LA1781M_09 Datasheet, PDF (43/48 Pages) Sanyo Semicon Device – For Car Radios Single-Chip Tuner IC

LA1781M
Sample AM tuner Circuit with the LC72144 Used Together
RF
CF
1st IF
2nd MIX
CF
IF
CF
450K
300Ω
XBUFF
LC72144
fosc
1
fOSC 10.25NHz
2
fOSC 10.35NHz
AM 1st IF
10.7MHz
10.8MHz
Step
10kHz, 11kHz
9kHz, 10kHz
FM IF
10.7MHz
10.8MHz
1st MIX
RF
10.71MHz _CF
62
59
56
60
1st OSC
CF
53
49
IF
CF
54
52
2nd OSC
10.26MHz
10kΩ
AF
31
NC
RF
10.7MHz _CF
CF
IF
QUADRATURE
AF
DETECTOR
63
60
56
53
51
64
59
Lch
MPX
Rch
No.6038-43/48