TEA6840

INTEGRATED CIRCUITS DATA SHEET TEA6840H New In Car Entertainment (NICE) car radio Preliminary specification File under Integrated Circuits, IC01 1999 Jul 12 Philips Semiconductors Preliminary specification New In Car Entertainment (NICE) car radio FEATURES FM mixer for conversion of FM RF from 65 to 108 MHz to IF of 10.7 MHz; the mixer provides inherent image rejection FM RF mixer can be set to receive weather band radio up to 162.55 MHz; weather band radio flag output AM mixer 1 for conversion of AM RF to AM IF1 10.7 MHz LC tuner oscillator providing mixer frequencies for FM mixer and AM mixer 1 AM mixer 2 for conversion of AM IF1 to AM IF2 450 kHz Crystal oscillator providing mixer frequencies for AM mixer 2 and reference for synthesizer PLL, IF count, timing for Radio Data System (RDS) update and reference frequency for car audio signal processor IC Fast synthesizer PLL tuning system with local control for inaudible RDS updating Timing function for RDS update algorithm and control signal output for car audio signal processor ICs (TEA688x, SAA77xx) Digital alignment circuit for conversion of LC oscillator tuning voltage to controlled alignment voltage of FM antenna tank circuit AGC pin diode drive circuit for FM RF AGC; AGC detection at FM mixer input; the AGC pin diode drive can be activated by the I2C-bus as a local/distance function; AGC threshold is a programmable and keyed function switchable via the I2C-bus FM IF linear amplifiers with high dy...