TAS5012PFB - Stereo 3.3V Audio PWM Processor | Texas Instruments
MPN: TAS5012PFB ✗ Cuối đờiTAS5012PFB Tóm tắt
A true digital audio amplifier separates digital signal processing from power amplification. The TAS5012 accepts a serial PCM audio stream, performs the required digital audio processing, and generates a differential 3.3 V PWM stream. A compatible external power-output device converts that PWM stream into a high-current audio signal capable of driving a loudspeaker load. This architecture reduces analog signal-path distortion while allowing system behavior to be controlled digitally.
Key characteristics include support for two audio channels, a 102 dB dynamic-range specification, and THD+N below 0.06%. The processor supports digital interfaces identified as DSP and I2S, making it suitable for audio systems receiving serial PCM data from a digital source. Its stated power efficiency of 90% into an 8-ohm load describes a complete true digital audio amplifier system using the processor with its compatible PWM power stage, rather than an isolated measurement of the processor alone.
The 24-bit input capability and support for 176.4 kHz and 192 kHz sampling make the TAS5012 suitable for high-resolution consumer audio, CD-rate playback, digital mixing equipment, powered speakers, and automotive audio systems. Its 48-TQFP package provides a practical solution for multichannel digital audio designs where external amplification and digital control are preferred over a conventional analog output amplifier.
Implementation requires careful selection of the companion PWM power device, differential output routing, clocking, digital interface timing, grounding, and decoupling. The processor and output stage must be designed together because their PWM signaling, timing, and load capabilities determine the achievable output power and distortion performance.
This page consolidates the key electrical characteristics, practical applications, package information, sourcing guidance, and same-footprint replacement options for engineers evaluating the TAS5012PFB. It also provides a structured framework for comparing the processor with other true digital audio amplifier signal-processing devices before committing a high-volume PCB design.
Bộ thay thế dễ dàng lắp đặt cho TAS5012PFB — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
TAS5012PFBR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TAS5010PFB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →TAS5012IPFB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
TAS5012PFB Tỷ lệ tối đa & tính chất điện
| Product Type | True Digital Audio Amplifier Signal Processor |
| Audio Channels | 2 channels |
| Điện áp cung cấp hoạt động | 3 V to 3.6 V |
| Dynamic Range | 102 dB |
| Total Harmonic Distortion plus Noise | < 0.06% |
| Input Data Resolution | 24 bit |
| Supported Sampling Rates | 176.4 kHz and 192 kHz |
| Digital Interface | DSP and I2S |
| Processor Function | Audio Signal Processor |
| Output Interface | 3.3 V differential PWM audio stream |
| System Power Efficiency | 90% into an 8 ohm load |
| Khoảng nhiệt độ hoạt động | 0 °C to 70 °C |
| Hộp | 48-TQFP, 7 mm x 7 mm |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tray |
| Supply Category | EAR99 |
| Country of Origin | Taiwan |
Hướng dẫn cấu hình chân TAS5012PFB 48-tqfp, 7 mm x 7 mm
Cấu hình chân cho TAS5012PFB (48-tqfp, 7 mm x 7 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 TAS5012PFB.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
TAS5012PFB phù hợp cho 6 Áp dụngs: High-Resolution Powered Speaker, Digital Audio Mixer, Consumer Audio Amplifier, Automotive Audio System, Digital Headphone Amplifier, Digital Recording and Playback.
High-Resolution Powered Speaker
The TAS5012PFB fits a high-resolution powered-speaker architecture because it accepts 24-bit PCM audio, supports 176.4 kHz and 192 kHz sampling, and processes two channels digitally. Place the processor between the source and a compatible PWM power-output IC, then route its differential 3.3 V PWM outputs to the external stage. This preserves the digital signal path until power amplification and supports the manufacturer’s stated 90% system efficiency into an 8-ohm load when the complete reference design is followed.
Được đề xuất
Digital Audio Mixer
The TAS5012PFB can serve as the digital audio-processing element in a stereo mixer that receives PCM channels from a digital source and drives a compatible PWM output stage. Its two-channel architecture supports balanced stereo processing, while the 102 dB dynamic-range specification provides substantial headroom for high-quality playback. Digital interface timing, clock generation, and grounding remain critical because incorrect serial synchronization can corrupt audio even when the output stage operates correctly.
