低失真1.5瓦音频功率放大器 Low Distortion 1.5 Watt Audio Power Amplifier
GENERAL DESCRIPTION
The 3 is a high performance audio amplifier that delivers 1 W rms of low distortion audio power into a bridge connected 8 Ω speaker load or 1.5 W rms into a 4 Ω load. It operates over a wide temperature range and is specified for single-supply voltages between 2.7 V and 5.5 V. When oper ating from batteries, it continues to operate down to 1.75 V. This makes the SSM2211 the best choice for unregulated applications, such as toys and games. Featuring a 4 MHz bandwidth and distortion below 0.2% THD + N @ 1 W, superior performance is delivered at higher power or lower speaker load impedance than competitive units.
FEATURES
1.5 W output1
Differential BTL2 output
Single-supply operation: 2.7 V to 5.5 V
Functions down to 1.75 V
Wide bandwidth: 4 MHz
Highly stable phase margin: >80 degrees
Low distortion: 0.2% THD + N @ 1 W output
Excellent power supply rejection
APPLICATIONS
Portable computers
Personal wireless communicators
Hands-free telephones
Speaker phones
Intercoms
Musical toys and talking games
