Datasheet > ATR4252

ATR4252

更新时间： 2024-02-10 09:12:32

品牌	Logo	应用领域
爱特美尔 - ATMEL		/
页数	文件大小	规格书
10页	352K
描述
All-in-One IC Solution for Active Antennas

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技术参数
数据手册

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ATR4252 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Base Number Matches：	1

ATR4252 数据手册

Features

• Highly Integrated - All-in-one Active Antenna IC

• Integrated AGC for AM and FM

• Integrated Driver for AM and FM PIN Diodes

• Integrated Power Supply Regulator

• Integrated Antenna Sensor

• Separated AM LNA, AM Buffer and FM Amplifier

• High Dynamic Range for AM and FM

• Excellent Noise Performance

All-in-One IC

Solution for

Active

• High Intercept Point 3rd Order for FM

• FM Amplifier Adjustable to Various Cable Impedances

• High Intercept Point 2nd and 3rd Order for AM

• Low Noise Output Voltage

• Low Power Consumption

• Low Output Impedance AM

Antennas

• Only Small Capacitor Values Necessary at AM AGC

• Large AM Frequency Range to Cover DRM Broadcast Signals

ATR4252

1. Description

The ATR4252 is a highly integrated high performance AM/FM antenna amplification

IC with several features. The device has built-in AGC's for both AM and FM, antenna

detection, a power supply regulator as well as additional pre-integrated peripherals.

Summary

Preliminary

The ATR4252 is based on BICMOS technology. The device is designed in particular

for car application and is suitable for active antennas located in several positions on

the car such as bumpers, windscreen, mirrors or windows.

Figure 1-1. Block Diagram

AM LNA

BIAS

REF

AMPD GND2 BIAS

FMB

FME

FMPD

Amplifier

LNA

AM LNA IN

FMC

AM LNA

SOURCE

Voltage

Supply

AGC

(FM)

FMDET

FMTC

CASCODE

FILTER

AM LNA OUT

AMBIAS

Antenna

Detect

Over

Voltage

AGC

(AM)

AMOUT

GND1

NOTE: This is a summary document.

The complete document is available

under NDA. For more information,

please contact your local Atmel sales

office.

Buffer

AMBUF IN

ANTENNA

VS VSTART OVDET VREGO AMTC1 AMTC2 AMDET

SENSE FILTER

9154AS–AUDR–09/09

12 3 4 5 6 7...10

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