Overview
The TDA7718BTR is a high-performance 3-band car audio processor designed and manufactured by STMicroelectronics. This integrated circuit is specifically tailored for car radio applications, offering a comprehensive set of audio processing features. It includes fully integrated audio filters and a new soft-step architecture, enabling precise control over various audio parameters. The device supports multiple input configurations and provides advanced functionalities such as loudness, bass, middle, and treble adjustments, along with subwoofer control and mute functions.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 3 |
| Interface | I²C |
| Voltage - Supply | 7.5V ~ 10V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Package Type | TSSOP-28 |
| Current Consumption | Approx. 35 mA |
Key Features
- Input Multiplexer: Supports quasi-differential stereo inputs (QD1), single-ended stereo inputs (SE1, SE2, SE3), and full-differential or quasi-differential stereo input (FD/QD2).
- Loudness Control: Programmable center frequency (400 Hz / 800 Hz / 2400 Hz), 15 dB with 1 dB steps, and selectable high frequency boost or flat-mode.
- Volume Control: +23 dB to -31 dB with 1 dB step resolution, soft-step control with programmable blend times.
- Bass, Middle, and Treble Adjustments: 2nd order frequency responses with programmable center frequencies and Q factors for each band.
- Speaker and Subwoofer Controls: Independent soft-step controls for speakers and subwoofer, with programmable cut-off frequencies for the subwoofer.
- Mute Functions: Direct mute and digitally controlled soft-mute with programmable mute times.
- Offset Detection: Offset voltage detection circuit for on-board power amplifier failure diagnosis.
Applications
The TDA7718BTR is primarily designed for car radio and automotive audio systems. It is suitable for any application requiring advanced audio processing, including car stereos, infotainment systems, and other automotive audio equipment. Its features make it an ideal choice for enhancing the audio quality and user experience in vehicle audio systems.
Q & A
- What is the primary function of the TDA7718BTR? The TDA7718BTR is a 3-band car audio processor designed for car radio applications, providing advanced audio processing features.
- What types of input configurations does the TDA7718BTR support? It supports quasi-differential stereo inputs, single-ended stereo inputs, and full-differential or quasi-differential stereo inputs.
- What is the voltage supply range for the TDA7718BTR? The voltage supply range is 7.5V to 10V.
- What is the operating temperature range for the TDA7718BTR? The operating temperature range is -40°C to 85°C.
- What interface does the TDA7718BTR use for communication? The TDA7718BTR uses the I²C interface for communication.
- What are the key audio processing features of the TDA7718BTR? Key features include loudness control, volume control, bass, middle, and treble adjustments, speaker and subwoofer controls, and mute functions.
- What package type is the TDA7718BTR available in? The TDA7718BTR is available in a TSSOP-28 package.
- How does the TDA7718BTR handle mute functions? It provides direct mute and digitally controlled soft-mute with programmable mute times.
- What is the purpose of the offset detection feature in the TDA7718BTR? The offset detection feature is used for on-board power amplifier failure diagnosis.
- In what types of applications is the TDA7718BTR typically used? It is typically used in car radio and automotive audio systems, including car stereos and infotainment systems.
