Overview
The TDA7419 is a high-performance signal processor designed specifically for car radio applications by STMicroelectronics. This device integrates a comprehensive audio processor with fully integrated audio filters, ensuring low distortion and low noise through the use of BICMOS-process and linear signal processing. It features digital control via an I2C bus interface, allowing for a wide range of filter characteristics to be programmed.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply Voltage (Vs) | 8.0 | 8.5 | 10 | V |
| Supply Current (Is) | 27 | 37 | 47 | mA |
| Operating Temperature Range (Tamb) | -40 | 85 | °C | |
| Storage Temperature Range (Tstg) | -55 | 150 | °C | |
| Input Resistance (Rin) - Single-ended | 70 | 100 | 130 | kΩ |
| Input Resistance (Rin) - Differential | 70 | 100 | 130 | kΩ |
| Common Mode Rejection Ratio (CMRR) | 46 | 70 | dB @ 1 kHz | |
| Output Noise @ Speaker Outputs | 12 | μV (20 Hz to 20 kHz, flat) |
Key Features
- Four stereo inputs
- Soft-step volume control
- Bass, middle, treble, and loudness controls
- Direct mute and soft-mute functions
- Four independent speaker outputs and subwoofer output
- Soft-step speaker/subwoofer control
- 7-band spectrum analyzer
- Digital control via I2C bus interface
Applications
The TDA7419 is primarily designed for car radio applications, offering advanced audio processing capabilities. It is suitable for use in automotive audio systems where high-quality audio signal processing is required.
Q & A
- What is the primary application of the TDA7419? The TDA7419 is primarily designed for car radio applications.
- What type of interface does the TDA7419 use for digital control? The TDA7419 uses an I2C bus interface for digital control.
- How many stereo inputs does the TDA7419 have? The TDA7419 has four stereo inputs.
- What are the key audio controls available on the TDA7419? The key audio controls include bass, middle, treble, and loudness.
- Does the TDA7419 support mute functions? Yes, the TDA7419 supports both direct mute and soft-mute functions.
- What is the operating temperature range of the TDA7419? The operating temperature range is from -40°C to 85°C.
- What is the supply voltage range for the TDA7419? The supply voltage range is from 8.0 V to 10 V.
- How many independent speaker outputs does the TDA7419 have? The TDA7419 has four independent speaker outputs and a subwoofer output.
- What is the purpose of the 7-band spectrum analyzer in the TDA7419? The 7-band spectrum analyzer is used to analyze the audio signal across different frequency bands.
- What is the typical supply current of the TDA7419? The typical supply current is 37 mA.
