This document describes the features and characteristics of the TDA7540N AM/FM car radio tuner IC, including the FM part, AM part, stereo decoder, and additional features.
The TDA7540N is a high performance tuner circuit for AM/FM car radios designed using BICMOS technology. It integrates mixers, IF amplifiers, demodulators for both AM and FM, a stereodecoder, quality detection, an ISS filter, and a PLL synthesizer on a single chip to minimize external components.
The device features an Intelligent Selectivity System (ISS) for cancellation of adjacent channel and noise influences. It includes fully electronic alignment controlled via I2C-Bus, allowing for flexible configuration of the FM and AM sections, stereodecoder characteristics, and various quality detection functions.
| Package Type | LQFP80 (14x14x1.4mm) |
|---|---|
| Product Name | AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS) |
The device operates within a temperature range of -40 to 85°C.
The LQFP80 package measures 14x14x1.4mm.
The first FM intermediate frequency is 10.7MHz.