FEATURES

Supports DSD and PCM Formats

Supports TDMCA

Accepts 16-, 18-, 20- and 24-Bit Audio Data for

PCM Format

Analog Performance (VCC = 5 V):

− Dynamic Range: 108 dB, Typical

− SNR: 108 dB, Typical

− THD+N: 0.0012%, Typical

− Full-Scale Output: 4 Vpp, Typical

Includes 8× Oversampling Digital Filter for

PCM Format:

− Stopband Attenuation: –60 dB

− Passband Ripple: ±0.02 dB

Includes Digital DSD FILTER for DSD Format:

− Passband: 50 kHz, 70 kHz, 60 kHz at –3 dB

Sampling Frequency:

− PCM Mode: 10 kHz to 200 kHz

− DSD Mode: 64 × 44.1 kHz

System Clock:

− 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS

Data Formats:

− Standard, I2S, and Left-Justified for PCM

Direct Stream Digital

User-Programmable Mode Controls:

− Digital Attenuation

− Digital De-Emphasis

− Digital Filter Rolloff: Sharp or Slow Soft

Mute

− Three Zero Flags

Dual Supply Operation:

− 5-V Analog, 3.3-V Digital

Package: 52-Pin TQFP

APPLICATIONS

Universal A/V Players

SACD Players

Car Audio Systems

Other Applications Requiring 24-Bit Audio

DESCRIPTION

The DSD1608 is a CMOS, monolithic, 8-channel

digital-to-analog converter which supports both PCM

audio data format and direct stream digital (DSD) audio

data format. The device includes an 8× digital

interpolation filter and a digital DSD filter with three

selectable frequency-response curves, followed by

Texas Instruments’ enhanced multilevel delta-sigma

modulator, which employs 4th-order noise shaping and

8-level amplitude quantization to achieve excellent

dynamic performance and improved tolerance to clock

jitter. Sampling rates up to 192 kHz for the PCM mode

and 64 × 44.1 kHz for the DSD mode are supported. A

full set of user-programmable functions is accessible

through a 4-wire serial control port, which supports

register write and read functions. The DSD1608

supports the time-division-multiplexed command and

audio data (TDMCA) format. The DSD1608 is available

in a 52-pin TQFP package.