300W 立体声、400W 单声道、25V 至 52.5V 电源电压、PWM 输入 D 类音频放大器
| Audio input type | PWM |
| Architecture | Class-D |
| Speaker channels (Max) | 4 |
| Power stage supply (Max) (V) | 52.5 |
| Power stage supply (Min) (V) | 25 |
| Load (Min) (ohms) | 4 |
| Output power (W) | 300 |
| SNR (dB) | 103 |
| THD + N @ 1 kHz (%) | 0.03 |
| Iq (Typ) (mA) | 24.8 |
| Control interface | Hardware |
| Closed/open loop | Closed |
| Analog supply (Min) (V) | 10.8 |
| Analog supply (Max) (V) | 13.2 |
| PSRR (dB) | 80 |
| Operating temperature range (C) | 0 to 70 |
- PurePath? HD Enabled Integrated Feedback Provides:
- Signal Bandwidth up to 80 kHz for High-Frequency Content From HD Sources
- Ultralow 0.03% THD at 1 W Into 4 Ω
- Flat THD at All Frequencies for Natural Sound
- 80-dB PSRR (BTL, No Input Signal)
- >100-dB (A-weighted) SNR
- Click- and Pop-Free Start-Up
- Multiple Configurations Possible on the Same PCB With Stuffing Options:
- Mono Parallel Bridge-Tied Load (PBTL)
- Stereo Bridge-Tied Load (BTL)
- 2.1 Single-Ended Stereo Pair and Bridge-Tied Load Subwoofer
- Quad Single-Ended Outputs
- Total Output Power at 10% THD+N
- 400 W per Channel in Mono PBTL Configuration
- 300 W per Channel in Stereo BTL Configuration
- 145 W per Channel in Quad Single-Ended Configuration
- High-Efficiency Power Stage (>88%) With 60-mΩ Output MOSFETs
- Two Thermally Enhanced Package Options:
- PHD (64-Pin QFP)
- DKD (44-Pin PSOP3)
- Self-Protection Design (Including Undervoltage, Overtemperature, Clipping,
and Short-Circuit Protection) With Error Reporting - EMI Compliant When Used With Recommended System Design
- APPLICATIONS
- Mini Combo System
- AV Receivers
- DVD Receivers
- Active Speakers
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The TAS5631B is a high-performance PWM input class-D amplifier with integrated closed-loop feedback technology (known as PurePath HD technology) with the ability to drive up to 300 W (1) stereo into 4-Ω to 8-Ω speakers from a single 50-V supply.
PurePath HD technology enables traditional AB-amplifier performance (<0.03% THD) levels while providing the power efficiency of traditional class-D amplifiers.
Unlike traditional class-D amplifiers, the distortion curve does not increase until the output levels move into clipping.
PurePath HD technology enables lower idle losses, making the device even more efficient.
