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SM5841HP Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM5841HP Datasheet(HTML) 1 Page - Nippon Precision Circuits Inc |
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1 / 20 page  SM5841H NIPPON PRECISION CIRCUITS—1 NIPPON PRECISION CIRCUITS INC. Audio Multi-function Digital Filter OVERVIEW The SM5841H is an 8-times oversampling (interpo- lation) digital filter for digital audio reproduction equipment. It accepts 16 or 18-bit input data, and outputs data in 16, 18 or 20-bit format, making a wide range of interfaces possible. It also features digital deemphasis for 3 sampling frequencies, a noise shaper to reduce quantization noise, a DC off- set output and other circuits. FEATURES Functions s 2-channel processing s 8-times (8fs) oversampling (interpolation) s Digital deemphasis (fs = 48/44.1/32 kHz) s Serial input data 2s complement, MSB first, 16/18-bit s Serial output data 2s complement, MSB first, 16/18/20-bit s 1st-order noise shaper (for 16/18-bit output only) s 256fs/384fs system clock selectable s Output data DC offset (approximately 0.8%) ON/OFF control s TTL-compatible input/outputs s 5 V (standard) supply s 3.2 V operating voltage s Molybdenum-gate CMOS Filter Characteristics s 3-stage DC FIR interpolation filter 1st stage (fs → 2fs), 69-tap 2nd stage (2fs → 4fs), 13-tap 3rd stage (4fs → 8fs), 9-tap s IIR deemphasis filter for gain and phase character- istics close to those of analog filters s Overflow limiter built-in APPLICATIONS s Digital amplifiers s CD players s DAT players s DBS systems s PCM systems ORDERING INFOMATION Device Package SM5841HP 18pin DIP SM5841HS 22pin SOP |
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