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SM5878AM データシート

部品番号コンポーネント説明メーカー
SM5878AM 3rd-order Σ∆, 2-channel D/A converter NPC
Nippon Precision Circuits  NPC
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OVERVIEW
The SM5878AM/AV is a 3rd-order Σ∆, 2-channel D/A converter LSI for digital audio reproduction equipment. It also incorporates an 8-times oversampling digital filter and analog, post-converter lowpass filters.

FEATURES
■ 4.5 to 5.5 V operating supply voltage range
■ 44.1 kHz sampling frequency
■ Normal (384fs) and double-speed (192fs), 16.9344 MHz system clock
■ 16.9344 MHz crystal oscillator circuits built-in
■ 16-bit, MSB first, rear-packed serial data input format (≤ 64fs bit clock)
■ 8-times oversampling digital filter
    • 32 dB stopband attenuation
    • ±0.05 dB passband ripple
■ Deemphasis filter operation
    • 36 dB stopband attenuation
    • −0.09 to +0.23 dB deviation from ideal deemphasis filter characteristics
■ Attenuator
    • 6-bit attenuator (64 steps)
    • Soft mute function when MODE is HIGH (approx. 1024/fs total muting time)
■ Built-in infinity-zero detector
■ Σ∆ 2-channel D/A converter
    • 3rd-order noise shaper
    • 32fs oversampling (16fs for double-speed mode)
■ 2nd-order analog, post-converter lowpass filters built-in
■ 24-pin SSOP/VSOP
■ Molybdenum-gate CMOS process

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