DSD1794A Series

132dB SNR Highest Performance Stereo Audio DAC (H/W Control)

Catalog

132dB SNR Highest Performance Stereo Audio DAC (H/W Control)

Part	Resolution (Bits)	Operating Temperature [Min]	Operating Temperature [Max]	Data Interface	Mounting Type	Sampling Rate (Per Second)	Number of Channels [custom]	Package / Case [custom]	Package / Case	Package / Case [custom]	Supplier Device Package	Voltage Supply Source	Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Voltage - Supply
Texas Instruments DSD1794DB	24 b	-25 °C	85 °C	DSD PCM	Surface Mount	200k	3	0.209 in	28-SSOP	5.3 mm	28-SSOP	Analog and Digital	Audio DAC
Texas Instruments DSD1794ADB	24 b	-25 °C	85 °C	DSD PCM	Surface Mount	200k	3	0.209 in	28-SSOP	5.3 mm	28-SSOP	Analog and Digital	Audio DAC	3 V	3.6 V	5 V
Texas Instruments DSD1794ADBR	24 b	-25 °C	85 °C	DSD PCM	Surface Mount	200k	3	0.209 in	28-SSOP	5.3 mm	28-SSOP	Analog and Digital	Audio DAC	3 V	3.6 V	5 V
Texas Instruments DSD1794ADBR	24 b	-25 °C	85 °C	DSD PCM	Surface Mount	200k	3	0.209 in	28-SSOP	5.3 mm	28-SSOP	Analog and Digital	Audio DAC	3 V	3.6 V	5 V
Texas Instruments DSD1794DBR	24 b	-25 °C	85 °C	DSD PCM	Surface Mount	200k	3	0.209 in	28-SSOP	5.3 mm	28-SSOP	Analog and Digital	Audio DAC
Texas Instruments DSD1794DBRG4	24 b	-25 °C	85 °C	DSD PCM	Surface Mount	200k	3	0.209 in	28-SSOP	5.3 mm	28-SSOP	Analog and Digital	Audio DAC

Catalog

132dB SNR Highest Performance Stereo Audio DAC (H/W Control)

Key Features

• Supports Both DSD and PCM Formats24-Bit ResolutionAnalog Performance:Dynamic Range:132 dB (9 V RMS, Mono)129 dB (4.5 V RMS, Stereo)127 dB (2 V RMS, Stereo)THD+N: 0.0004%Differential Current Output: 7.8 mA p-p8× Oversampling Digital Filter:Stop-Band Attenuation: –130 dBPass-Band Ripple: ±0.00001 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-JustifiedOptional Interface to External Digital Filter or DSP AvailableI2C-Compatible Serial PortUser-Programmable Mode Controls:Digital Attenuation: 0 dB to –120 dB, 0.5 dB/StepDigital De-EmphasisDigital Filter Rolloff: Sharp or SlowSoft MuteDual-Supply Operation:5-V Analog, 3.3-V Digital5-V Tolerant Digital InputsSmall 28-Lead SSOP PackageAPPLICATIONSA/V ReceiversSACD PlayerDVD PlayersHDTV ReceiversCar Audio SystemsDigital Multitrack RecordersOther Applications Requiring 24-Bit AudioSupports Both DSD and PCM Formats24-Bit ResolutionAnalog Performance:Dynamic Range:132 dB (9 V RMS, Mono)129 dB (4.5 V RMS, Stereo)127 dB (2 V RMS, Stereo)THD+N: 0.0004%Differential Current Output: 7.8 mA p-p8× Oversampling Digital Filter:Stop-Band Attenuation: –130 dBPass-Band Ripple: ±0.00001 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-JustifiedOptional Interface to External Digital Filter or DSP AvailableI2C-Compatible Serial PortUser-Programmable Mode Controls:Digital Attenuation: 0 dB to –120 dB, 0.5 dB/StepDigital De-EmphasisDigital Filter Rolloff: Sharp or SlowSoft MuteDual-Supply Operation:5-V Analog, 3.3-V Digital5-V Tolerant Digital InputsSmall 28-Lead SSOP PackageAPPLICATIONSA/V ReceiversSACD PlayerDVD PlayersHDTV ReceiversCar Audio SystemsDigital Multitrack RecordersOther Applications Requiring 24-Bit Audio

Description

The DSD1794A 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 DSD1794A provides balanced current outputs, allowing the user to optimize analog performance externally. The DSD1794A accepts the PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The DSD1794A also interfaces with 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 I2C-compatible serial port. The DSD1794A 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 DSD1794A provides balanced current outputs, allowing the user to optimize analog performance externally. The DSD1794A accepts the PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The DSD1794A also interfaces with 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 I2C-compatible serial port.