TDA7540B:Am/FM Tuner with Stereodecoder and Iss

The TDA7540 is a high performance tuner circuit for AM/FM car radio. It contains mixer, IF amplifier, demodulator for AM and FM, stereodecoder, 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.

Key Features

  • FM-PartRF AGC generation by RF and IF detectionI/Q mixer for 1st FM IF 10.7MHz with image rejectionMixer for 2nd IF 450kHzInternal 450KHz bandpass filter with bandwidth control by ISSFully integrated FM-demodulator with spike cancellation
  • StereodecoderPLL with adjustment free, fully integrated VCOAutomatic pilot dependent MONO/STEREO switchingProgrammable ROLL-OFF compensationHigh cut and stereo blend-characteristics programmableDedicated RDS-muteInternal noise blanker with several threshold controls
  • AM-PartWide and narrow AGC generationMixer for 1st IF 10.7MHz, AM upconversionMixer for 2nd IF 450kHz, AM downconversionIntegrated AM-demodulatorAM IF- and audio noise blanking
  • Additional FeaturesVCO for world tuning rangeHigh performance fast PLL for RDS-SystemIF counter for FM and AM with search stop signalQuality detector for level, deviation, adjacent channel and multipathISS (Intelligent Selectivity System) for cancellation of adjacent channel and noise influencesAdjacent channel muteFully electronic alignmentAll functions I2 C-Bus controlled
Product Specifications
DescriptionVersionSize
DS4733: AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)2.0825 KB
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)Unit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
TDA7540BLQFP 80 14x14x1.4Tray----NECEAR99-
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
TDA7540BLQFP 80 14x14x1.4AutomotiveEcopack2ipc1752_d51s-a124bc6.pdf
AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS) TDA7540B
circuit_diagram_12326_thumbnail.png TDA7540B
ipc1752_d51s-a124bc6.pdf TDA7540B