LA1780 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LA1780

Single-Chip Tuner IC for Car Radios

SANYO -> Panasonic 

Continued from preceding page.

Pin No.

Function

LA1780M

Description

Equivalent circuit

8

Noise AGC sensitivity

9

AGC adjustment

After setting up the medium field

(about 50 dBµ) sensitivity with the

noise sensitivity setting pin (pin 8),

set the weak field (about 20 to

30 dBµ) sensitivity with the AGC

adjustment pin (pin 9)

11

Memory circuit connection

12

Memory circuit connection

Recording circuit used during

noise canceller operation.

Differential

amp

Gate

circuit

13

Pilot input

Pin 13 is the PLL circuit input pin.

14

N.C, MPX, MRC, GND

Ground for the N.C., MPX, and

MRC circuits.

Continued on next page.

No. 5724-8/38

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