Overview
The TDA7786CTR, produced by STMicroelectronics, is an optimized high-performance AM/FM tuner IC designed specifically for car-radio applications. This component is part of the TDA7786x (ELITE) tuner family, which also supports HD Radio™ reception when combined with an external baseband decoder. The TDA7786CTR integrates various key components such as mixers, IF amplifiers for AM, FM, and weather band (WX), a fully integrated VCO and PLL synthesizer, and digital interfaces for external HD Radio™ decoding. The use of digital signal processing enhances the tuner's performance by reducing the number of external components, minimizing space occupation, and providing high selectivity and customization through software control.
Key Specifications
| Parameter | Description |
|---|---|
| Part Number | TDA7786CTR |
| Package | LQFP64 (10x10x1.4 mm) |
| Marketing Status | Active |
| Grade | Industrial |
| RoHS Compliance Grade | Ecopack1 |
| Supply Voltage | Single 5 V |
| Operating Temperature (°C) | Not specified in the provided sources, but typically within the range for automotive applications |
| Data Interface | I2C bus-controlled, I2S input/output digital audio interfaces |
Key Features
- AEC-Q100 qualified for automotive reliability
- 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
- MuSICA (multipath noise reduction) algorithm available for the premium version (TDA7786M)
Applications
The TDA7786CTR is primarily designed for car-radio applications, offering 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 component's robust design and features make it ideal for use in automotive infotainment systems.
Q & A
- What is the TDA7786CTR used for?
The TDA7786CTR is used for high-performance AM/FM and weather band reception in car-radio applications.
- What package type does the TDA7786CTR come in?
The TDA7786CTR comes in a 64-pin LQFP package (10x10x1.4 mm).
- Is the TDA7786CTR AEC-Q100 qualified?
Yes, the TDA7786CTR is AEC-Q100 qualified, ensuring it meets automotive reliability standards.
- What is the supply voltage for the TDA7786CTR?
The TDA7786CTR operates on a single 5 V supply.
- Does the TDA7786CTR support HD Radio™ reception?
Yes, the TDA7786CTR supports HD Radio™ reception when used with an external baseband decoder.
- What data interfaces does the TDA7786CTR support?
The TDA7786CTR supports I2C bus-controlled and I2S input/output digital audio interfaces.
- What is the MuSICA algorithm, and is it available in the TDA7786CTR?
The MuSICA algorithm is a multipath noise reduction feature, but it is specifically available in the premium version, TDA7786M, not the TDA7786CTR.
- Is the TDA7786CTR RoHS compliant?
Yes, the TDA7786CTR is RoHS compliant with an Ecopack1 grade.
- What are the key advantages of using digital signal processing in the TDA7786CTR?
The use of digital signal processing in the TDA7786CTR results in a low number of external components, small space occupation, high selectivity due to digital filters, and high customization possibilities through software control.
- Does the TDA7786CTR have automatic alignment features?
Yes, the TDA7786CTR features automatic self-alignment for the FM front-end pre-selection filter and image rejection.
- What types of filters are integrated into the TDA7786CTR?
The TDA7786CTR includes integrated IF filters with high selectivity, dynamic range, and adaptive bandwidth control.
