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ATR4256 - Frequency Synthesizer

Description

The ATR4256 is a synthesizer IC for FM receivers and an AM up-conversion system in BiCMOS technology.

Together with the AM/FM IC ATR4258 or ATR4255, it comprises a complete AM/FM car radio front-end, which is also recommended for RDS (Radio Data System) applications.

Features

  • Reference Oscillator up to 15 MHz (Tuned) Oscillator Buffer Output (for AM Up/Down Conversion) Two Programmable 16-bit Dividers Fine-tuning Steps Possible Fast Response Time Due to Integrated Loop Push-pull Stage 3-wire Bus (Enable, Clock and Data; 3V and 5V Microcontrollers Acceptable) Four Programmable Switching Outputs (Open Drain) Three DACs for Software Controlled Tuner Alignment Lo.

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Datasheet preview – ATR4256

Datasheet Details

Part number ATR4256
Manufacturer ATMEL Corporation
File Size 543.08 KB
Description Frequency Synthesizer
Datasheet download datasheet ATR4256 Datasheet
Additional preview pages of the ATR4256 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com Features • • • • • • • • • • • Reference Oscillator up to 15 MHz (Tuned) Oscillator Buffer Output (for AM Up/Down Conversion) Two Programmable 16-bit Dividers Fine-tuning Steps Possible Fast Response Time Due to Integrated Loop Push-pull Stage 3-wire Bus (Enable, Clock and Data; 3V and 5V Microcontrollers Acceptable) Four Programmable Switching Outputs (Open Drain) Three DACs for Software Controlled Tuner Alignment Low-power Consumption High Signal to Noise Ratio (SNR) Integrated Band Gap – Only One Supply Voltage Necessary 1. Description The ATR4256 is a synthesizer IC for FM receivers and an AM up-conversion system in BiCMOS technology.
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