DSD1702 Datasheet, PDF (1/28 Pages) Burr-Brown (TI) – ENHANCED MULTIFORMAT, DELTA-SIGMA, AUDIO DIGITAL-TO-ANALOG CONVERTER

DSD1702
SLES005A – JUNE 2001 – REVISED FEBRUARY 2002
ENHANCED MULTIFORMAT, DELTA-SIGMA,
AUDIO DIGITAL-TO-ANALOG CONVERTER
FEATURES
D Supports DSD and PCM Format
D Accepts 16-, 18-, 20- and 24-Bit Audio Data for
PCM Format
D Accepts Direct Stream Digital (1 bit)
D Analog Performance (V_CC = 5 V):
– Dynamic Range: 106 dB Typ
– SNR: 106 dB Typ
– THD+N: 0.0015% Typ
– Full–Scale Output: 3.1 V(pp) Typ
D Includes 8x Oversampling Digital Filter for
PCM Format:
– Stopband Attenuation: –60 dB
– Passband Ripple: ±0.02 dB
D Including Digital DSD Filter For DSD Format:
– Passband Choices: 50 kHz, 70 kHz or
60 kHz at –3 dB
D Sampling Frequency:
– PCM Mode: 10 kHz to 200 kHz
– DSD Mode: 64 × 44.1 kHz
D System Clock:
– 128f_s 192f_s, 256f_s, 384f_s 512f_s, 768f_s
D Data Formats:
– Standard, I²S, and Left-Justified for PCM
Direct Stream Digital
D User-Programmable Mode Controls:
– Digital Attenuation
– Digital De-Emphasis
– Digital Filter Roll-Off: Sharp or Slow Soft
Mute
– Zero Detect Mute
– Zero Flags for Each Output
D Dual Supply Operation:
5-V Analog, 3.3-V Digital
D 5-V Tolerant Digital Inputs
D Small 20-Lead QSOP Package
APPLICATIONS
D Universal A/V Players
D SACD Players
D Car Audio Systems
D Other Applications Requiring 24-Bit Audio
DESCRIPTION
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-Brown’s 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.
This integrated circuit can be damaged by ESD. Burr-Brown recommends that all integrated circuits be handled with appropriate
precaustions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2002, Texas Instruments Incorporated
www.ti.com
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