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| 型號(hào)： | DSD1794DBR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STRRO DIGITAL-TO-ALALOG CONVERTER |
| 中文描述： | 24位192 kHz的采樣，高級(jí)分段，音頻STRRO數(shù)字至ALALOG轉(zhuǎn)爐 |
| 文件頁(yè)數(shù)： | 1/47頁(yè) |
| 文件大小： | 417K |
| 代理商： | DSD1794DBR |
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SLES077A MARCH 2003 REVISED NOVEMBER 2003
FEATURES
Supports Both DSD and PCM Formats
24-Bit Resolution
Analog 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-p
8
×
Oversampling Digital Filter:
Stop-Band Attenuation: –130 dB
Pass-Band Ripple:
±
0.00001 dB
Sampling Frequency: 10 kHz to 200 kHz
System Clock: 128, 192, 256, 384, 512, or
768 f
S
With Autodetect
Accepts 16-, 20-, and 24-Bit Audio Data
PCM Data Formats: Standard, I
2
S, and
Left-Justified
Optional Interface to External Digital Filter or
DSP Available
I
2
C-Compatible Serial Port
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
Dual-Supply Operation:
5-V Analog, 3.3-V Digital
5-V Tolerant Digital Inputs
Small 28-Lead SSOP Package, Lead-Free
Product
APPLICATIONS
A/V Receivers
SACD Player
DVD Players
HDTV Receivers
Car Audio Systems
Digital Multitrack Recorders
Other Applications Requiring 24-Bit Audio
DESCRIPTION
The DSD1794 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 DSD1794 provides balanced
current outputs, allowing the user to optimize analog
performance externally. The DSD1794 accepts the PCM
and DSD audio data formats, providing easy interfacing to
audio DSP and decoder chips. The DSD1794 also
interfaces with external digital filter devices (DF1704,
DF1706, PMD200). Sampling rates up to 200 kHz are
supported. A full set of userprogrammable functions is
accessible through an I
2
C-compatible serial port.
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate
precautions. 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.
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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.
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Copyright
2003, Texas Instruments Incorporated
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