LA1130中文資料三洋數(shù)據(jù)手冊(cè)PDF規(guī)格書

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

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.