DSD1702E

ADCs/DACs - Special Purpose Overview

The DSD1702E is a stereo digital-to-analog converter supporting PCM and Direct Stream Digital (DSD) formats. It accepts 16-, 18-, 20-, and 24-bit PCM data or 1-bit DSD data. The device features an 8x oversampling digital filter for PCM with selectable sharp or slow roll-off, and a DSD filter with three passband options (50 kHz, 60 kHz, or 70 kHz). Analog performance at VCC = 5 V includes a typical dynamic range of 106 dB, SNR of 106 dB, and THD+N of 0.0015%. It operates on dual supplies: 3.3 V digital (VDD) and 5 V analog (VCC), with 5-V tolerant inputs.

ADCs/DACs - Special Purpose Feature Summary

• Supports both PCM (up to 200 kHz) and DSD (64 x 44.1 kHz) audio formats
• Includes user-programmable digital attenuation, soft mute, and de-emphasis controls
• Features selectable digital filter roll-off (sharp/slow) for PCM and multiple passbands for DSD
• Operates with dual power supplies: 3.3 V digital and 5 V analog

ADCs/DACs - Special Purpose Applications

• Universal A/V players
• SACD players
• Car audio systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix when purchasing. The standard DSD1702E is supplied in rails, while the DSD1702E/2K variant is provided in tape and reel packaging containing 2000 devices. Confirm package marking and transport media requirements align with assembly processes.

ADCs/DACs - Special Purpose Selection Notes

Select the DSD1702E for designs requiring simultaneous support for high-resolution PCM and DSD audio streams. Ensure the system clock configuration matches the required sampling rate, as the device supports frequencies from 128fs to 768fs. Verify that the host interface supports the required serial data formats (Standard, I2S, or Left-Justified) for PCM mode.

ADCs/DACs - Special Purpose Part Context

The DSD1702E belongs to the DSD1702 family of enhanced multiformat delta-sigma audio DACs manufactured by Texas Instruments. It utilizes Burr-Brown’s multilevel delta-sigma modulation technology to achieve high dynamic performance and jitter tolerance. The component is housed in a 20-lead QSOP package suitable for surface-mount applications.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.