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LP3950
www.ti.com SNVS331C – NOVEMBER 2004 – REVISED APRIL 2013 LP3950 Color LED Driver with Audio Synchronizer
Check for Samples: LP3950 FEATURES 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. Also several fine
tuning options are available for differentiation
purposes. The chip also has an unique AGC
(Automatic Gain Control) feature which tracks the
input signal level and automatically adjusts the gain
to an optimal value. 1 2 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 …
