Datasheet > LA1136

LA1136

更新时间： 2024-11-20 22:31:35

品牌	Logo	应用领域
三洋 - SANYO		/
页数	文件大小	规格书
28页	566K
描述
AM Tuners for Car Radios and Home Stereos

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数据手册

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LA1136 数据手册

Ordering number: EN 3507

Monolithic Linear IC

LA1136N, 1136NM, 1137N, 1137NM

AM Tuners for Car Radios and Home Stereos

Overview

Features

The LA1136N/NM and LA1137N/NM are high-performance

AM electronic tuner ICs offering sophisticated functions. They

are especially suited for use in car radio and home stereo

(antenna: loop) applications.

Excellent cross modulation characteristic: Meets the

requirements for preventing not only adjacent-channel

interference but also interference caused by all channels

within broadcast band.

Narrow-band signal meter output: Usable as auto search stop

signal. Has linearity up to 100 dBµ.

Local oscillation buffer output: Facilitates designing of

electronic tuner system, frequency display, etc.

OSC (with ALC): Improves tracking error because

oscillation output is stabilized at a low level (350 mVrms:

LA1137N) for varactor diode.

MIX: Double-balanced differential MIX meeting the

requirements for preventing spurious interference, IF

interference.

Good characteristic at high input: 130 dBµ input

fm = 400 Hz 80%mod THD = 0.5% typ.

High S/N: Good S/N at medium input (55 dB typ).

Usable sensitivity: (S/N = 20 dB input): 25 dBµ

(when using 2SK715 )

Functions

MIX

OSC (with ALC)

IF amplifier

Detector

AGC (normal)

RF wide-band AGC

Auto search stop signal (Signal meter output)

Local oscillation buffer output

IF band switching circuit (for LA1136N only)

IF count buffer

Stop detector output (can be set independently)

Tweet prevention circuit

AGC (RF, IF) time constant switching circuit

IF AGC circuit

Pin-diode driver

AM stereo decoder IF output (for LA1136N only)

V_CCvariation compensation: Less variation in gain,

distortion: 8 to 12 V

AM stereo capability (LA1136N only)

IF band switching circuit on chip; controlled by

microcontroller

Oscillating circuit for AM stereo; SUB S/N improved to

6 dB

IF output for AM stereo decoder

Improved tweet characteristics: 10 dB increase, controlled by

microcontroller

Improved cross modulation characteristics, especially

sensitivity suppression characteristics: 15 dB improvement,

wide-band AGC operation even for SW band interference

Improved low-frequency modulation distortion

Improved temperature characteristics: S-meter, SD sensitivity

Faster RF AGC response: RF: 1/3; IF: 1/8 (compared to

Circuit preventing incorrect seek operation

predecessors)

Improved capability for driving external RF AGC transistors:

I_Bmax = 200 µA

Measures to prevent incorrect seek operation

IF count buffer on chip; controlled by microcontroller

Time constant switching circuit on chip for RF and IF

AGC

IF AGC clear circuit on chip

Measures that prevent stopping one station too soon

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

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

93097HA(II)/4281TS(US) No.3507-1/28

12 3 4 5 6 7...28

中文翻译

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与LA1136相关器件

型号	品牌	获取价格	描述	数据表
LA1136M	ETC	获取价格
LA1136N	SANYO	获取价格	AM Tuners for Car Radios and Home Stereos
LA1136NM	SANYO	获取价格	AM Tuners for Car Radios and Home Stereos
LA1137	SANYO	获取价格	AM Tuners for Car Radios and Home Stereos
LA1137M	ETC	获取价格
LA1137N	SANYO	获取价格	AM Tuners for Car Radios and Home Stereos
LA1137NM	SANYO	获取价格	AM Tuners for Car Radios and Home Stereos
LA1140	SANYO	获取价格	FM IF System for Car Radio
LA1140_09	SANYO	获取价格	FM IF SYSTEM FOR CAR RADIO
LA1140-E	ONSEMI	获取价格	FM IF System with Quadrature Detection for Car Radios

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