LA1824 Datasheet, PDF (7/10 Pages) Sanyo Semicon Device – Single Chip Tuner IC for Use in Radio/Cassette Products with Manual Tuning

Pin
number
Function
Quiescent
voltage (V)
AM FM
8 Tuning indicator 4.5 4.5
Stereo
9 indicator and 4.5 4.5
AM IF output
LA1824
Equivalent circuit
8
ILA00387
9
ILA00388
Remarks
Active-low
Open-collector output can directly
drive LED (IC max = 20 mA)
Active-low
Open-collector output can directly
drive LED (IC max = 20 mA)
AM-IF signal is output in
AM mode
10 FM-IF input 1.3 1.3
10
Rin
2
ILA00314
Rin = 330 Ω
11 AM-IF input 1.3 1.3
AM-AGC
12 ^{output and}
FM signal
meter output
0.7 0.2
13 FM-DET
4.5 4.5
11
Rin
2
ILA00315
Rin = 2 kΩ
12
R
ILA00316
13
ILA00317
Internal load resistance
R = 16.6 kΩ
Connect the FM detector coil
between this pin and pin 4
(VCC1)
No.6855-7/10