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
• RDS demodulation with group and block synchronization
• Compatible with HD-Radio™ and DRM
• Digital Audio Output
• Fully RoHS-compliant

Description
The TDA7708 is a single chip fully-CMOS AM/FM tuner aimed at receivers for
terrestrial radio broadcasting.
The TDA7708 is a complete integrated and optimized RF tuner for AM/FM reception.
It allows the implementation of AM/FM solution (and also HD-Radio™ with external
STMicroelectronics's STA680 co-processor) for automotive grade receivers and other
applications.
The TDA7708 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 TDA7708 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 TDA7708 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 TDA7708 furthermore integrates the HD-Radio™ channel filtering.
Besides providing optimal AM/FM quality reception, the TDA7708 makes it the ideal
solution to realize a complete HD-Radio™ receiver solution (in combination with the
external STA680 HD-Radio™ decoder) or a DRM receiver (paired to the
STA660DRM), with a low bill of material, high performance and real automotive grade
quality and reliability.