700PM
AM
Program Counter
Reference Counter _X'tal 39
OSC
1/4,1/6
1/8,1/10
VCC8V
Phase
38
3kΩ
Detecter
Charge
90°
FM
1/2
Pump
1/1
1/2,1/3
10kΩ
AM_OFF
OSC
100Ω
100Ω 100Ω 100Ω
12
10 11
16 17
19
23
20 21
22
C16
2pF
L16
L_OSC
C17
3pF
C16B
27pF
R18
33kΩ
C16A
4pF
VCD2
SVC704
C18
150pF
C21
0.22μF
C22
0.015μF
C22B
1000pF
R21
R22
2.7kΩ 3.3kΩ
• VCO (twofold oscillation/150MHz to
260MHz)
Oscillation driven by the external inductor
and varactor diode
• Frequency division
FM Weather (1/1)
FM USA/Eur (1/2)
FM Japan (1/3)
AM (1/8, 1/12, 1/16, 1/20)
FM OSC Frequencies vs. Frequency Division Ratios
Destination
RF Frequency Range
Channel Step
(kHz)
(kHz)
USA
87.9 to 108.1
200
EUROPE
87.5 to 108.0
50
EAST EUROPE
64 to 74
10
JAPAN
76 to 90
100
Weather Band
162.4 to 162.55
25
Reference Frequency
(kHz)
100
100
10
100
25
Frequency Division Ratio
2
2
3
3
1
AM OSC
MW
USA
EUROPE
JAPAN
RF Frequency Range
(kHz)
520 to 1710
522 to 1611
522 to 1629
Channel Step
(kHz)
10
9
9
Reference Frequency
(kHz)
10
10
10
Frequency Division Ratio
20
(AM/FM: 1/2 × AM: 1/10)
20
(AM/FM: 1/2 × AM: 1/10)
20
(AM/FM: 1/2 × AM: 1/10)
LW
EUROPE
RF Frequency Range
(kHz)
146 to 281
Channel Step
(kHz)
1
Reference Frequency
(kHz)
10
Frequency Division Ratio
20
(AM/FM: 1/2 × AM: 1/10)
SW
SW1
SW2
SW3
RF Frequency Range
(kHz)
2.28 to 6.23
Channel Step
(kHz)
5
Reference Frequency
(kHz)
5
Frequency Division Ratio
12
(AM/FM: 1/2 × AM: 1/6)
7.1 to 10.5
5
5
12
(AM/FM: 1/2 × AM: 1/6)
10.55 to 18
5
5
12
(AM/FM: 1/2 × AM: 1/4)
* The setting of the frequency division ratio may differ due to the varactor and coil used in OSC.
No.A1709-28/68