LP3950 Datasheet (PDF) Download
National Semiconductor
LP3950

Description

The LP3950 is a color LED driver with a built-in audio synchronization feature for any analog audio input such as polyphonic ring tones and MP3 music. LEDs can be synchronized to an audio signal with two methods - amplitude and frequency.

Key Features

  • Audio synchronization for color LEDs with two modes: Amplitude and Frequency
  • Programmable frequency and amplitude response with tracking speed control
  • Automatic gain control or selectable gain for input signal optimization
  • RGB pattern generator similar to LP3933/LP3936
  • Magnetic DC-DC boost converter with programmable boost output voltage
  • Selectable SPI or I2C compatible interface
  • One pin default enable for non-serial interface users. One pin selector for synchronization mode
  • Space efficient 32-pin thin CSP laminate package