LA1844

Manufacturer Part NumberLA1844
DescriptionSingle chip tuner IC
ManufacturerSanyo Semiconductor Corporation
LA1844 datasheet
 


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Pin voltage
Pin No.
Function
(V)
21
AM RF input
Vreg
22
AFC
Vreg
23
OSC
V CC
24
Oscillator buffer
V CC -1.4
output,
FM SD sensitivity
adjustment
LA1844,LA1844M
Equivalent circuit
Must be used at the same potential as pin 22
The FM SD bandwidth can be adjusted with the
external resistor connected between this pin and
pin 3 (REG)
Connect the oscillator coil between this pin and
pin 9 (V CC )
Note: Impedance of the secondary oscillator coil
The FM SD sensitivity can be adjusted with an
external resistor connected to this pin.
Output impedance R O = 200Ω
Note: Resistance of the external resistor
Notes
must be 5kΩ or higher.
connected to the pin 24 must be 3.3kΩ
or higher.
No.7930A-8/11