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PCM1794A

更新时间： 2024-11-23 04:34:59
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30页 294K
描述
24-bit,192-khz sampling,advanced segment, audio stereo digital-to-analog converter

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PCM1794A 数据手册

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SLES117A – AUGUST 2004 – REVISED NOVEMBER 2006  
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D
Dual-Supply Operation:  
FEATURES  
− 5-V Analog, 3.3-V Digital  
5-V Tolerant Digital Inputs  
Small 28-Lead SSOP Package  
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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)  
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APPLICATIONS  
− THD+N: 0.0004%  
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A/V Receivers  
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Differential Current Output: 7.8 mA p-p  
DVD Players  
8× Oversampling Digital Filter:  
− Stop-Band Attenuation: –130 dB  
− Pass-Band Ripple: 0.00001 dB  
Musical Instruments  
HDTV Receivers  
Car Audio Systems  
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Sampling Frequency: 10 kHz to 200 kHz  
System Clock: 128, 192, 256, 384, 512, or  
Digital Multitrack Recorders  
Other Applications Requiring 24-Bit Audio  
768 f With Autodetect  
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Accepts 16- and 24-Bit Audio Data  
DESCRIPTION  
2
D
PCM Data Formats: Standard, I S, and  
The PCM1794A 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 PCM1794A  
provides balanced current outputs, allowing the user to  
optimize analog performance externally. Sampling rates  
up to 200 kHz are supported.  
Left-Justified  
D
Optional Interface Available to External  
Digital Filter or DSP  
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Digital De-Emphasis  
Digital Filter Rolloff: Sharp or Slow  
Soft Mute  
Zero Flag  
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.  
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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ꢡ ꢝꢟ ꢤꢝꢜ ꢥ ꢢꢝ ꢣ ꢪꢦ ꢡ ꢩ ꢤꢩ ꢡ ꢨ ꢢꢩ ꢝꢟꢣ ꢪ ꢦꢜ ꢢꢮꢦ ꢢꢦ ꢜ ꢥꢣ ꢝꢤ ꢌꢦꢧ ꢨꢣ ꢋꢟꢣ ꢢꢜ ꢛꢥ ꢦꢟꢢ ꢣ ꢣꢢ ꢨꢟꢠ ꢨꢜ ꢠ ꢞ ꢨꢜ ꢜ ꢨ ꢟꢢꢯꢭ  
ꢀꢜ ꢝ ꢠꢛꢡ ꢢ ꢩꢝ ꢟ ꢪꢜ ꢝ ꢡ ꢦ ꢣ ꢣ ꢩꢟ ꢰ ꢠꢝ ꢦ ꢣ ꢟꢝꢢ ꢟꢦ ꢡꢦ ꢣꢣ ꢨꢜ ꢩꢬ ꢯ ꢩꢟꢡ ꢬꢛꢠ ꢦ ꢢꢦ ꢣꢢꢩ ꢟꢰ ꢝꢤ ꢨꢬ ꢬ ꢪꢨ ꢜ ꢨꢥ ꢦꢢꢦ ꢜ ꢣꢭ  
Copyright 2006, Texas Instruments Incorporated  
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 		24BIT 192KHZ SAMPLING , ADVANCED SEGMENT, AUDIO STEREO DIGITAL TO ANALOG CONVERTER

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