20W 立体声、10V 至 26V 电源电压、PWM 单端输入 D 类音频放大器
| Audio input type | PWM |
| Architecture | Class-D |
| Speaker channels (Max) | 4 |
| Power stage supply (Max) (V) | 26 |
| Power stage supply (Min) (V) | 10 |
| Load (Min) (ohms) | 4 |
| Output power (W) | 20 |
| SNR (dB) | 99 |
| THD + N @ 1 kHz (%) | 0.004 |
| Iq (Typ) (mA) | 35 |
| Control interface | Hardware |
| Closed/open loop | Closed |
| Analog supply (Min) (V) | 10 |
| Analog supply (Max) (V) | 26 |
| Operating temperature range (C) | -40 to 85 |
- Supports Multiple Output Configurations
- 2×20-W into a 8-Ω BTL Load at 18 V
- 4×10-W into a 4-Ω SE Load at 18 V
- 2×10W (SE) + 1×20W (BTL) at 18 V
- Thermally Enhanced Package
- DCA (56-pin HTTSOP)
- Wide Voltage Range: 10V—26V
- No Separate Supply Required for Gate Drive
- Efficient Class-D Operation Eliminates Need for Heat Sinks
- Closed Loop Power Stage Architecture
- Improved PSRR Reduces Power Supply Performance Requirements
- High Damping Factor Provides for Tighter, More Accurate Sound With Improved Bass Response
- Constant Output Power Over Variation in Supply Voltage
- Differential Inputs
- Integrated Self-Protection Circuits Including Overvoltage, Undervoltage, Overtemperature, and Short Circuit With Error Reporting
- APPLICATIONS
- Flat-Panel, Rear-Projection, and CRT TV
The TAS5601 is a 20-W (per channel) efficient, stereo digital amplifier power stage for driving 4 single-ended speakers, 2 bridge-tied speakers, or combination of single and bridge-tied loads. The TAS5601 can drive a speaker with an impedance as low as 4Ω. The high efficiency, >90% into 8-Ω loads, of the TAS5601 eliminates the need for an external heat sink.
A simple interface to a digital audio PWM processor is shown below. The TAS5601 is fully protected against faults with short-circuit protection and thermal protection as well as overvoltage and undervoltage protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions.
