OVERVIEW
The SM5876AM is a 3rd-order Σ∆, 2-channel D/A converter LSI for CD-ROM digital audio reproduction equipment. It incorporates an 8-times oversampling digital filter, deemphasis filter, attenuator, and soft mute circuits built-in., using NPC’s Molybdenum-gate CMOS technology.

FEATURES
■ System clock
    • 768fs (33.8688MHz)
    • 384fs (16.9344MHz)
■ Crystal oscillator circuit built-in
■ Infinity-zero detector circuit built-in
■ 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
    • −0.34 dB passband correction for 70 kHz LPF
■ 3-line microcontroller interface for output mode and attenuator control settings
■ 16 output modes
■ Deemphasis filter operation
    • 36 dB stopband attenuation
    • −0.09 to +0.23 dB deviation
    • −0.34 dB passband correction for 70 kHz LPF
■ Attenuator
    • 8-bit attenuator (linear 256 steps)
    • Independent left/right-channel set function
    • Soft mute function (approx. 1024/fs mute time)
■ Σ∆ 2-channel D/A converter
    • 3rd-order noise shaper
    • 32fs oversampling
■ 44.1 kHz sampling frequency
■ 2.7 to 5.5 V operating supply voltage range (4.5 to 5.5 V operating supply voltage range with 768fs system clock)
■ 24-pin SSOP
■ Molybdenum-gate CMOS process