LA1823_06 Datasheet, PDF (10/12 Pages) Sanyo Semicon Device – Single-Chip Tuner ICs for Use in Radio Cassette Recorder

Continued from preceding page.
Pin
number
Function
14
Pilot detector filter
(forced monaural
mode)
LA1823, LA1823M
Quiescent
voltage (V)
AM
FM
2.9
3.8
Remarks
Forced monaural mode when pin 14 is
connected to ground
Equivalent circuit
14
15
Phase comparator
0
3.8 FM mode is when pin 15 is open, and AM
filter
mode is when pin 15 is connected to ground
15
(AM/FM switch)
16
L output
17
R output
1.2
1.2 Rout = 7.5kΩ
18
MPX input
1.2
1.2 Rin = 50kΩ
19
AM/FM detector
0.3
1.0 Output impedance
output
AM : Rout = 50kΩ
FM : Rout = 500Ω
The channel separation can be adjusted with
an external capacitor connected between
this pin and ground
20
FM-OSC
4.5
4.4 Connect the FM oscillator coil between this
pin and pin 21 (VCC2)
16
Rout
17
18
Rin
Rout (FM)
19
Rout (AM)
21
20
Continued on next page.
No.6854-10/12