LA1130

Ordering number : EN595C

AM Tuner for Car Radio

Monolithic Linear IC

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

93097HA (KT)/2248KI/D147KI/4105MW/3163KI, ki No.595-1/5

Overview

The LA1130 is an IC developed for AM tuner systems in

car radio applications. It provides low-level local

oscillation so that it can be applied in varactor diode tuning

applications as well as µ tuning applications.

Functions

• RF amplification

• MIX

• OSC (with ALC)

• IF amplification

• Detection

• AGC (normal)

• RF wide-band AGC

• Others

Package Dimensions

unit: mm

3020A-SIP16

[LA1130]

SANYO: SIP16

Features

• Good space factor due to single-end package.

• Easy to design printed circuit pattern due to 3mm-pitch pin interval.

• Double-balanced type MIX :

Improvement in IF interference, spurious interference.

• Normal AGC :

Less variation in detector output to input.

• RF wide-band AGC :

Improvement in cross modulation distortion, especially strong input characteristics in

varactor diode tuning applications because of low operating level (300mVrms).

• AGC drive output for FET :

Possible to apply AGC to FET at input stage in varactor diode tuning applications.

• ALC at OSC stage :

Improvement in tracking error due to stabilized low-level (350mVrms) oscillation output

in varactor diode tuning applications.

• Reference voltage output :

Possible to use 5.6V reference voltage for other bias (FET, etc.).

•VCC variation compensation : Less variation in gain, distortion, etc. (7.5 to 16V)

• Less ripple voltage :

Less modulation of carrier by supply voltage ripple.

• Low pop noise :

Possible to reduce pop noise at the time of VCC-on, mode-on by selecting AGC time

constant.

Equivalent Circuit Block Diagram