175-W stereo, 350-W mono, 12- to 38-V supply, digital input Class-D Smart Audio Amplifier
Product details
Parameters
Package | Pins | Size
Features
- Flexible Audio Inputs
- I2S, TDM, Left-Justified, Right-Justified
- 32 kHz, 44.1 kHz, 48 kHz, 96 kHz
- Supports 3-Wire Digital Input (No MCLK)
- Total Output Power at 10% THD+N
- 175-W Stereo into 4 Ω in BTL Configuration
- 220-W Stereo into 3 Ω in BTL Configuration
- 350-W Mono into 2 Ω in PBTL Configuration
- Total Output Power at 1% THD+N
- 140-W Stereo into 4 Ω in BTL Configuration
- 175-W Stereo into 3 Ω in BTL Configuration
- 285-W Mono into 2 Ω in PBTL Configuration
- Advanced Integrated Closed-Loop Design
- Ultra Low 0.01% THD+N at 1 W Into 4 Ω
- <0.01% THD+N to Clipping
- 60 dB PSRR (BTL, No Input Signal)
- <95 µV Output Noise (A-Weighted)
- >108 dB SNR (A-Weighted)
- Fixed-Function Processing Features
- SmartEQ (Up To 15x BiQuads Per Channel)
- Crossover EQ (2x 5 BiQuads)
- 3-Band Advanced DRC + AGL
- Dynamic EQ and SmartBass
- Sample Rate Conversion
- Control Features
- I2C Software Mode Control
- Address Select Pin
- 90% Efficient Class-D Operation (4 Ω)
- Wide 12-V to 36-V Supply Voltage Operation
- Integrated Protection with Error Reporting: Undervoltage, Cycle-by-cycle Current Limit, Short Circuit, Clipping detection, Overtemperature Warning and Shutdown and DC Speaker Protection
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Description
TAS3251 is a digital-input, high-performance Class-D audio amplifier that enables true premium sound quality with Class-D efficiency. The digital front-end features a high-performance Burr-Brown™ DAC with integrated DSP for advanced audio processing, including SmartAmp and SmartEQ. The first high-power single-chip solution reduces overall system solution size and cost. The DSP is supported by TI PurePath™ Console Graphical tuning software for quick and easy speaker tuning and control. The Class-D power stage features advanced integrated feedback and proprietary high-speed gate drive error correction for ultra-low distortion and noise across the audio band. The device operates in AD-mode and can drive up to 2 x 175 W into 4 Ω load and 2 x 220 W into 3 Ω load.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | TAS3251 175-W Stereo, 350-W Mono Ultra-HD Digital-Input Class-D Amplifier with Advanced DSP Processing datasheet (Rev. B) | May 28, 2020 |
| Application note | TAS3251 process flows (Rev. A) | Jan. 22, 2019 | |
| User guide | TAS3251 Evaluation Module (Rev. B) | Jan. 10, 2019 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Software development
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Features
- Calculate LC filter inductor and capacitor values quickly
- Select from 4 different Class-D filter types
- Tune frequency response with corner frequency and quality factor (Q) inputs
- Verify and graph filter response with multiple speaker loads
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| HSSOP (DKQ) | 56 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
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Support & training
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