LA1787M Datasheet, PDF (48/54 Pages) Sanyo Semicon Device – Single-Chip Tuner IC for Car Radios

LA1787M
Sample AM tuner Circuit with the LC72144 Used Together
RF
CF
1st IF
2nd MIX
CF
IF
CF
450K
300 Ω
XBUFF
LC72144
fosc
1
f_OSC 10.25 MHz
2
f_OSC 10.35 MHz
AM 1st IF
10.7 MHz
10.8 MHz
Step
10 kHz, 11 kHz
9 kHz, 10 kHz
FM IF
10.7 MHz
10.8 MHz
A11782
1st MIX
RF
10.71 MHzCF
62
59
56
60
1st OSC
CF
53
49
IF
CF
54
52
2nd OSC
10.26 MHz
10 kΩ
AF
31
NC
RF
10.7 MHz _CF
CF
IF
Quadrature
AF
detector
63
60
56
53
51
64
59
Lch
MPX
Rch
A11783
No. 6655-48/54