Datasheet > 射频和微波 > 射频/微波调制器/解调器> U4311B-FL

U4311B-FL

更新时间： 2024-11-21 12:59:35

品牌	Logo	应用领域
TEMIC		射频调制器射频解调器微波调制器微波解调器射频和微波遥控
页数	文件大小	规格书
14页	167K
描述
Demodulator, SO-16L, 16 PIN

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中文翻译

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技术参数
数据手册

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U4311B-FL 技术参数

生命周期：	Transferred	包装说明：	SO-16L, 16 PIN
Reach Compliance Code：	unknown	风险等级：	5.64
构造：	MODULE	射频/微波设备类型：	DEMODULATOR
Base Number Matches：	1

U4311B-FL 数据手册

U4311B

TELEFUNKEN Semiconductors

Low–Current Superhet Remote Control Receiver

Description

The U4311B is a monolithic Integrated Circuit in bipolar lock-, alarm or telecontrol remote indication systems.

technology for low-current UHF remote control super- Especially for automotive applications it supports a

heterodyne receivers in amplitude- or frequency- superhet design with about 1 mA total current consump-

modulated mode. Typical applications are keyless car tion, as required by the car manufacturers.

Features

Usable for amplitude- and frequency- modulated

transmission systems

Logarithmic AM demodulator

FM demodulator

Extremely low quiescent current approximately 1 mA

in the stand-by mode due to wake-up concept

Monoflop exit to wake up a microcontroller

High performance operational amplifier to realize a

data recovering filter

Wide power supply voltage range 3 to 13 V

Sensitive IF-amplifier for 10.7 MHz operating

frequency

Non-inverting clamping comparator with amplitude-

depending hysteresis for data regeneration

Block Diagram

Wake up out

Ref

= 2.4V

Data out

Non – invert.

clamping

comparator

Bandgap

Monoflop

Wake up

Internal

= 2.4 V

Level

Ref

10.7 MHz

Quadrature

detector

Operational

amplifier

–

95 9968

log AM out

FM out

Data

filter

10.7 MHz

Figure 1. Block diagram

Rev. A1: 23.06.1995

1 (14)

12 3 4 5 6 7...14

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