ATR4262

Features World Tuner Application Due to Integrated VCO Dividers RF Input for Weather Band Applications AM Reception 100 kHz Up to 30 MHz AM Up/Down Conversion Depending on Reception Frequency VCO Slave Mode for Phase Diversity Applications FM Image Rejection Mixer Selectable High-side/Low-side Injection for FM Mode Selectable FM Mixer Output RF-AGC Threshold Programmable for AM and FM Inband-AGC Threshold Programmable Cascode Control Voltage for AM FET Pre-stage www.DataSheet4U.com Integrated Pin-diode Drivers for AM and FM Three Selectable IF Amplifier Inputs Fractional PLL with Fast Lock Time Small Frequency Steps for AM Excellent SNR for DRM Applications Differential Reference Frequency Input for PLL Down to 9 kHz or Integrated XCO Driver Available Two Wire Interface (TWI) with Two Selectable Bus Addresses Digital Electronic Alignment of Up to Two External Filter Stages Flexible and Economic IF Filter Concept Control Inputs for IF Gain, Reception Frequency and Keyed AGC Integrated State-machine for Optional Control of Alternative Frequency Check Only One Power Supply Voltage Necessary Broadcast Radio Front-end IC for AM/FM/DRM/HD Radio ATR4262 Summary Preliminary 1. Description The ATR4262 is a single-chip AM/FM and weather band tuner dedicated for digital IF solutions in car-radio applications. ATR4262 is produced using Atmel®’s advanced BICMOS2S technology and fulfills the automotive requirements. This part is suitable for ...