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SM5866AS Datasheet(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM5866AS Datasheet(HTML) 1 Page - Nippon Precision Circuits Inc |
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1 / 23 page  SM5866AS NIPPON PRECISION CIRCUITS INC.—1 D/A Converter for DSD and PCM OVERVIEW The SM5866AS is a D/A converter compatible with both the DSD SACD signal format and the PCM CD/DVD-Audio and similar formats. DSD employs a 1-bit data stream, from a high-order ∆Σ conversion at 64fs (fs = 44.1kHz), that contains high-level quan- tization noise in the high-frequency band above 20kHz. The SM5866AS, in DSD reproduction, has a DSD-dedicated FIR digital filter that attenuates the DSD quantization noise in the digital domain, and the resulting multi-level signal is D/A converted. In PCM reproduction, an oversampled PCM signal input, provided using a SM5847AF or similar digital filter, is converted to a multi-level signal by the 3rd- order noise shaper and then the multi-level signal is D/A converted. FEATURES I Mono-channel multi-level D/A converter I High performance analog characteristics • DSD mode (typical values) - THD + N: –109dB (0.00036%) - D.R: 115dB • PCM mode (typical values) - THD+N: –106dB (0.00050%) - D.R: 112dB I 2 selectable DSD digital filters I PCM input mode • 24-bit, MSB-first, right-justified • 8-times or 4-times oversampling of fs = 16k to 192kHz I System clock (CKI) Maximum operating frequency: fCKI (max) • 37.0MHz (note 1) • 45.4MHz (note 2) I DSD mode fs = fCKI/512 • typ. fs = 44.1kHz • max. fs = 52.7kHz (note 1) • max. fs = 88.7kHz (note 2) I PCM mode system clock • 192/256/384/512/768fs I Operating voltage: 4.5 to 5.5V I Operating temperature: –40 to 85 °C I Package: 28-pin SOP I Molybdenum-gate CMOS process (note 1) Under the operating conditions 1: 4.5 to 5.5V, –40 to 85 °C (note 2) Under the operating conditions 2: 4.75 to 5.25V, –40 to 70 °C ORDERING INFORMATION PINOUT (Top view) PACKAGE DIMENSIONS (Unit: mm) Weight: 0.60g Device Package SM5866AS 28-pin SOP 1 15 28 14 TSTN TO DVDD SDI SBCKA SBCKD RSTN IMD1 IMD0 AVSSA RA IOUTA IOUTAN AVDDA DI AVDDB BCKI WCKI DVSS BCPOL RB IOUTB IOUTBN AVSSB DSPOL CVDD CVSS CKI 1.095TYP 18.7 ± 0.3 1.27 0.4 ± 0.1 0.12 M 0.10 0.15 − 0.05 + 0.1 0 to 10 |
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