TEA6845H Overview
TEA6845H AC CHARACTERISTICS I2C-BUS PROTOCOL I2C-bus specification Test mode Data transfer for the TEA6845 I2C-bus pull-up resistors Frequency setting I2C-bus protocol Data transfer mode and IC address Write mode: data byte 1 TEST AND APPLICATION INFORMATION PACKAGE OUTLINES SOLDERING Introduction to soldering surface mount packages Reflow soldering Wave soldering Manual soldering Suitability of surface mount IC...
TEA6845H Key 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 of 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 of 450 kHz
- Crystal oscillator providing mixer frequencies for AM mixer 2 and reference for synthesizer PLL, IF count, timing for Ra
- 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 auto alignment circuit for conversion of LC oscillator tuning voltage to controlled alignment voltage of FM ante
- AGC PIN diode drive circuit for FM RF AGC; AGC detection at FM mixer input; the AGC PIN diode drive can be activated by