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NSP-8240
State-of-the-art 8ch full digital audio amplifier processor with external memory interface
comming
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Overview
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NSP-8240 is a core DSP controller
IC especially designed for next-generation multi-channel
full digital amplifier systems. It accepts eight independent
digital audio signal through its built-in I©÷S interface
up to the sampling rate of as high as 192kHz, and it has
four channels of auxiliary digital audio input, eight
channels of auxiliary digital audio output, and five channels
of auxiliary PWM output. Using external memory, professional
quality sound field effects and loud-speaker location compensation
can be implemented.
Neofidelity's patient filed functional block called SFACS(Sampling
Frequency Adaptive Coefficient Scaling) and world-unique
floating point operation scheme eliminate audio performance
degradation problems in conventional digital amplifier
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Applications
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Next-generation multi-channel product
6.1 channel, 7.1 channel Hi-Fi receiver |
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Functional block diagram
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Features
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Input |
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8 main channel and 4 AUX channel I©÷S input
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32kHz~192kHz input fs support
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Support DSD input (6channel)
Micom controlled thru I©÷C operation mode |
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Output |
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8 channel PWM output
8 channel I©÷S/SPDIF AUX output
2 channel line out for downmix REC out
2 channel PWM headphone output
1 channel PWM subwoofer line output |
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Pre-processing |
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Floating point operation
Sampling rate conversion
External memory control interface
- Various sound field effects
Tone control
Bass management (All Dolby, DTS & THX configuration supported)
6 biguads filter per channel
Dynamic range compression |
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PWM conversion |
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PWM-mask control for power stage control
PWM output channel mapping |
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128 pin TQFP package |
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1.8V core, 3.3V I/O power supply |
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