ATR4258 datasheet(1/38 Pages) ATMEL

1 / 38 page

Features

• FM Double-conversion System

• Integrated Second IF Filter with Software-controlled Bandwidth

• Completely Integrated FM Demodulator

• Soft Mute and Multipath Noise Cancellation

• Receiving Condition Analyzer

• AM Up/Down-conversion System

• AM Preamplifier with AGC and Stereo Capability

• 3-wire Bus Controlled

• Search Stop Signal Generation (AM and FM)

• Automatic Alignment Possible

• Pin Compatible with ATR4255

• World Tuner, US Weatherboard, J-band

• Lead-free Package

Electrostatic sensitive device.

Observe precautions for handling.

1.

Description

The ATR4258 is a highly integrated AM/FM front-end circuit manufactured using

Atmel’s advanced BICMOS technology. It represents a complete, automatically

adjustable AM/FM front end, containing a double-conversion system for FM and an

up/down-conversion receiver for AM with IF1 = 10.7 MHz and IF2 = 450 kHz. The

front end is suitable for digital or analog AF-signal processing. Together with the PLL

U4256BM, an automatically aligned high-performance AM/FM tuner can be built.

These ICs are dedicated for highly sophisticated car radio applications.

AM/FM

Receiver IC

ATR4258

Rev. 4838B–AUDR–05/05

Similar Part No. - ATR4258