Class D 音频放大器

BA2037

2W Stereo Class-D Audio Power Amplifier

Overview

The BA2037 is a 5V class-D amplifier from Biforst Technology. BA2037 provides dc volume control, lower supply current, high efficiency & few external components for driving speaker directly. BA2037 also integrates Anti-Pop, Output Short & Over-Heat Protection Circuitry to increase device reliability. The functionality makes this device ideal for LCD projectors, LCD monitors, powered speakers & other applications that demand more battery life.

Feature

.2W Per Channel Into 3-Ω Speakers (THD+N = 10%@5.6V)

.Operation Voltage From 3.3 To 5.5V

.DC Volume Control From –38dB to 20dB

.Low Shutdown Control : <10μA

.Low Noise Floor, -80dBV

.Maximum Efficiency into 3-Ω, 77%

.Maximum Efficiency into 8-Ω, 87%

.PSRR, -71dB

.Filter Free PWM Output Technology without LC Output Filter

.Integrated Anti-Pop Circuitry

.Integrated Output Short Protection Circuitry

.Integrated Over-Heat Protection Circuitry

.Provide DC Volume Control

.Package Type: HSOP28, TSSOP28 & QFN32

Datasheet:  BA20370 (Package Type: HSOP28)

            BA20371 (Package Type: TSSOP28)

            BA20372 (Package Type: QFN32)