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24-Bit, 192kHz Sampling, Advanced Segment, Audio Stereo DAC (Rev. B)
Texas Instruments
Description
The DSD1791 is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The DSD1791 provides balanced voltage outputs, allowing the user to optimize analog performance externally. The DSD1791 accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The DSD1791 also accepts interface to external digital filter devices (DF1704, DF1706, PMD200). Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through a three-wire serial control port. The DSD1791 also supports the time-division-multiplexed command and audio (TDMCA) data format.
Features
Supports both DSD and PCM Formats 24-Bit Resolution Analog Performance: Dynamic Range: 113 dB THD+N: 0.001% Full-Scale Output: 2.1 V RMS (at Postamp) Differential Voltage Output: 3.2 Vp-p 8× Oversampling Digital Filter: Stop-Band Attenuation: –82 dB Pass-Band Ripple: ±0.002 dB Sampling Frequency: 10 kHz to 200 kHz System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect Accepts 16-, 20-, and 24-Bit PCM Audio Data PCM Data Formats: Standard, I2S, and Left-Justified DSD Format Interface Available Optional Interface to External Digital Filter or DSP Available TDMCA Interface Available User-Programmable Mode Controls: Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step Digital De-Emphasis Digital Filter Rolloff: Sharp or Slow Soft Mute/PCM Format Zero Detect Mute/PCM Format Zero Flag for Each Output/PCM and DSD Formats Dual Supply Operation: 5-V Analog, 3.3-V Digital 5-V Tolerant Digital Inputs Small 28-Lead SSOP Package APPLICATIONS A/V Receivers SACD Players DVD Players HDTV Receivers Car Audio Systems Digital Multitrack Recorders Other Applications Requiring 24-Bit Audio
Related Datasheets
| Part Number | Description | Category |
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| • DSD1608 | 8-Channel, Enhanced MultiFormat, Delta-Sigma, Digital-to-Analog Converter | Passives - Filters, Oscillators and Resonators |
| • DSD1792A | 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo DAC (Rev. B) | Passives - Filters, Oscillators and Resonators |
| • DSD1793 | 24-Bit 192kHz Sampling Advanced Segment Audio Stereo DAC (Rev. B) | Passives - Filters, Oscillators and Resonators |
| • DSD1794A | 24-Bit 192-kHz Sampling Advanced Segment Audio Stereo DAC (Rev. A) | Passives - Filters, Oscillators and Resonators |
| • DSD1796 | 24-Bit 192-kHz Sampling Advanced-Segment Audio Stereo DAC (Rev. A) | Passives - Filters, Oscillators and Resonators |
| • PCM1791A | 24-Bit 192 kHz Sampling Advanced Segment Audio Stereo DAC (Rev. B) | Passives - Filters, Oscillators and Resonators |
| • PCM1796 | 24-Bit 192-kHz Sampling Advanced-Segment Audio Stereo DAC (Rev. A) | Passives - Filters, Oscillators and Resonators |
| • PCM4104-EP | High-Performance, 24-Bit, 216 kHz Sampling, Four-Channel Audio Digital-to-Analog | Passives - Filters, Oscillators and Resonators |
| • TPA2012D2 | 2.1 W/CH Stereo Filter-Free Class D Audio Power Amp (Rev. C) | Actives - Sensors and Transducers |
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