LC83025 Datasheet (Sanyo Semicon Device) - Digital Signal Processor

LC83025, Digital Signal Processor

Ordering number : EN4977A CMOS LSI LC83025E Digital Signal Processor for Karaoke Products Overview The LC83025E is a special-purpose karaoke DSP that implements the signal processing required by karaoke systems, including pitch shift, microphone echo, voice muting and simple surround, with only a single 256Kb external DRAM.

Since the LC83025E includes built-in A/D and D/A converters, it can also handle analog inputs and outputs in addition to digital inputs and outputs.

The LC83025E uses seri

LC83025 Features

* Applications

* Pitch shift The LC83025E can shift the music pitch or the microphone pitch by ±15 steps in 1/4 interval steps, or ±1 octave in scale tone steps according to command data sent from the microcontroller. Furthermore, the pitch can be changed up to ±1 octave in arbitrary