OVERVIEW

The ΣDECO SM588× series, fabricated using NPC’s Molybdenum-gate CMOS process, are D/A converter ICs for digital audio, that provide all the basic converter functions in miniature 8-pin packages. They each feature built-in 8-times oversampling digital filter, Σ∆ jitter-compensated D/A converter, and post-analog lowpass filter converter stages required for digital audio. They can sample at up to 96kHz for 16 or 24-bit input word length. A type with built-in deemphasis filter is also available for applications requiring deemphasis.

FEATURES

3-wire Input

■ 2-channel stereo configuration

■ 256fs, 384fs, or 512fs system clock (applied by product / version)

■ Input format

3-wire serial, MSB first, rear-packed

16 or 24-bit (applied by product / version)

■ 8-times oversampling digital filter

• 32 dB stopband attenuation

• ±0.05 dB passband ripple

■ Σ∆ 2-channel D/A converter

• 3rd-order noise shaper

• Oversampling operation

■ 3rd-order post-analog lowpass filter

■ 4.5 to 5.5 V supply voltage

■ 8-pin SOP

■ Molybdenum-gate CMOS process

2-wire Input with Deemphasis Filter

■ 2-channel stereo configuration

■ 256fs, 384fs, or 512fs system clock (applied by product / version)

■ Input format

2-wire serial, MSB first, rear-packed

16 or 24-bit (applied by product / version)

■ Deemphasis filter (fs = 44.1 kHz sample rate)

■ 8-times oversampling digital filter

• 32 dB stopband attenuation

• ±0.05 dB passband ripple

■ Σ∆ 2-channel D/A converter

• 3rd-order noise shaper

• Oversampling operation

■ 3rd-order post-analog lowpass filter

■ 4.5 to 5.5 V supply voltage

■ 8-pin SOP

■ Molybdenum-gate CMOS process

APPLICATIONS

■ Audio equipment