Catalog
113dB SNR Stereo DAC (S/W Control)
Key Features
• 24-Bit ResolutionAnalog Performance:Dynamic Range: 113 dBTHD+N: 0.001%Full-Scale Output: 2.1 V RMS (at Postamp)Differential Voltage Output: 3.2 Vp-p8× Oversampling Digital Filter:Stop-Band Attenuation: –82 dBPass-Band Ripple: ±0.002 dBSampling Frequency: 10 kHz to 200 kHzSystem Clock: 128, 192, 256, 384, 512, or 768 fSWith AutodetectAccepts 16-, 20-, and 24-Bit Audio DataPCM Data Formats: Standard, I2S, and Left-JustifiedDSD Format Interface AvailableOptional Interface to External Digital Filter or DSP AvailableTDMCA or Serial Port (SPI/I2C)User-Programmable Mode Controls:Digital Attenuation: 0 dB to –120 dB, 0.5 dB/StepDigital De-EmphasisDigital Filter Rolloff: Sharp or SlowSoft Mute/PCM FormatZero Detect Mute/PCM FormatZero Flag for Each Output/PCM and DSD FormatsDual Supply Operation:5-V Analog, 3.3-V Digital5-V Tolerant Digital InputsSmall 28-Lead SSOP PackageAPPLICATIONSA/V ReceiversDVD Movie PlayersSACD PlayerHDTV ReceiversCar Audio SystemsDigital Multitrack RecordersOther Applications Requiring 24-Bit Audio24-Bit ResolutionAnalog Performance:Dynamic Range: 113 dBTHD+N: 0.001%Full-Scale Output: 2.1 V RMS (at Postamp)Differential Voltage Output: 3.2 Vp-p8× Oversampling Digital Filter:Stop-Band Attenuation: –82 dBPass-Band Ripple: ±0.002 dBSampling Frequency: 10 kHz to 200 kHzSystem Clock: 128, 192, 256, 384, 512, or 768 fSWith AutodetectAccepts 16-, 20-, and 24-Bit Audio DataPCM Data Formats: Standard, I2S, and Left-JustifiedDSD Format Interface AvailableOptional Interface to External Digital Filter or DSP AvailableTDMCA or Serial Port (SPI/I2C)User-Programmable Mode Controls:Digital Attenuation: 0 dB to –120 dB, 0.5 dB/StepDigital De-EmphasisDigital Filter Rolloff: Sharp or SlowSoft Mute/PCM FormatZero Detect Mute/PCM FormatZero Flag for Each Output/PCM and DSD FormatsDual Supply Operation:5-V Analog, 3.3-V Digital5-V Tolerant Digital InputsSmall 28-Lead SSOP PackageAPPLICATIONSA/V ReceiversDVD Movie PlayersSACD PlayerHDTV ReceiversCar Audio SystemsDigital Multitrack RecordersOther Applications Requiring 24-Bit Audio
Description
AI
The PCM1791A 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 PCM1791A provides balanced voltage outputs, allowing the user to optimize analog performance externally. The PCM1791A accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1791A 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 an SPI or I2C serial control port, which supports register write and readback functions. The PCM1791A also supports the time-division-multiplexed command and audio (TDMCA) data format.
The PCM1791A 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 PCM1791A provides balanced voltage outputs, allowing the user to optimize analog performance externally. The PCM1791A accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1791A 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 an SPI or I2C serial control port, which supports register write and readback functions. The PCM1791A also supports the time-division-multiplexed command and audio (TDMCA) data format.
