TAS6754QDKQRQ1 - Automotive 4-Ch Class-D Audio Amp | TI
料号： TAS6754QDKQRQ1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $10.68 | $10.68 |
| 10 | $9.6 | $96.00 |
| 100 | $8.55 | $855.00 |
| 500 | $7.9 | $3,950.00 |
| 1,000 | $7.25 | $7,250.00 |
TAS6754QDKQRQ1 概述
A Class-D audio amplifier is a switching amplifier that converts a digital or analog audio signal into a high-frequency pulse-width modulated square wave, which is then low-pass filtered to reconstruct the audio. Class-D topologies achieve high efficiency (typically 80-90%) because the output transistors operate as switches, minimizing power dissipation compared to linear Class-AB amplifiers. In automotive audio systems, this efficiency reduces heat-sinking requirements and extends the available audio power from the vehicle's electrical system.
Key features include four independent audio channels, 1L modulation that removes four inductors versus traditional designs, 2MHz switching for compact output filters, integrated current sense, and DC/AC real-time load diagnostics. The 19V rated supply is aligned with automotive audio power rails, and the AEC-Q100 Q1 suffix qualifies the device for automotive applications. The 56-pin HSSOP package supports surface-mount assembly with an exposed thermal pad for heat removal.
1L modulation is a proprietary Class-D scheme that uses a single inductor per bridge-tied-load channel, reducing system cost and size. The 2MHz switching rate moves the switching fundamental well above the audio band, simplifying the output low-pass filter and lowering out-of-band emissions. Integrated current sense and real-time load diagnostics monitor speaker health, enabling fault detection for shorts, opens, and degradation. The digital input accepts common automotive digital audio formats, eliminating the need for a separate DAC and analog front end.
Typical applications include automotive infotainment head units, external amplifier modules, EV pedestrian warning (AVAS), telematics/eCall audio, rear-seat entertainment, and commercial-vehicle audio. The device is especially suited for designs where four channels of clean audio must be delivered from a 19V rail with minimal inductor count and integrated diagnostic coverage.
When designing with the TAS6754QDKQRQ1, provide sufficient copper area on the exposed thermal pad and keep the output LC filter close to the device to minimize EMI. Verify the digital audio source timing and protocol against the datasheet before PCB layout.
直接替换替代料： TAS6754QDKQRQ1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TAS6754QDKQRQ1 （相同外形与封装尺寸） ——差异在于 Number of Channels, Package.
快速对比工具——选择替代料号进行并排对比：
TAS6424QDKQRQ1
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.45 / 个
查看数据手册 →TAS6424EQDKQRQ1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TAS6584QDKQRQ1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TAS6422QDKQRQ1
⚡ 相同封装 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TAS6422EQDKQRQ1
⚡ 相同封装 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TAS6754QDKQRQ1 最大额定值与电气特性
| Amplifier Type | Class-D audio amplifier |
| Number of Channels | 4 |
| Input Type | Digital input |
| Modulation | 1L modulation (one inductor per BTL channel) |
| 开关频率 | 2 MHz |
| 电源电压 | 19 V (automotive) |
| Current Sense | Integrated |
| Load Diagnostics | DC and AC real-time load diagnostics |
| 封装 | 56-HSSOP (DKQ) with exposed thermal pad |
| 引脚数 | 56 |
| 安装类型 | Surface Mount |
| AEC-Q100 | Qualified (Q1 suffix) |
| Datasheet Size | 59 pages, 2Mb PDF |
TAS6754QDKQRQ1 56-hssop (dkq) with exposed thermal pad 引脚配置指南
TAS6754QDKQRQ1（56-hssop (dkq) with exposed thermal pad 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： TAS6754QDKQRQ1.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TAS6754QDKQRQ1 适用于 6 应用s: Automotive Infotainment Head Unit, External Amplifier Module, EV Warning Sound System (AVAS), Telematics and eCall Audio, Rear-Seat Entertainment, Heavy-Duty Commercial Vehicle Audio.
Automotive Infotainment Head Unit
The TAS6754QDKQRQ1 drives 4 speaker channels in a car radio or infotainment system, using 1L modulation to reduce inductor count. Its 19V supply fits automotive battery rails, and integrated current sense/diagnostics enable speaker fault detection. Placed between the head-unit SoC and the speakers, it converts the digital audio stream to high-efficiency Class-D power. Use a 2MHz LC output filter and adequate copper for the exposed pad to keep EMI low.
