LA1787M Datasheet, PDF (47/54 Pages) Sanyo Semicon Device – Single-Chip Tuner IC for Car Radios

Input Circuits for Each Stage
[FM]
• Mixer input
LA1787M
• First IF input
75 Ω ^{0.022 µF}
63
75 Ω
64
VIN
Actual
measurement A11775
75 Ω
300 Ω ^{0.022 µF}
56
75 Ω
fr = 10.7 MHz
A11776
• IF input
75 Ω
300 Ω ^{0.022 µF}
75 Ω
fr = 10.7 MHz
330 Ω
0.022 µF
51
50
A11777
[AM]
• First mixer input
50 Ω
0.022 µF
62
50 Ω
fr = RF
A11778
• IF input
50 Ω
0.022 µF
52
50 Ω
fr = 450 kHz
A11780
• Second mixer input
50 Ω
0.022 µF
49
50 Ω
fr = 10.71 MHz (f2nd osc + 0.45 MHz)
A11779
• Del input
50 Ω
IFT
0.022 µF
45
50 Ω
fr = 450 kHz
A11781
No. 6655-47/54