Features
• AEC-Q100 qualified
• AM/FM reception with digital IF processing
• Fully automotive grade CMOS design
• AM/FM Band
• Low-IF, DSP-based architecture
• Very high dynamic range built-in IF-ADC
• Minimum external component count
• Very small footprint package
• Multipath noise mitigation processing
• Compatible with HD-Radio™
• Digital Audio Output
• Fully RoHS-compliant

Description
The TDA7708S is a single chip fully-CMOS AM/FM tuner aimed at receivers for
terrestrial radio broadcasting.
The TDA7708S combines state-of-art performance with minimum external
component count, making it therefore ideal for integration into car radios and other
radio devices with challenging performance, quality, reliability and, last but not least,
cost requirements.
Such a low external component count is made possible by cutting-edge circuit and
implementation techniques that overcome the major challenges affecting both verylow
and zero IF receivers.
The TDA7708S features multiple front-end low-noise amplifiers (LNAs) to cover AM
LW/MW/SW bands, and the entire FM band, with advanced automatic gain control
(AGC) amplifier and mixer stages.
After on-chip IF filtering, the TDA7708S digitizes the signal with a very high dynamic
range ADC; it processes the complex phase-quadrature baseband signal allowing
applications like multipath noise mitigation, and integrated RDS decoding.
The TDA7708S furthermore integrates the HD-Radio™ channel filtering.
Besides providing optimal AM/FM quality reception, the TDA7708S makes it the ideal
solution to realize a complete HD-Radio™ receiver solution (in combination with the
external STA680D HD-Radio™ decoder), with a low bill of material, high performance
and real automotive grade quality and reliability.
The TDA7708SCB requires a very small FW code to be downloaded for booting the
IC, thus making it especially suited to systems whose microcontroller has limited
code storage capability.