TDA7708
AM/FM/HD-Radio™ submicron technology automotive receiver
Data brief
Such a low external component count is made
possible by cutting-edge circuit and
implementation techniques that overcome the
major challenges affecting both very-low and
zero IF receivers.
VFQFPN64 (9 x 9 x 1.0 mm)
GAPGPS02776
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
The TDA7708 features multiple front-end low-
noise amplifiers (LNAs) to cover AM LW/MW/SW
bands, and the entire FM band, with advanced
DSP-controlled 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.
The TDA7708CB 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.
Table 1: Device summary
Order code
TDA7708
TDA7708TR
TDA7708CB
TDA7708CBTR
Package
VFQFPN64
(9 x 9 x 1 mm)
VFQFPN64
(9 x 9 x 1 mm)
Packing
Tray
Tape & Reel
Tray
Tape & Reel
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.
January 2018
DocID027311 Rev 4
1/8
www.st.com
For further information contact your local STMicroelectronics sales office.
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