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SM5879 Datenblatt(PDF) 1 Page - Nippon Precision Circuits Inc |
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SM5879 Datenblatt(HTML) 1 Page - Nippon Precision Circuits Inc |
1 / 20 page SM5879AV NIPPON PRECISION CIRCUITS—1 NIPPON PRECISION CIRCUITS INC. 3rd-order Σ∆, 2-channel D/A Converter OVERVIEW The SM5879AV is a 3rd-order ∑∆, two-channel D/A convertor LSI for digital audio reproduction equip- ment. This device incorporate NPC's molybdenum- gate CMOS technology and incorporates an 8-times oversampling digital filter and analog 3rd-order ∑∆ post-converter low-pass filters. The SM5879AV also incorporates built-in digital bass boost and deemphasis filters, an attenuator, and soft mute function. Low-voltage operation is also supported. This device features a compact 24-pin VSOP pack- age and a D/A converter that provides both compact size and low power consumption. FEATURES s 2.7 to 3.3 V operating supply voltage s 44.1 kHz sampling frequency s 16.9344 MHz (384fs) system clock s Built-in crystal oscillator circuit s 16-bit, MSB first, rear-packed serial data input format ( ≤ 64 fs bit clock) s 8-times oversampling digital filter • 32 dB stopband attenuation • +0.05 to -0.05 dB passband ripple s Deemphasis filter operation • 36 dB stopband attenuation • -0.09 to +0.23 dB deviation from ideal deem- phasis filter characteristics s Attenuator • 7-bit attenuator (128 steps) set by microcontrol- ler s Soft mute function set by parallel setting • (approximately 1024/fs total muting time) s Mono setting • Left or right channel mono selectable by micro- controller s Built-in infinity-zero detection circuit s ∑∆, two-channel D/A converter • 3rd-order noise shaper • 32fs oversampling s Built-in 3rd-order post-converter low-pass filters s 24-pin VSOP package s Molybdenum-gate CMOS process PINOUT (TOP VIEW) PACKAGE DIMENSIONS Unit: mm 24-pin VSOP ORDERING INFOMATION Device Package SM5879AV 24pin VSOP DVDD TEST P / M AVDDR RO AVSSR TO1 LRCI BCKI DI BB2 / BBON BB1 / MDT DEEM / MCK XVDD AVSSL XTO LO AVDDL MUTEO XVSS CKO 1 12 13 24 DVSS XTI MUTE / MLEN 0.65 7.8 ± 0.1 0 to 10 +0.1 0.22 −0.05 0.15 − 0.02 + 0.05 |
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Ähnliche Beschreibung - SM5879 |
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