Packaging information
| Package | Pins HSSOP (DKQ) | 56 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 1,000 | LARGE T&R |
Features for the TAS6424R-Q1
- AEC-Q100 Qualified for automotive applications
- Temperature grade 1: –40°C to +125°C T A
- Advanced load diagnostics
- DC Diagnostics run without input clocks
- AC Diagnostic for tweeter detection with impedance and phase response
- Easily meets CISPR25-L5 EMC specifications
- Audio inputs
- 4 Channel I 2S or 4/8-channel TDM input
- Input sample rates: 44.1 kHz, 48 kHz, 96 kHz
- Input formats: 16-bit to 32-bit I 2S, and TDM
- Support for high resolution audio systems
- Audio outputs
- Four-channel bridge-tied load (BTL)
- Two-channel parallel BTL (PBTL)
- Up to 2.1 MHz output switching frequency
- 45 W, 10% THD Into 2 Ω at 14.4 V BTL
- 75 W, 10% THD Into 4 Ω at 25 V BTL
- 150W, 10% THD Into 2 Ω at 25 V PBTL
- Audio performance into 4 Ω at 14.4 V BTL
- THD+N <0.009% at 1 W
- 30 µV RMS output noise
- –97 dB crosstalk
- Load diagnostics
- Open load, shorted load, short-to-battery, short-to-ground
- Line output detection up to 6 kΩ
- Protection
- Enhanced reverse current capabilities
- Output current limiting and short protection
- 40 V Load dump
- Open ground and power tolerant
- DC offset
- Over-temperature, undervoltage, and overvoltage
- General operation
- 4.5 V to 26.4 V supply voltage
- I 2C Control with 4 address options
- Latched and non-latched clip detect
- Enhanced EMI management
Description for the TAS6424R-Q1
The TAS6424R-Q1 device is a four-channel digital-input Class-D audio amplifier that implements a 2.1 MHz PWM switching frequency enabling a cost-optimized device in a very small PCB size, full operation down to 4.5 V for start/stop events, and exceptional sound quality with up to 40 kHz audio bandwidth.
The output switching frequency can be set either above the AM band, which eliminates AM-band interferences and reduces output filtering and cost, or below the AM band to optimize efficiency.
The device has a built-in load diagnostic function for detecting and diagnosing misconnected outputs as well as detection of AC-coupled tweeters to help to reduce test time during the manufacturing process.
The devices adds EMI management features including spread-spectrum, output phase offset and optimized slew rate to assist in system level EMI challenges.
The TAS6424R-Q1 Class-D audio amplifier is designed for use in automotive head units and external amplifier modules. For pin compatible one, two and four-channel devices see the the Device Options table.