Overview
The TDA7786x (ELITE) tuner is an optimized high-performance AM/FM tuner IC family designed by STMicroelectronics for car-radio applications. This IC is also suitable for HD Radio™ reception when combined with an external baseband decoder. It integrates various components such as mixers and IF amplifiers for AM, FM, and weather band (WX), a fully integrated VCO and PLL synthesizer, IF-processing with adaptive bandwidth control, a stereo decoder, an RDS decoder, and digital interfaces for external HD Radio™ decoding on a single IC.
The TDA7786x family includes two versions: the TDA7786, an entry-level high-performance tuner, and the TDA7786M, which features enhanced behavior in case of FM multipath thanks to the proprietary MuSICA algorithm. Both versions are hardware- and software-compatible.
Key Specifications
| Parameter | Description |
|---|---|
| Package | LQFP64 (10x10x1.4 mm) |
| Supply Voltage | Single 5 V |
| Operating Temperature | -40°C to 85°C |
| Reception Bands | FM, AM, and Weather Band |
| VCO | Fully integrated for world tuning |
| PLL | High performance for fast RDS system |
| AM LNA and PIN Diodes | Integrated |
| IF Filters | Integrated with high selectivity, dynamic range, and adaptive bandwidth control |
| Digital Signal Processing | Drift-free Digital-IF signal processing with high performance |
| RDS Demodulation | With group and block synchronization |
| Stereo Decoder | High performance with noise-blanker |
| Digital Interfaces | I2C bus-controlled, I2S input/output digital audio interfaces |
| Qualification | AEC-Q100 qualified |
Key Features
- AEC-Q100 qualified for automotive use
- 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 and I2S input/output digital audio interfaces
- Single 5 V supply and LQFP64 package
- MuSICA (multipath noise reduction) algorithm available for the TDA7786M version
Applications
The TDA7786x IC family is primarily designed for car-radio applications, providing high-performance AM/FM and weather band reception. It is also suitable for HD Radio™ reception when used in conjunction with an external baseband decoder. The integrated features and digital signal processing capabilities make it an ideal choice for modern automotive infotainment systems.
Q & A
- What is the TDA7786x IC family used for?
The TDA7786x IC family is used for car-radio applications, providing AM/FM and weather band reception, and is also suitable for HD Radio™ reception.
- What are the key differences between the TDA7786 and TDA7786M?
The TDA7786M features enhanced behavior in case of FM multipath thanks to the proprietary MuSICA algorithm, while the TDA7786 is an entry-level high-performance tuner.
- What is the package type of the TDA7786x IC?
The TDA7786x IC comes in an LQFP64 package (10x10x1.4 mm).
- What is the operating temperature range of the TDA7786x IC?
The operating temperature range is -40°C to 85°C.
- Does the TDA7786x IC support HD Radio™ reception?
Yes, it supports HD Radio™ reception when used with an external baseband decoder.
- What digital interfaces does the TDA7786x IC support?
The IC supports I2C bus-controlled and I2S input/output digital audio interfaces.
- Is the TDA7786x IC AEC-Q100 qualified?
Yes, the TDA7786x IC is AEC-Q100 qualified for automotive use.
- What is the MuSICA algorithm, and which version of the IC includes it?
The MuSICA algorithm is a multipath noise reduction algorithm, and it is available in the TDA7786M version.
- Does the TDA7786x IC have integrated IF filters?
Yes, the IC has integrated IF filters with high selectivity, dynamic range, and adaptive bandwidth control.
- What is the supply voltage requirement for the TDA7786x IC?
The IC requires a single 5 V supply.
