TAS5601

具有反馈的 20W 立体声数字放大器功率级

The 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.

.

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

.

APPLICA ONS

.

Flat-Panel, Rear-Projection, and CRT TV