TAS5706PAP - 20W Stereo I2S Class D Amplifier | TI
料号： TAS5706PAP ✓ 量产中TAS5706PAP 概述
A Class D audio power amplifier is a switching-based amplifier that delivers audio through a high-efficiency output stage. Its hierarchy places it within digital audio amplifiers, then audio amplifiers, then analog and mixed-signal integrated circuits. The TAS5706PAP combines a digital serial-audio input interface, programmable signal routing, speaker equalization, and dynamic range control in one device. This integration reduces the need for separate digital signal processing in systems requiring local audio conditioning.
Three headline features define the device: up to 20 W of stereo output power, an I2S-compatible digital audio interface, and closed-loop Class D amplification. The amplifier can route as many as four discrete audio channels to its internal outputs, while its speaker EQ and DRC functions add system-level acoustic processing. The 64-pin HTQFP package supports compact surface-mount implementation in consumer audio and communication equipment.
The TAS5706PAP accepts serial digital audio data from digital audio processors and MPEG decoders. Its programmable data path provides flexible channel routing, and two serial data inputs allow a system to handle multiple discrete channels. Because the processing and output functions are integrated, a designer can place EQ and dynamic range control immediately before the power-conversion stage instead of implementing those operations in an external processor.
Typical applications include powered speakers, compact stereo audio systems, soundbars, automotive or portable audio products, and embedded multimedia equipment. The closed-loop output architecture is particularly appropriate for bridged-tied speaker configurations where the amplifier must support the speaker load while maintaining the required output-power level. Systems should also account for the device's digital audio configuration and power-delivery requirements during board layout.
The primary design consideration is preserving the integrity of the I2S clock and data signals while providing clean, stable power to the Class D output stage. Layout should minimize high-current output-loop area, provide appropriate supply and ground-return paths, and separate sensitive digital inputs from switching-node energy. Speaker filtering and output-network implementation must also be selected for the intended load and acoustic response.
This page consolidates the verified manufacturer description, distributor package information, technical source links, application guidance, and honest replacement analysis for TAS5706PAP. It also identifies where verified public data is limited, avoiding invented electrical details or unsupported drop-in substitutions.
直接替换替代料： TAS5706PAP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料TAS5706PAP 最大额定值与电气特性
| Output Power | 20 W |
| Channel Configuration | 2-channel stereo or 4-channel quad |
| Amplifier Class | Class D |
| Digital Audio Interface | I2S |
| Feedback Architecture | Closed-loop |
| Speaker Equalization | Supported |
| Dynamic Range Control | DRC supported |
| Maximum Discrete Audio Channels | Up to 4 channels |
| Serial Data Inputs | 2 inputs |
| Programmable Data Path | Supported |
| 输出配置 | Stereo bridged-tied speaker drive |
| Processor Compatibility | Digital audio processors and MPEG decoders |
| Input Clock Support | Wide range of input data and clock rates |
| 封装 | 64-pin HTQFP (PAP), 10 x 10 mm |
| 引脚数量 | 64 pins |
| 工作温度 | 0 C to 85 C |
| 安装类型 | Surface mount |
TAS5706PAP 64-pin htqfp (pap), 10 x 10 mm 引脚配置指南
TAS5706PAP（64-pin htqfp (pap), 10 x 10 mm 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： TAS5706PAP.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TAS5706PAP 适用于 6 应用s: Powered Stereo Speaker, Compact Multimedia Speaker, Soundbar Audio Channel, Automotive Audio Module, Portable Audio Product, Digital Audio Communication Terminal.
Powered Stereo Speaker
The TAS5706PAP fits a powered stereo speaker that receives digital audio and drives two bridged-tied speakers. Its 20 W stereo output capability, closed-loop Class D architecture, and 64-pin HTQFP package provide a compact implementation without requiring separate speaker EQ and DRC blocks. The amplifier accepts I2S data and can process up to four discrete channels, allowing a product designer to use a single digital audio path for multiple routing configurations. During implementation, the Class D output network, speaker impedance, supply-current capability, and thermal path must be designed together. Exact filter component values and maximum distortion conditions should be taken from the manufacturer datasheet because they were not included in the verified excerpts.
Compact Multimedia Speaker
The TAS5706PAP is appropriate for compact multimedia speakers that consume I2S audio from a host processor and require local volume or speaker-response processing. Texas Instruments identifies support for digital audio processors and MPEG decoders, together with a programmable data path and two serial data inputs. This makes the device useful where several audio channels must be conditioned before reaching the internal Class D outputs. The 20 W stereo rating suits space-constrained powered-speaker products, while integrated speaker EQ and DRC can simplify the signal chain. Designers should still verify the intended speaker load, output-filter design, available supply voltage, and enclosure-driven thermal conditions before releasing production hardware.
