SSM2211S

低失真1.5瓦音频功率放大器 Low Distortion 1.5 Watt Audio Power Amplifier

GENERAL DESCRIPTION

The SSM22113 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