TAS5705PAP - 20W Stereo Class-D Amplifier | Texas Instruments
MPN： TAS5705PAP ✓ 啟用中TAS5705PAP 概覽
A Class-D audio power amplifier is a switching-based amplifier that delivers speaker output at high efficiency compared with conventional linear audio amplifiers. The TAS5705 belongs to the hierarchy digital audio power amplifier, Class-D amplifier, audio amplifier, amplifier IC and power-management semiconductor. Its digital signal path allows system-level processing to be integrated closer to the speaker output while retaining a compact surface-mount implementation.
Verified product information identifies the TAS5705 as a 20 W stereo device with an 8 V to 23 V supply, digital input, open-loop Class-D architecture, speaker EQ and DRC. Distributor listings also describe the PAP configuration as a two-channel amplifier with stereo headphone and subwoofer features. These characteristics position it for consumer audio systems requiring a digital audio interface and local speaker-drive capability.
The open-loop Class-D topology delegates loop filtering to external components, allowing the analog filter design to be selected for the intended speaker bandwidth, output-power target and system cost. Integrated EQ and DRC provide tools for controlling tonal response and limiting output excursion, although exact processing configuration depends on the device registers and the associated control software or external digital processor.
Typical uses include compact stereo speakers, multimedia systems, sound bars, home-audio products and consumer audio receivers with a digital signal source. Digital input makes the device especially useful where the host processor already provides decoded PCM audio and system designers want to keep the audio signal in the digital domain until the final power-amplifier stage.
A key design consideration is that the external LC filter and speaker load directly affect achievable output power, distortion and stability. Layout should follow the manufacturer's recommended application circuit, keep switching-current paths compact and place the filter components close to the appropriate output pins.
This page consolidates verified manufacturer and distributor information, drop-in replacement candidates, package details and engineering guidance into one searchable reference for designers evaluating the TAS5705PAP in digital-input stereo audio systems.
直接替換替代品，適用於 TAS5705PAP — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TAS5705PAP （相同外形與佔位） — 差異在於 Supply Voltage Range.
TAS5701PAP
✅ 直接替換聯絡詢價
查看資料表 →TAS5701PAPRG4
✅ 直接替換📋 參考替代品（不在目錄中）
TAS5705PAP 最大額定值與電氣特性
| Channel Configuration | 2 channels, stereo |
| Output Power | 20 W stereo |
| Supply Voltage Range | 8 V to 23 V |
| Input Type | Digital input |
| Amplifier Topology | Open-loop Class-D |
| Speaker Output Type | Stereo bridge-tied |
| Speaker EQ | Supported |
| Dynamic Range Control | Supported |
| Audio Features | Stereo headphones and subwoofer functions indicated by distributor listing |
| 封裝 | HTQFP (PAP), 64 pins |
| Package Body Size | 10 mm x 10 mm |
| 安裝類型 | Surface Mount |
| Product Description | 20-W stereo digital audio power amplifier with EQ and DRC |
TAS5705PAP 10 mm x 10 mm 腳位配置指南
TAS5705PAP（10 mm x 10 mm 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： TAS5705PAP.
請參閱 資料表 以查看完整腳位配置。
典型應用
TAS5705PAP 適用於 6 應用s: Compact Stereo Speaker, Digital Sound Bar, Multimedia Speaker System, Home Audio Amplifier Module, Digital Active Speaker, Consumer Audio Receiver Output.
Compact Stereo Speaker
The TAS5705PAP fits compact stereo speakers whose source is already a digital audio stream because it accepts digital input and drives two bridge-tied channels at a verified 20 W stereo output class. The 8 V to 23 V supply range supports typical integrated amplifier rails, while the open-loop Class-D architecture allows the external filter to be selected around the intended speaker bandwidth. Speaker EQ and DRC provide system-level tonal control and excursion limiting. Engineers should verify continuous-power behavior, thermal rise and filter component tolerances before assigning full 20 W to every speaker.
推薦
Digital Sound Bar
A sound bar architecture benefits from the TAS5705PAP because decoded PCM audio can remain digital until the final Class-D output stage, reducing avoidable analog routing between the host processor and speakers. The device's verified 20 W stereo rating, digital input and integrated speaker EQ and DRC support compact left and right amplifier channels. Use the manufacturer-recommended external output filter and keep high-current switching loops small. Thermal analysis should include amplifier loss, supply efficiency and the enclosed sound-bar ventilation conditions rather than speaker power alone.
