TDA7541B AM/FM car radio tuner IC w stereo decoder and intelligent selectivity system

The TDA7541B is a high performance tuner circuit with stereo decoder for AM/FM car radio. It contains a mixer, IF amplifier, demodulator for AM and FM, stereo decoder, quality detection, ISS filter and PLL synthesizer with IF counter on a single chip. Use of BICMOS technology allows the implementation of several tuning functions and a minimum of external components.

技术特性
  • FM part
    • AGC generation by RF and IF detection
    • I/Q mixer for 1st IF 10.7 MHz with image rejection
    • Mixer for 2nd IF 450 kHz
    • Internal 450 kHz band pass filter with bandwidth control by ISS
    • Fully integrated FM demodulator with noise cancellation
  • AM part
    • Wide and narrow AGC generation
    • Mixer for 1st IF 10.7 MHz, AM up conversion
    • Mixer for 2nd IF 450 kHz
    • Integrated AM-demodulator
    • AM IF noise blanking
  • Stereo decoder
    • PLL with adjustment free, fully integrated VCO
    • Automatic pilot dependent MONO/STEREO switching
    • Programmable ROLL-OFF compensation
    • High cut and stereo blend-characteristics programmable
    • Dedicated RDS mute
    • Audio noise blanker
  • Additional features
    • VCO for world tuning range
    • High performance fast PLL for RDSSystem
    • IF counter for FM and AM with search stop signal
    • Quality detector for level, deviation, adjacent channel and multipath
    • ISS (Intelligent selectivity system) for cancellation of adjacent channel and noise influences
    • Adjacent channel mute
    • Fully electronic alignment
    • Independent weather band input
    • All functions I²C bus controlled
功能框图
TDA7541B 订购信息
订购型号 产品状态 美金价格 数量 封装 包装形式 温度范围 材料声明
TDA7541B Active 3.557 1000 LQFP 64 10x10x1.4 Tray   TDA7541B
TDA7541BW Active 3.917 1000 LQFP 64 10x10x1.4 Tray   TDA7541BW
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TDA7541B AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system 1 939KB