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CXD2721Q-1
Single-Chip Digital Signal Processor for Karaoke
Description The CXD2721Q-1 is a Karaoke LSI suitable for use in video CD/LD/CD-G/CD and the like. A large capacity DRAM and AD/DA converters are built in, and a Karaoke mode providing simple surround and Karaoke functions such as key control, microphone echo and voice cancelling, and a music mode providing functions such as surround, parametric equalizer and bass/treble tone control are contained on a single chip. Features • 3-channel 1-bit AD converter, decimation filter and prefilter operational amplifier S/N ratio: 92dB THD + N: 0.02% Filter pass band ripple: ±0.