The DSD1702 is a CMOS, monolithic, stereo digital-to-analog converter that supports both PCM audio data format and direct stream digital (DSD) audio data format.
The device includes an 8x digital interpolation filter for PCM signals. A digital DSD filter provides three different selectable frequency response options, followed by Burr-Browns enhanced multilevel delta-sigma modulator employing 4th-order noise shaping and 8-level amplitude quantization. This design achieves excellent dynamic performance and improved tolerance to clock jitter.
DSD1702 sampling rates of up to 192 kHz for PCM mode and 44.1 kHz × 64 for DSD mode are supported. A full set of user-programmable functions is accessible through a 3-wire serial control port, supporting register write functions.
The DSD1702 is available in a 20-lead QSOP package.
Supports DSD and PCM Format
Accepts 16-, 18-, 20- and 24-Bit Audio Data for PCM Format
Accepts Direct Stream Digital (1 bit)
Analog Performance (VCC = 5 V):
Dynamic Range: 106 dB Typ
SNR: 106 dB Typ
THD+N: 0.0015% Typ
Full-Scale Output: 3.1 V(pp) Typ
Includes 8x Oversampling Digital Filter for PCM Format:
Stopband Attenuation: 60 dB
Passband Ripple: ±0.02 dB
Including Digital DSD Filter For DSD Format:
Passband Choices: 50 kHz, 70 kHz or 60 kHz at 3 dB
Sampling Frequency:
PCM Mode: 10 kHz to 200 kHz
DSD Mode: 64 × 44.1 kHz
System Clock:
128fs 192fs, 256fs, 384fs 512fs, 768fs
Data Formats:
Standard, I2S, and Left-Justified for PCM Direct Stream Digital
