la1845nv

Manufacturer Part Numberla1845nv
DescriptionSingle-chip Home Stereo Ic
ManufacturerSanyo Semiconductor Corporation
la1845nv datasheet
 


1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
Page 5/10

Download datasheet (536Kb)Embed
PrevNext
Continued from preceding page.
Pin No.
Pin function
Pin voltage
19
AM detector output
0V (FM)
1.5V (AM)
20
S meter,
0.2V (FM)
AM AGC
0.9V (AM)
21
AM RF input
Vreg
22
AFC
Vreg
23
OSC
V CC
24
Oscillator buffer
V CC -1.4
output,
FM SD sensitivity
adjustment
LA1845NV
Equivalent circuit
Output impedance r o = 3.3kΩ
19
The resistance of the built-in resistor R is 13.9kΩ.
The SD response during seek operation is
determined with the external capacitor connected to
20
this pin.
R
Must be used at the same potential as pin 22.
21
The FM SD bandwidth can be adjusted with the
external resistor connected between this pin and
pin 3 (Vreg).
22
Connect the oscillator coil between this pin and pin
23
9 (V CC ).
Note : Impedance of the secondary oscillator coil
must be 5kΩ or higher.
The FM SD sensitivity can be adjusted with an
external resistor connected to this pin.
Output impedance R = 200Ω
R
Note : Resistance of the external resistor
24
connected to the pin 24 must be 3.3kΩ or higher.
Notes
No.7931-5/10