TAS5705PAP - 20W Stereo Class-D Amplifier | Texas Instruments
MPN: TAS5705PAP ✓ Hoạt độngTAS5705PAP Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho TAS5705PAP — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với TAS5705PAP (cùng hình factor và footprint) — khác nhau ở Supply Voltage Range.
TAS5701PAP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TAS5701PAPRG4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TAS5705PAP Tỷ lệ tối đa & tính chất điện
| 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 |
| Hộp | HTQFP (PAP), 64 pins |
| Package Body Size | 10 mm x 10 mm |
| Kiểu lắp đặt | Surface Mount |
| Product Description | 20-W stereo digital audio power amplifier with EQ and DRC |
Hướng dẫn cấu hình chân TAS5705PAP 10 mm x 10 mm
Cấu hình chân cho TAS5705PAP (10 mm x 10 mm gói). Thành phần số hiệu này có chân đầu vào, đầu ra và nguồn cung cấp. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết cấu hình chân bù, bù trừ và chân kích hoạt. Hoàn hảo cho điều kiện tín hiệu và mạch khuếch đại.
Không có dữ liệu chân cụ thể sẵn có cho TAS5705PAP.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TAS5705PAP phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TAS5705PAP — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Verified TAS5705 feature set (vsTAS5701PAP)
- Documented supply range (vsTAS5701PAPRG4)
- Defined output-processing functions (vsTAS5701PAP)
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
