Overview
The TAS6424EQDKQRQ1 is a four-channel digital-input Class-D audio amplifier designed by Texas Instruments. It is specifically tailored for automotive audio applications, offering a blend of high performance, compact size, and advanced digital processing capabilities. This amplifier operates with a 2.1 MHz PWM switching frequency, ensuring exceptional sound quality with a wide 40 kHz audio bandwidth. It is capable of functioning down to 4.5 V, making it reliable during start/stop events in vehicles. The TAS6424EQDKQRQ1 is AEC-Q100 qualified, ensuring it meets stringent automotive standards for reliability and performance.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Audio input type | Digital Input | Architecture | Class-D |
| Speaker channels (max) | 4 | Rating | Automotive |
| Power stage supply (max) (V) | 26.4 | Power stage supply (min) (V) | 4.5 |
| Load (min) (Ω) | 1 | Output power (W) | 75 |
| THD + N at 1 kHz (%) | 0.02 | Iq (typ) (mA) | 165 |
| Control interface | I2C | Closed/open loop | Closed |
| Analog supply (min) (V) | 4.5 | Analog supply voltage (max) (V) | 26.4 |
| Sampling rate (max) (kHz) | 96 | PSRR (dB) | 75 |
| Operating temperature range (°C) | -40 to 125 |
Key Features
- Fully digital design with advanced digital processing capabilities.
- High accuracy and low power consumption.
- Integrated DC/DC buck converter for improved efficiency.
- Advanced load diagnostics and protection, including open load, shorted load, short-to-battery, and short-to-ground detection.
- Supports audio specifications up to 192 kHz sampling rate and 24-bit resolution.
- EMI management features such as spread-spectrum, output phase offset, and optimized slew rate.
- Real-time monitoring, audible alarms for errors, and scheduled maintenance alerts.
- I2C control interface with 4 address options.
- Output current limiting and short protection, along with over-temperature, undervoltage, and overvoltage protection.
Applications
The TAS6424EQDKQRQ1 is designed for use in various automotive audio applications, including:
- Automotive infotainment systems.
- Head units.
- External amplifier modules.
- Aftermarket audio solutions.
It enhances sound quality, power efficiency, and overall audio performance in vehicles.
Q & A
- Q: What is the warranty period for the TAS6424EQDKQRQ1?
A: The warranty period is 1 year, covering any defects in materials and workmanship under normal use.
- Q: How does the TAS6424EQDKQRQ1 ensure reliability during start/stop events in vehicles?
A: The amplifier can operate down to 4.5 V, ensuring reliability during start/stop events.
- Q: What is the maximum output power of the TAS6424EQDKQRQ1?
A: The maximum output power is 75 W per channel into a 4 Ω load at 25 V BTL.
- Q: What are the key EMI management features of the TAS6424EQDKQRQ1?
A: The features include spread-spectrum, output phase offset, and optimized slew rate to mitigate electromagnetic interference.
- Q: What types of audio inputs does the TAS6424EQDKQRQ1 support?
A: It supports 4-channel I2S or 4/8-channel TDM input with sample rates of 44.1 kHz, 48 kHz, and 96 kHz, and formats from 16-bit to 32-bit.
- Q: What is the operating temperature range of the TAS6424EQDKQRQ1?
A: The operating temperature range is -40°C to 125°C.
- Q: What kind of protection features does the TAS6424EQDKQRQ1 have?
A: It includes output current limiting, short protection, over-temperature, undervoltage, and overvoltage protection, as well as open ground and power tolerant features.
- Q: How does the TAS6424EQDKQRQ1 manage load diagnostics?
A: It has built-in load diagnostic functions for detecting and diagnosing misconnected outputs, including open load, shorted load, short-to-battery, and short-to-ground detection.
- Q: What is the package type and pin count of the TAS6424EQDKQRQ1?
A: The package type is HSSOP-56 with 56 pins).
- Q: Is the TAS6424EQDKQRQ1 AEC-Q100 qualified?
A: Yes, the TAS6424EQDKQRQ1 is AEC-Q100 qualified for automotive applications).
