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STMicroelectronics Electronic Components Datasheet

TDA7786M Datasheet

ELITE automotive tuners

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TDA7786
TDA7786M
ELITE automotive tuners for AM/FM car-radio
'!0'03
LQFP64
Features
AEC-Q100 qualified
FM, AM and weather band reception
Fully integrated VCO for world tuning
High performance PLL for fast RDS system
Integrated AM LNA and PIN diodes
Automatic self alignment for FM front-end pre-
selection filter and image rejection
Integrated IF filters with high selectivity,
dynamic range and adaptive bandwidth control
Drift-free Digital-IF signal processing with high
performance
RDS demodulation with group and block
synchronization
High performance stereo decoder with noise-
blanker
Digital interface for HD Radio™ reception with
digital audio blending
I2C bus-controlled
I2S input/output digital audio interfaces
Single 5 V supply
LQFP64 package
MuSICA (multipath noise reduction) algorithm
available for premium version of the device
Datasheet - production data
Description
The TDA7786x (ELITE) tuner is an optimized high-
performance AM/FM tuner IC family for car-radio
applications, suitable also (in combination with an
external baseband decoder) for HD Radio™
reception.
Its members integrate mixers and IF amplifiers for
AM, FM and WX, fully integrated VCO and PLL
synthesizer, IF- processing including adaptive
bandwidth control, stereo decoder, RDS decoder,
and digital interfaces for external HD Radio™
decoding on a single IC.
AM/FM IBOC base band filtering is available in
parallel to standard analog reception.
The utilization of digital signal processing results
in numerous advantages: very low number of
external components, very small space
occupation and easy application, very high
selectivity due to digital filters, high customization
possibility through software control, automatic
alignment and a powerful DSP for custom
processing.
Two versions of the device cover different
application/performance requirements:
TDA7786: entry-level, high-performance tuner;
TDA7786M: tuner with enhanced behavior in
case of FM multipath, thanks to the proprietary
MuSICA algorithm.
Both versions are HW- and SW-compatible.
Table 1. Device summary
Order code
Package
Packing
TDA7786
TDA7786M
LQFP64
(10x10x1.4mm)
Tray
October 2016
This is information on a product in full production.
DocID026122 Rev 5
1/54
www.st.com


STMicroelectronics Electronic Components Datasheet

TDA7786M Datasheet

ELITE automotive tuners

No Preview Available !

Contents
Contents
TDA7786, TDA7786M
1 Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Function description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 FM - mixers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 FM - AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.3 AM - LNA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.4 AM - AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5 AM - Mixers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6 IF A/D converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7 Audio D/A converters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.8 VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.9 PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.9.1 Tuner PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.10 Crystal oscillator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.11 DSP and digital hardware accelerators . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.12 Digital high speed IO interface pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.13 Multipath reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.14 HD Radio™ connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.15 I2S - serial audio interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.16 Audio sample rate converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.17 Serial control interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.17.1 Serial interface / boot mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.17.2 I2C bus protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.18 Digital-down-converter (DDC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.3 General key parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
3.4.1 FM - section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2/54 DocID026122 Rev 5


Part Number TDA7786M
Description ELITE automotive tuners
Maker STMicroelectronics
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TDA7786M Datasheet PDF






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