CE4890

1.25W Fully Differential Audio Power Amplifier with External Feedback Resistors CE4890 1.25W Fully Differential Audio Power Amplifier with External Feedback Resistors CE4890 „ INTRODUCTION The CE4890 is a fully differential audio power amplifier designed for portable communication device applications. It is capable of delivering 1.25 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5V battery voltage. It operates from 2.2 to 5.5V. Features like 86dB PSRR at 217Hz, improved RF-rectification immunity, the space-saving 8-pin MSOP8 ， SOP8 and DIP8 package, the advanced pop & click circuitry, a minimal count of external components and low-power shutdown mode make CE4890 ideal for wireless handsets. The CE4890 is unity-gain stable, and the gain can be configured by external input resistors and external feedback resistors. „ APPLICATIONS z Wireless handsets z Portable audio devices z PDAs z Notebook computer „ FEATURES z Fully differen...