LA1836M Просмотр технического описания (PDF) - SANYO -> Panasonic

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LA1836M

Single-Chip Home Stereo Electronic Tuning IC

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Function

Voltage

23

MPX VCO

3.5 V (FM)

0 V (AM)

LA1836, 1836M

Internal equivalent circuit

Remarks

Recommended ceramic resonator: CSB456F15

(Murata)

24

AM/FM demodulator

output

2.9 V (FM)

3.0 V (AM)

25

AM low cut

2.9 V (FM)

3.0 V (AM)

26

AM AGC

0 V (FM)

0.5 V (AM)

Output impedance: 1.5 kΩ (FM), 10 kΩ (AM)

The separation can be adjusted with the external

capacitor connected between this pin and

ground.

The AF demodulation frequency low area

frequency characteristics can be adjusted with

the external capacitor connected between this

pin and ground. The AM detector output can be

attenuated by connecting a resistor in series with

this capacitor.

Internal load resistance: R = 6.7 kΩ

27

AM RF input

VREG

28

AFC

VREG

This pin must be used at the same potential as

pin 4.

The FM-SD bandwidth can be adjusted with the

external resistor connected between this pin and

pin 4.

29

OSC

VREG

30

Oscillator buffer output,

FM SD sensitivity

adjustment

1.6 V (FM)

1.3 V (AM)

The oscillator coil is connected between this pin

and pin 4.

The FM SD sensitivity can be adjusted with the

external resistor connected between this pin and

ground.

Output impedance ro = 200 Ω

No. 4787-7/13

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