Overview
The TDA7786M is a high-performance AM/FM tuner IC developed by STMicroelectronics, part of the ELITE automotive tuner family. This IC is optimized for car-radio applications and is also suitable for HD Radio™ reception when combined with an external baseband decoder. The TDA7786M integrates various components such as mixers, IF amplifiers for AM, FM, and WX, a fully integrated VCO and PLL synthesizer, IF-processing with adaptive bandwidth control, a stereo decoder, RDS decoder, and digital interfaces for external HD Radio™ decoding. The device utilizes digital signal processing, which results in a low number of external components, small space occupation, high selectivity due to digital filters, and high customization possibilities through software control.
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 Interfaces | I2C bus-controlled, I2S input/output digital audio interfaces |
| RoHS Compliance | Ecopack1 |
Key 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 and I2S input/output digital audio interfaces
- MuSICA (multipath noise reduction) algorithm available for premium version (TDA7786M)
Applications
The TDA7786M is primarily designed for car-radio applications, offering high-performance AM/FM tuning. It is also suitable for HD Radio™ reception when used in conjunction with an external baseband decoder. The device's advanced features and integration make it ideal for automotive infotainment systems where high-quality radio reception and minimal external component requirements are crucial.
Q & A
- What is the TDA7786M used for?
The TDA7786M is used for high-performance AM/FM tuning in car-radio applications and can also support HD Radio™ reception with an external baseband decoder.
- What are the key features of the TDA7786M?
Key features include AEC-Q100 qualification, fully integrated VCO and PLL synthesizer, integrated IF filters, RDS demodulation, and a high-performance stereo decoder. It also includes the MuSICA algorithm for multipath noise reduction.
- What is the MuSICA algorithm?
The MuSICA algorithm is a proprietary multipath noise reduction system available in the TDA7786M, enhancing its performance in FM multipath conditions.
- What is the operating temperature range of the TDA7786M?
The operating temperature range is -40°C to 85°C.
- What package type does the TDA7786M come in?
The TDA7786M comes in an LQFP64 package (10x10x1.4 mm).
- Is the TDA7786M RoHS compliant?
Yes, the TDA7786M is RoHS compliant with an Ecopack1 rating.
- What digital interfaces does the TDA7786M support?
The TDA7786M supports I2C bus-controlled and I2S input/output digital audio interfaces.
- Can the TDA7786M be used for HD Radio™ reception?
Yes, the TDA7786M can be used for HD Radio™ reception when combined with an external baseband decoder.
- What are the benefits of using digital signal processing in the TDA7786M?
The benefits include a low number of external components, small space occupation, high selectivity due to digital filters, and high customization possibilities through software control.
- Is the TDA7786M compatible with other versions of the device?
Yes, the TDA7786M is HW- and SW-compatible with the TDA7786.
