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YSS950 Arkusz danych(PDF) 1 Page - YAMAHA CORPORATION |
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YSS950 Arkusz danych(HTML) 1 Page - YAMAHA CORPORATION |
1 / 30 page YSS950 DAP1 Digital Audio Processor YSS950 CATALOG CATALOG No.: LSI-4SS950A22 2006.10 ■ Outline The YSS950 (DAP1) is a DSP (Digital Signal Processor) for sound field processing, which features a high-speed/ high-precision 32-bit floating point DSP. ■ Features 32-bit floating point DSP achieves high-speed/high-precision operations • Operation frequency: Approximately 166 MHz • Data bus width: 32 bits (24-bit mantissa, 8-bit exponent) • Multiplier/adder: 32 bits × 32 bits + 55 bits → 55 bits (47-bit mantissa, 8-bit exponent) 48 KB (12 Kword) preset command code firmware area 24 KB (6 Kword) download command code firmware area (maximum) 104 KB (26 Kword) data RAM area (maximum) High-speed command code/coefficient data firmware download (burst transfer) Download coefficients data firmware without any interruption of sound (runtime transfer) Firmware’s placement order can be changed Firmware’s number of execution channels can be changed (up to 16 channels) Multiple firmware calls are enabled Audio I/O • 32 bits × 16 channels, TDM • Fixed point decimal format and floating point decimal format (IEEE Standard 754, two’s complement) • Sampling frequency range is 32 to 192 kHz • Audio clock division/switch • Input/output muting • Input/output channel switching External memory not required General I/O ports (4) On-chip PLL Power supply voltage: 1.2 V (core), 3.3 V (pin) Low power consumption: Approximately 130mW (typical value) Si-gate CMOS process Lead-free 64-pin SQFP package (YSS950-SZ) ■ Applications Home theater systems Car audio |
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