Overview
The TDA7718NTR is a high-performance signal processor designed specifically for car radio applications by STMicroelectronics. This device integrates a high-performance audioprocessor with fully integrated audio filters and features the new Soft Step architecture. It is optimized for automotive use, offering advanced audio processing capabilities.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 7.5 to 10 | V |
| Supply Current | 23 to 35 | mA |
| Operating Ambient Temperature | -40 to 85 | °C |
| Storage Temperature Range | -55 to 150 | °C |
| Input Resistance (Single-Ended) | 70 to 130 | kΩ |
| Input Resistance (Differential) | 70 to 100 | kΩ |
| Common Mode Rejection Ratio (CMRR) | 44 to 60 | dB |
| Output Noise (20 Hz - 20 kHz, A-weighted) | 12 to 22 | μV |
| Signal to Noise Ratio (all gain = 0 dB, A-weighted) | 98 to 104 | dB |
| Package Type | TSSOP-28 | |
| Packing Type | Tape and Reel |
Key Features
- Input Multiplexer: Supports various input configurations including quasi-differential stereo inputs, single-ended inputs, and full-differential inputs.
- Loudness Control: Programmable center frequency (400 Hz, 800 Hz, 2400 Hz) with 15 dB attenuation and selectable high frequency boost.
- Volume Control: +23 dB to -31 dB with 1 dB step resolution and soft-step control with programmable blend times.
- Bass Control: 2nd order frequency response with programmable center frequency (60 Hz, 80 Hz, 100 Hz, 200 Hz) and Q factor (1.0, 1.25, 1.5, 2.0).
- Mute Functions: Direct mute and digitally controlled SoftMute with programmable mute times.
- Offset Detection: Offset voltage detection circuit for on-board power amplifier failure diagnosis.
- Soft Step Architecture: Allows for smooth and precise control over audio parameters.
- I2C Bus Interface: For digital control and programming of various audio settings.
Applications
The TDA7718NTR is specifically designed for car radio applications, providing advanced audio processing capabilities that enhance the overall audio experience in automotive systems.
Q & A
- What is the operating voltage range of the TDA7718NTR?
The operating voltage range is from 7.5 V to 10 V.
- What types of input configurations does the TDA7718NTR support?
The device supports quasi-differential stereo inputs, single-ended inputs, and full-differential inputs.
- What are the key features of the loudness control in the TDA7718NTR?
The loudness control has a programmable center frequency (400 Hz, 800 Hz, 2400 Hz) with 15 dB attenuation and selectable high frequency boost.
- How does the volume control work in the TDA7718NTR?
The volume control offers +23 dB to -31 dB with 1 dB step resolution and soft-step control with programmable blend times.
- What are the programmable parameters for the bass control?
The bass control has programmable center frequency (60 Hz, 80 Hz, 100 Hz, 200 Hz) and Q factor (1.0, 1.25, 1.5, 2.0).
- Does the TDA7718NTR have mute functions?
Yes, it has direct mute and digitally controlled SoftMute with programmable mute times.
- How does the offset detection work in the TDA7718NTR?
The device includes an offset voltage detection circuit for on-board power amplifier failure diagnosis.
- What is the Soft Step architecture in the TDA7718NTR?
The Soft Step architecture allows for smooth and precise control over audio parameters.
- What interface does the TDA7718NTR use for digital control?
The device uses an I2C bus interface for digital control and programming of various audio settings.
- What is the package type of the TDA7718NTR?
The package type is TSSOP-28.
- Is the TDA7718NTR RoHS compliant?
Yes, the TDA7718NTR is RoHS compliant with Ecopack2.