推薦
Multimedia Speaker System
The TAS5705PAP is appropriate for multimedia speakers driven by a digital host processor because the verified digital input avoids requiring a separate analog-input power-amplifier front end. Its stereo 20 W class output can support two bridge-tied speaker channels, while EQ and DRC enable consistent output behavior across different speaker sensitivities. The system designer must select the external Class-D filter, verify clocking and digital-audio format compatibility, and confirm that the 8 V to 23 V supply remains stable under dynamic speaker load.
推薦
Home Audio Amplifier Module
The TAS5705PAP can serve as the output stage of a modular home-audio amplifier when the upstream processor provides a compatible digital stream. Its two-channel 20 W stereo capability suits powered bookshelf speakers, small wireless speakers and compact active monitors. The open-loop Class-D design places filter design directly in the designer's control, enabling optimization for the selected speaker impedance and crossover behavior. EQ and DRC reduce the need for external processors, although firmware or control configuration must be included in the production design and tested for clipping and thermal performance.
推薦
Digital Active Speaker
An active speaker built around the TAS5705PAP can accept digital audio over a short internal connection from a wireless receiver, DSP or network-audio module. This eliminates an unnecessary analog conversion in the speaker enclosure and uses the amplifier's verified speaker EQ and DRC functions to manage gain and output excursion. The 8 V to 23 V operating range allows integration with common multi-cell or regulated supply arrangements. Design verification should include filter stability with the actual speaker cable, idle behavior, startup sequencing and protection against sustained near-clipping output.
推薦
Consumer Audio Receiver Output
The TAS5705PAP is suitable for the speaker-output stage of a compact consumer receiver when its host controller supplies decoded stereo audio digitally. The device's verified 20 W stereo rating targets typical domestic listening levels, and DRC can limit output excursions without requiring a separate analog limiter. Because the topology is open-loop Class-D, the external filter is a critical part of signal integrity and stability. Follow the manufacturer reference circuit, validate filter tolerance and speaker impedance, and confirm the amplifier and supply are thermally coupled to the enclosure rather than relying on nominal wattage alone.
推薦
推薦產品摘要
工程參考資料，適用於 TAS5705PAP — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TAS5701PAP | TAS5701PAPRG4 |
|---|---|---|---|
| Package | HTQFP (PAP), 64 pins, 10 mm x 10 mm | HTQFP (PAP), 64 pins | HTQFP (PAP), 64 pins |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Device Type | 20 W stereo digital audio power amplifier | Stereo digital audio Class-D power amplifier family member | Stereo digital audio Class-D power amplifier family member |
| Input Type | Digital input | Digital input family feature | Digital input family feature |
主要差異化特點
- Verified TAS5705 feature set (對比TAS5701PAP)
- Documented supply range (對比TAS5701PAPRG4)
- Defined output-processing functions (對比TAS5701PAP)
設計說明
Follow the manufacturer's recommended application circuit for the 64-pin PAP package. Keep high-current PVDD and output-current paths compact, provide a low-impedance ground reference and place the external Class-D filter components close to the corresponding output pins. The open-loop architecture makes the filter an integral part of the amplifier, so trace geometry and component placement should not be treated as optional fine-tuning.
Evaluate heat dissipation using the actual Class-D output filter, speaker impedance, supply voltage and maximum continuous signal level rather than the nominal 20 W stereo rating alone. Estimated: amplifier conduction and switching loss equals output power divided by the measured conversion efficiency, after which junction rise depends on the package thermal resistance and board copper. Those two required inputs are not present in the verified data, so a defensible thermal-rise value cannot be supplied here.
Do not assume that two amplifiers in the same product family are software- and pin-compatible merely because they use a similar package. Before replacing TAS5705PAP with TAS5701PAP or TAS5701PAPRG4, compare digital-audio formats, clocking, control registers, EQ and DRC resources, pin multiplexing, output-filter requirements and recommended PCB layouts. Also verify the 8 V to 23 V operating range against the replacement's complete electrical specification.
Design the supply for amplifier peak current as well as average output power. Estimated: the required supply-current capability is amplifier output power divided by supply voltage and conversion efficiency, so the 20 W stereo rating does not directly determine the input-current rating. Include startup inrush, dynamic-load headroom and local reservoir capacitance at the amplifier according to the application circuit before releasing the layout for production.
合規資訊
The verified search results do not contain explicit compliance declarations. RoHS, REACH, AEC-Q100, lead-free, halogen-free and conflict-minerals status must be confirmed from the manufacturer product documentation or the distributor parametric records.