推荐
External Amplifier Module
In a standalone booster amplifier, the TAS6754QDKQRQ1 accepts a digital audio input and drives aftermarket speakers. Its 2MHz switching frequency allows compact output filters, and DC/AC load diagnostics report speaker health over the vehicle bus. The device is powered from a 19V boost or battery rail; add a 5V LDO for the digital interface. This module is suitable for premium audio upgrades where 4-channel output and low component count matter.
推荐
EV Warning Sound System (AVAS)
Electric vehicles require external pedestrian warning tones. The TAS6754QDKQRQ1 can amplify synthesized AVAS signals from an MCU with low latency and high efficiency. The integrated real-time load diagnostics ensure the external speaker is connected and functional, supporting OBD requirements. With 19V operation and 2MHz switching, it fits small ECU enclosures. The digital input simplifies connection to the vehicle audio bus or MCU.
推荐
Telematics and eCall Audio
In telematics control units, the TAS6754QDKQRQ1 provides hands-free audio amplification for emergency calls and voice prompts. Its high PSRR and low EMI Class-D output help pass automotive EMC tests. The 4-channel capability allows front/rear speaker zones and a dedicated chime channel. Use the current-sense outputs to implement speaker diagnostics required for eCall self-test.
推荐
Rear-Seat Entertainment
For rear-seat displays and headrest monitors, the TAS6754QDKQRQ1 delivers multi-channel audio from a digital source such as a SoC or HDMI audio extractor. The 19V rail can be generated from a USB-PD or automotive buck-boost. 1L modulation reduces the number of inductors, saving PCB area inside slim seatback housings. AC load diagnostics help detect damaged speaker jacks.
推荐
Heavy-Duty Commercial Vehicle Audio
Trucks and construction vehicles use 12V/24V electrical systems, but audio amplifiers often run from a regulated 19V rail. The TAS6754QDKQRQ1 accepts a digital audio bus from an RDS tuner or telematics gateway and drives 4 speakers in the cabin. Its real-time load diagnostics are useful for fleet maintenance, detecting open or shorted speakers without extra wiring. A wide-temperature version supports under-dash mounting.
推荐
推荐产品汇总
工程参考数据： TAS6754QDKQRQ1 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TAS6424QDKQRQ1 | TAS6424EQDKQRQ1 | TAS6584QDKQRQ1 | TAS6422QDKQRQ1 |
|---|---|---|---|---|---|
| Package | 56-HSSOP (DKQ) | 56-HSSOP (DKQ) | 56-HSSOP (DKQ) | 56-HSSOP (DKQ) | 56-HSSOP (DKQ) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 4 | 2 |
| Switching Frequency | 2 MHz | 2 MHz | 2 MHz | 2 MHz | 2 MHz |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified | Qualified |
| Input Type | Digital | Digital | Digital | Digital | Digital |
关键差异点
- 1L modulation reduces inductor count （对比 Traditional Class-D amplifiers)
- Integrated current sense and real-time load diagnostics （对比 TAS6424QDKQRQ1)
- 4-channel capability （对比 TAS6422QDKQRQ1)
设计说明
Place the output LC filter as close as possible to the TAS6754QDKQRQ1 outputs. The 2MHz switching frequency means the filter components should have low ESL/ESR and short traces. A solid ground plane under the amplifier and filter is essential to minimize loop inductance and reduce EMI. Route the digital audio input away from the output stage to avoid coupling.
The exposed thermal pad must be soldered to a copper area of at least 1 square inch on the PCB. With a 19V supply and Class-D efficiency around 85-90%, the dissipated power at 4 channels can still be significant. Add vias under the thermal pad to the inner ground planes. If the design drives continuous high power, consider additional copper in the enclosure for heat spreading.
The 2MHz switching edges generate broadband EMI. Use a properly damped output filter with ferrite beads if needed, and keep the filter ground return short. Follow TI's EVM layout guidelines for the TAS6754-Q1 to pass automotive CISPR 25 requirements. Adding a small RC snubber across the output nodes can reduce ringing without sacrificing audio performance.
合规信息
AEC-Q100 qualified per Q1 suffix in part number. RoHS/REACH status not stated in verified web data as of 2026-08-28.
