TAS6754-Q1
4-Kanal-Audioverstärker der Klasse D, 19 V, mit Digitaleingang und 1L-Modulation für die Automobilin
TAS6754-Q1
- AEC-Q100 qualified for Automotive applications
- Temperature grade 1: –40°C to +125°C, TA
- General operation
- 4.5V to 19V supply voltage, 40V load dump
- Low latency path reducing group delay by >70% at 48kHz
- Support for 1.8V and 3.3V I/O’s
- I2C control with 8 address options
- 1L Modulation
- Requires only one inductor per channel saving four inductors vs a traditional solution
- Lower system component cost for inductors
- Smaller PCB footprint
- Audio Performance
- THD+N 0.05% (4Ω, 1W, 1kHz)
- Output noise: 35µVRMS at 14.4V, A-weighting
- Efficiency > 87% @ 4×25W, 4 Ω, 14.4V
- Output current sensing by channel via I2S or TDM
- No external circuitry needed
- Real-time load diagnostics
- Monitor output conditions while playing audio
- Open Load , Shorted load, Short-to-power, and Short-to-ground detection
- DC and AC Standby load diagnostics
- Audio inputs
- 2-4 channel via I2S or 4-16 channel via TDM
- Input sample rates: 44.1, 48, 96, 192 kHz
- Audio outputs
- 4 channel bridge-tied load (BTL)
- 2MHz output switching frequency
- 4×30W (4 Ω, 14.4V, 1kHz 10% THD+N)
- 4×50W (2 Ω, 14.4V, 1kHz 10% THD+N)
- Advanced spread-spectrum and selectable phase offset
- Protection and Monitoring
- Cycle-by-cycle current limiting
- Output short protection
- Clip detection with configurable thresholds
- Thermal foldback and PVDD foldback
- I2C temperature and supply voltage readout
- Configurable overtemperature warning and individual channel shutdown
- DC offset, undervoltage and overvoltage
The TAS6754-Q1 is a four-channel digital-input Class-D audio amplifier that implements 1L modulation only requiring one inductor per BTL channel reducing system size and cost by removing four inductors compared to a traditional solution. Additionally, 1L modulation lowers switching losses compared to traditional Class-D modulation schemes.
The TAS6754-Q1 integrates DC and AC Load Diagnostics to determine the status of the connected loads. During audio playback this status can be monitored through output current sense which is available for each channel and reports the measurement to a host processor through TDM with minimal delay. The device monitors the output load condition while playing audio through real-time load diagnostics independent of the host and audio input.
The TAS6754-Q1 device features an additional low latency signal path for each channel, providing up to 70% faster signal processing at 48kHz which enables time-sensitive Active Noise Cancellation (ANC), Road Noise Cancellation (RNC) applications.
The device supports global temperature, channel temperature and PVDD values via I2C readout for easy system level thermal management.
The device is offered in a 56 pin HSSOP package with the exposed thermal pad up.
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Technische Dokumentation
Typ | Titel | Datum | ||
---|---|---|---|---|
* | Data sheet | TAS6754-Q1 1L Modulation, 2MHz Digital Input 4-Channel Automotive Class-D Audio Amplifier with Current Sense and Real-time Load Diagnostics datasheet | PDF | HTML | 16 Dez 2024 |
Technical article | Shrinking automotive audio system designs with Class-D amplifier 1L modulation | PDF | HTML | 18 Dez 2024 |
Design und Entwicklung
Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.
TAS6754Q1EVM — TAS6754-Q1 evaluation module
PUREPATHCONSOLE — PurePath™ Console – grafische Entwicklungssuite für Design und Entwicklung von Audiosystemen
TAS6754-Q1-SW — TAS6754-Q1 PPC3 GUI
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Gehäuse | Pins | CAD-Symbole, Footprints und 3D-Modelle |
---|---|---|
HSSOP (DKQ) | 56 | Ultra Librarian |
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