SM5876AM

SM5876AM NIPPON PRECISION CIRCUITS INC. 3rd-order Σ∆, 2-channel D/A Converter 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. The SM5876AM operates from a 2.7 to 5.5 V supply, and is available in 24-pin SSOPs. PINOUT MLEN CKSL CKO DVSS BCKI DI DVDD LRCI TSTN LO AVDDL LON 1 24 FEATURES s s s s s s s s s s s s s s 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 Molybde...