Soundbar Audio Channel
The TAS5706PAP can serve as a digital audio amplification channel in a soundbar or compact home-audio enclosure. Its I2S input avoids requiring a separate analog audio input stage, while the programmable data path supports flexible routing of discrete channels to the internal outputs. Integrated speaker EQ and DRC are valuable when each driver requires local response shaping or level control, and the 20 W stereo capability addresses typical compact speaker power levels. The main engineering tasks are maintaining clean digital-clock routing, controlling Class D switching energy, and selecting a filter network compatible with the speaker impedance. The supplied information does not establish universal support for every soundbar topology, so the final design should be validated at the system level.
Automotive Audio Module
The TAS5706PAP can be evaluated for automotive or transport audio modules that use a digital audio source and require a compact stereo power stage. Its 20 W Class D output, closed-loop feedback, I2S interface, speaker EQ, and DRC provide a combination commonly needed in local sound systems. The device operates from 0 C to 85 C according to the verified TI ordering information, but no AEC-Q100 qualification was supplied, so it must not be assumed suitable for every automotive requirement. Designers should verify the complete automotive specification, transient requirements, EMC expectations, operating-temperature needs, and loudspeaker network. These qualification and protection details are unavailable in the provided excerpts and should be checked in the authoritative datasheet.
Portable Audio Product
The TAS5706PAP suits portable or connected-audio products that require efficient digital amplification with integrated acoustic processing. The Class D architecture and 20 W stereo rating provide useful output capability, while I2S input supports integration with a digital audio processor rather than an analog signal chain. Speaker EQ and DRC can compensate for enclosure and driver variation in a space-constrained product. Because the verified excerpts do not provide the full supply-voltage range, idle current, efficiency curve, or thermal resistance, battery life and enclosure heating cannot be calculated from the available data. Those values must be confirmed from the manufacturer datasheet before selecting the amplifier for a battery-powered design.
Digital Audio Communication Terminal
The TAS5706PAP can be incorporated into networked or communication terminals that provide local loudspeaker playback from an I2S-capable digital audio processor. Its two serial data inputs and support for up to four discrete channels provide flexibility when a terminal handles more than one local audio stream or channel-mapping requirement. The 20 W stereo Class D output then drives the speaker network with closed-loop operation, while integrated EQ and DRC provide local processing. Practical implementation requires careful separation of clock, data, and return paths from switching outputs, along with robust supply distribution. Networked-device timing and functional-safety requirements are outside the supplied data, so engineers must validate those requirements independently rather than infer support from the amplifier description.
工程参考数据： TAS5706PAP ——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 |
|---|---|
| Package | 64-pin HTQFP (PAP), 10 x 10 mm |
| Brand | Texas Instruments |
| Output Power | 20 W |
| Channel Configuration | 2-channel stereo or 4-channel quad |
| Amplifier Class | Class D |
| Digital Audio Interface | I2S |
| — | Closed-loop |
| Signal Processing | Speaker EQ and DRC |
| Discrete Audio Channels | Up to 4 channels |
| Operating Temperature | 0 C to 85 C |
关键差异点
- Integrated digital speaker processing （对比 A generic 20 W Class D output stage)
- Multi-channel digital audio flexibility （对比 A conventional stereo I2S input amplifier)
- Closed-loop output architecture （对比 An open-loop Class D output stage)
- Space-efficient system integration （对比 Discrete codec, DSP, and amplifier signal chain)
设计说明
Route the I2S clock, data, and associated returns as controlled-impedance digital signals and keep them away from the Class D output-switching nodes. Place local supply bypassing at the closest available device pins, and provide a low-impedance ground reference. Exact capacitor values and permitted layouts are not present in the verified excerpts, so follow the manufacturer layout recommendations in the authoritative datasheet before release.
Design the power path for the 20 W stereo Class D output rather than assuming a generic low-power regulator is sufficient. Use wide, short supply and return paths, minimize loop area between the device, local decoupling, and output-network components, and verify source-current capability under the intended speaker load. The supplied excerpts do not establish the exact supply-voltage range, so it must be taken from the manufacturer datasheet.
Keep the Class D output filter, speaker connections, and high-current switching paths confined to a clearly defined power region. Avoid routing sensitive digital-audio signals beneath or parallel to these nets. Validate the completed layout for conducted and radiated emissions because the final result depends on component placement, output-filter implementation, grounding, speaker cable geometry, and enclosure construction.
Estimate dissipation from the actual supply voltage, output power, amplifier efficiency, and ambient temperature before defining the PCB copper and enclosure strategy. The verified material gives a 20 W output rating but no thermal-resistance, efficiency-curve, or maximum-power-dissipation values, so a numerical junction-temperature calculation would be speculative. Use the manufacturer thermal data and the highest expected operating loss to size the thermal path.
Do not equate an ordering suffix change with a functional drop-in substitution. The verified material mentions TAS5706PAPR alongside TAS5706PAP, but it does not establish all assembly differences, and it provides no qualified cross-brand equivalent. Confirm the exact pinout, programming model, supply requirements, speaker-load limits, and package handling requirements against the current TI ordering information before approving a substitution.
合规信息
The supplied verified excerpts identify the device and operating range but do not provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. These fields remain unknown rather than being inferred.
