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TAS6754-Q1-DESIGN — TAS6754-Q1 Technical Documentation
TAS6754-Q1 Technical Documentation
TAS6754-Q1
Automotive, 19V, digital-input four-channel Class-D audio amplifier with 1L modulation
Data sheet
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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Technical documentation
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View all 4 | Type | Title | Date | ||
|---|---|---|---|---|
| * | 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 Dec 2024 |
| Technical article | 利用 D 類放大器 1L 調變技術，縮減汽車音訊系統設計尺寸 | PDF | HTML | 31 Dec 2024 | |
| Technical article | 클래스 D 증폭기 1L 변조로 차량용 오디오 시스템 설계 축소 | PDF | HTML | 31 Dec 2024 | |
| Technical article | Shrinking automotive audio system designs with Class-D amplifier 1L modulation | PDF | HTML | 18 Dec 2024 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
Evaluation board
TAS6754Q1EVM — TAS6754-Q1 evaluation module
The TAS6754-Q1 evaluation module (EVM) showcases the TAS6754-Q1, an automotive, four-channel, digital-input closed-loop class-D audio amplifier with 1L modulation that removes 1x inductor per channel and reduces inductor costs by 50% for four channels. The TAS6754-Q1 has an integrated DSP that (...)
Application software & framework
PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development
PurePath™ Console is a highly integrated and easy-to-use audio development suite designed specifically to simplify the evaluation, configuration and debug process associated with the development of audio products. Watch how easy it is to use the PurePath™ Console 3 software.
PurePath Console’s (...)
PurePath Console’s (...)
Support software
TAS6754-Q1-SW — TAS6754-Q1 PPC3 GUI
TAS6754-Q1 PPC3 GUI
Supported products & hardware
Products
Speaker amps
Hardware development
Evaluation board
Simulation tool
PSPICE-FOR-TI — PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| HSSOP (DKQ) | 56 | Ultra Librarian |
Ordering & quality
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