LA1845NV Просмотр технического описания (PDF) - SANYO -> Panasonic

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Компоненты Описание

производитель

LA1845NV

Single-Chip Home Stereo IC

SANYO -> Panasonic 

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Pin No.

Pin function

Pin voltage

19 AM detector output

0V (FM)

1.5V (AM)

20 S meter,

AM AGC

0.2V (FM)

0.9V (AM)

21 AM RF input

Vreg

22 AFC

Vreg

LA1845NV

Equivalent circuit

Notes

Output impedance ro = 3.3kΩ

19

20

R

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

this pin.

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

23 OSC

VCC

23

Connect the oscillator coil between this pin and pin

9 (VCC).

Note : Impedance of the secondary oscillator coil

must be 5kΩ or higher.

24 Oscillator buffer

output,

FM SD sensitivity

adjustment

VCC-1.4

R

24

The FM SD sensitivity can be adjusted with an

external resistor connected to this pin.

Output impedance R = 200Ω

Note : Resistance of the external resistor

connected to the pin 24 must be 3.3kΩ or higher.

No.7931-5/10

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