TAS6884-Q1
- AEC-Q100 qualified for automotive applications
- Temperature grade 1: –40°C to +125°C, TA
- General operation
- 4.5V to 48V supply voltage, 50V load dump
- Support for 1.8V and 3.3V I/O
- I2C control with 8 address options
- <2W idle power loss at 14.4V, <8µA max VBAT+PVDD shutdown loss
- Integrated DSP processing
- Class-H supply voltage control
- Thermal monitoring and foldback
- Clip detection, PVDD monitoring and foldback
- Output current sensing by channel using
I2S/TDM
- No need for external circuitry
- Real-time load diagnostics
- Monitor output conditions Open load, Shorted load while playing audio
- Real-time temperature monitor for each channel
- DC and AC Standby load diagnostics
- Audio inputs
- 2-4 channel I2S or 4-16 channel TDM input
- Input sample rates: 44.1, 48, 96, 192kHz
- Low latency <100µs at 96k sample rate
- Audio outputs
- 384kHz to 2MHz configurable output switching frequency
- Up to 13A channel output current
- 400VA peak BTL output power
- 136W (48V, 8Ω, 1% THD+N, BTL)
- 250W (48V, 4Ω, 1% THD+N, BTL)
- 418W (45V, 2Ω, 1% THD+N, PBTL)
- Audio Performance
- THD+N 0.03% (8Ω, 1W, 1kHz)
- 111dB SNR
- 37µV (14.4V), 80µV (45V) output noise
- Protection
- Output short protection
- DC offset, undervoltage and overvoltage
- Configurable overtemperature warning and individual channel shutdown
- I2C temperature and supply voltage readout
- Easily meet CISPR25L5 EMC specification
- Advanced spread-spectrum
The TAS6884-Q1 is a four-channel, digital-input, high-voltage, Class-D audio amplifier that supports up to 48V supply voltage. The device provides four channels at 155W (48V, 8Ω, 1% THD, BTL) and 250W (48V, 4Ω, 1% THD, BTL).
The TAS6884-Q1 integrates DC and AC load diagnostics to determine the status of the connected loads before enabling the output stage. During audio playback, the status can be monitored through the output current sense and temperature of each channel 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 using real-time load diagnostics which operate independently from the host and audio input. To optimize system efficiency, the integrated DSP of the TAS6884-Q1 enables Class-H envelope tracking control, eliminating the need for the development of complex tracking software and external microcontroller.
The TAS6884-Q1 device features an additional low-latency signal path for each channel, providing up to 70% faster signal processing at 48kHz and support an audio signal path latency of < 100µs at 96kHz sample rate, which enables time-sensitive Active Noise Cancellation (ANC), Road Noise Cancellation (RNC) applications.
The TAS6884-Q1 is offered in a 64-pin QFP package with the exposed thermal pad up, TAS6884-Q1 is pin-to-pin compatible with TAS6684A-Q1.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TAS6884-Q1 48V, 13A Digital Input 4-Channel Automotive Class-D Audio Amplifier With Current Sense and Real-time Load Diagnostics datasheet | PDF | HTML | 2026/8/26 |
設計與開發
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TAS6884-Q1-DESIGN — TAS6884-Q1 documents
TAS6884Q1EVM-DOC-CERT — TAS6884Q1EVM EU Declaration of Conformity (DoC)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| — (—) | — |
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