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DATA SHEET
TAS6421-Q1 75-W, 2-MHz Digital Input 1-Channel Automotive Class-D Burr-Brown™ Audio Amplifier with Load Dump Protection and I2C Diagnostics
1 Features
- Advanced load diagnostics
- DC Diagnostics run without input clocks
- AC Diagnostic for tweeter detection with impedance and phase response
- Easily meet CISPR25-L5 EMC specification
- AEC-Q100 Qualified for automotive applications
- Temperature grade: –40°C to +125°C
- Audio inputs
- I2S or 4/8-channel TDM input
- Input sample rates: 44.1 kHz, 48 kHz, 96 kHz
- Input formats: 16-bit to 32-Bit I2S, and TDM
- Audio outputs
- Single-channel bridge-tied load (BTL)
- Up to 2.1 MHz output switching frequency
- 27 W, 10% THD Into 4 Ω at 14.4 V BTL
- 45 W, 10% THD Into 2 Ω at 14.4 V BTL
- Audio performance Into 4 Ω at 14.4 V BTL
- THD+N < 0.02% at 1 W
- 42 µVRMS Output Noise
- –90 dB Crosstalk
- Load diagnostics with Host-independent operation
- Output open and shorted load
- Output-to-battery or ground shorts
- Line output detection Up to 6 kΩ
- Protection
- Output current limiting and short protection
- 40 V Load dump
- Open ground and power tolerant
- Overtemperature warning and shutdown
- Undervoltage and overvoltage, DC Offset
- General operation
- 4.5 V to 26.4 V supply voltage
- I2C control with 4 address options
- Clip detection (latching or non-latching)