Được đề xuất
Consumer Audio Amplifier
For compact consumer audio products, the TAS5012PFB provides a digital route from the source interface to a loudspeaker power stage without a conventional analog output buffer. Its 48-TQFP package is practical for multi-layer consumer boards, and the processor supports both DSP and I2S source formats. The 3 V to 3.6 V operating range must be respected, while the 0 °C to 70 °C specification suits indoor products rather than harsh uncontrolled environments.
Được đề xuất
Automotive Audio System
The TAS5012PFB is identified for automotive-audio applications and can support a digitally processed stereo loudspeaker channel. Its true digital architecture moves signal processing upstream from the power stage and can simplify analog routing while supporting 24-bit source data. However, the stated 0 °C to 70 °C operating range and unknown AEC-Q100 status require confirmation for an actual vehicle platform. Production programs should also address obsolete lifecycle status and long-term supply continuity.
Được đề xuất
Digital Headphone Amplifier
The TAS5012PFB can form the signal-processing portion of a digitally controlled headphone amplifier when the chosen external PWM output stage can support the required load and filtering network. Using two PWM outputs preserves independent left and right channels, while digital volume or processing functions can be implemented ahead of the power stage. The design must account for PWM ripple, output-filter component selection, headphone impedance, EMI, and the distinction between system efficiency and processor efficiency.
Được đề xuất
Digital Recording and Playback
The TAS5012PFB is applicable to recording-and-playback products that retain a digital audio path from a digital source through processing to a PWM power stage. Its 102 dB dynamic range and THD+N below 0.06% suit high-fidelity playback, while DSP and I2S interfaces provide compatibility with digital converters such as the PCM1725. The implementation should use a low-jitter clock arrangement, controlled layout, and verified interface timing to prevent data or clock errors from affecting the recording path.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho TAS5012PFB — 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 | TAS5012PFBR | TAS5010PFB | TAS5012IPFB |
|---|---|---|---|---|
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) | 48-TQFP (7x7) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Type | True Digital Audio Amplifier Signal Processor | True Digital Audio Amplifier Signal Processor | Digital Audio Processor | TAS5012-family Digital Audio Processor |
Bảo phân biệt quan trọng
- High-resolution stereo digital processing (vsTAS5010PFB)
- Low total harmonic distortion plus noise (vsTAS5012PFBR)
- Complete digital loudspeaker signal path (vsTAS5558DCA)
- System-level efficiency target (vsTAS5012IPFB)
Ghi chú thiết kế
Route the TAS5012PFB clock, serial data, and PWM outputs as short, controlled-impedance nets, especially when operating at 176.4 kHz or 192 kHz. Place input, output, and bypass capacitors close to their associated pins and keep switching return currents confined to the external PWM power stage. Follow the pin-configuration table and application layout in the manufacturer datasheet rather than inferring connections from the package drawing.
Design the 3 V to 3.6 V supply rail for both processor demand and the interface requirements of the companion power-output device. The manufacturer’s 90% efficiency figure applies to the complete true digital audio amplifier system into an 8-ohm load, not to the TAS5012PFB alone. Validate supply ripple, startup behavior, sequencing, and current margin under worst-case audio conditions, and decouple the processor separately from high-current output-stage paths.
Treat digital clocking as a signal-integrity subsystem. Route the master clock and serial audio lines away from PWM outputs and power-stage switching nodes, use a continuous ground reference, and verify timing at the highest supported sampling rate. A clean analog power stage cannot compensate for bit errors, clock jitter, or setup-and-hold violations at the processor inputs.
Do not assume that a component listed as an alternative is a PCB drop-in replacement. TAS5558DCA and TAS5558DCAR appear in the alternative-part list, but the available information does not establish a matching 48-TQFP footprint or pin-to-pin assignments. Confirm the package dimensions, pin names, control interface, PWM outputs, and external power-stage requirements in the manufacturer datasheet before approving a substitution.
Most system heat is generated in the external PWM power-output device rather than in the TAS5012PFB processor, but the complete assembly still requires thermal review. Estimate power loss in the power stage using its conduction and switching losses at maximum channel output, then verify the exposed-pad and board-copper treatment required by the manufacturer layout. Check the complete system at the highest ambient temperature expected by the enclosure.
Thông tin tuân thủ
The product record identifies the device as halogen-free compliant and lists EAR99 as its export classification. RoHS, REACH, lead-free, conflict-minerals, and AEC-Q100 status require confirmation from the current manufacturer declaration or product documentation.
