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SM5844AF Datasheet(PDF) 2 Page - Nippon Precision Circuits Inc |
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SM5844AF Datasheet(HTML) 2 Page - Nippon Precision Circuits Inc |
2 / 26 page SM5844AF NIPPON PRECISION CIRCUITS—2 Filter Characteristics and Converter Efficiency s 20-bit internal data word length s Deemphasis filter characteristics (IIR filter) • ±0.03 dB gain deviation from ideal filter characteristics s Converter noise levels • ≤ −110 dB internally-generated noise • −98 dB (16-bit output), −110 dB (18-bit output) and −122 dB (20-bit output) word rounding noise s Anti-aliasing LPF characteristics (4 FIR filters) with automatic output/input sample rate conversion ratio selection • Up converter LPF (1.0 to 2.0 times) • Down converter LPF 1 (48.0 to 44.1 kHz or 0.92 times) • Down converter LPF 2 (44.1 to 32.0 kHz or 0.73 times) • Down converter LPF 3 (48.0 to 32.0 kHz or 0.67 times) s Output S/N ratio (theoretical values) Interfaces s Input data format • 2s-complement, L/R alternating, serial • Normal format (non IIS) s Output data format • 2s-complement, MSB first, L/R alternating, serial • Continuous bit clock Output signal word length S/N ratio 16-bit input word length 20-bit input word length 16 bits 94.8 dB 97 dB 18 bits 97.5 dB 106 dB 20 bits 97.7 dB 109 dB Mode W ord length Front/rear p a cking Data sequence 1 16 bits Rear MSB first 2 20 bits 3 Front 4 Rear LSB first Mode W ord length IIS selection Front/rear p a cking 1 16 bits N o r mal (non IIS) Rear 2 18 bits 3 20 bits 4 20 bits Front 5 16 bits IIS 6 18 bits 7 20 bits |
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