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PCM1795

更新时间: 2024-11-23 05:59:55
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
58页 924K
描述
32-Bit, 192-kHz Sampling, Advanced Segment, Stereo Audio Digital-to-Analog Converter

PCM1795 数据手册

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PCM1795  
www.ti.com ........................................................................................................................................................................................................ SLES248MAY 2009  
32-Bit, 192-kHz Sampling, Advanced Segment,  
Stereo Audio Digital-to-Analog Converter  
1
FEATURES  
APPLICATIONS  
A/V Receivers  
SACD Players  
DVD Players  
HDTV Receivers  
Car Audio Systems  
Digital Multitrack Recorders  
Other Applications Requiring 32-Bit Audio  
234567  
32-Bit Resolution  
Analog Performance:  
Dynamic Range: 123 dB  
THD+N: 0.0005%  
Differential Current Output: 3.9 mAPP  
8× Oversampling Digital Filter:  
Stop Band Attenuation: –98 dB  
Passband Ripple: ±0.0002 dB  
DESCRIPTION  
Sampling Frequency: 10 kHz to 200 kHz  
The PCM1795 is a monolithic CMOS integrated  
circuit  
System Clock: 128, 192, 256, 384, 512, or  
768 fS With Autodetect  
that  
includes  
stereo  
digital-to-analog  
converters (DACs) and support circuitry in a small  
SSOP-28 package. The data converters use TI’s  
advanced segment DAC architecture to achieve  
excellent dynamic performance and improved  
tolerance to clock jitter. The PCM1795 provides  
balanced current outputs, allowing the user to  
optimize analog performance externally. The  
PCM1795 accepts pulse code modulation (PCM) and  
direct stream digital (DSD) audio data formats,  
providing an easy interface to audio digital signal  
processors (DSPs) and decoder chips. The PCM1795  
also interfaces with external digital filter devices such  
as the DF1704, DF1706, and the PMD200 from  
Pacific Microsonics™. 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 that supports register write and readback  
functions. The PCM1795 also supports the  
time-division-multiplexed (TDM) command and audio  
(TDMCA) data format.  
Accepts 16-, 24-, and 32-Bit Audio Data  
PCM Data Formats: Standard, I2S™, and  
Left-Justified  
DSD Format Interface Available  
Interface Available for Optional External Digital  
Filter or DSP  
TDMCA or Serial Port (SPI™/I2C™)  
User-Programmable Mode Controls:  
Digital Attenuation: 0 dB to –120 dB,  
0.5-dB/Step  
Digital De-Emphasis  
Digital Filter Roll-Off: Sharp or Slow  
Soft Mute  
Zero Flag for Each Output  
Compatible With PCM1792A and PCM1796  
(Pins and Mode Controls)  
Dual Supply Operation:  
5-V Analog, 3.3-V Digital  
5-V Tolerant Digital Inputs  
Small SSOP-28 Package  
1
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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System Two, Audio Precision are trademarks of Audio Precision, Inc.  
SPI is a trademark of Motorola.  
I2S, I2C are trademarks of NXP Semiconductors.  
Pacific Microsonics is a trademark of Pacific Microsonics, Inc.  
Super Audio CD is a trademark of Sony Corporation.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2009, Texas Instruments Incorporated  

PCM1795 替代型号

型号 品牌 替代类型 描述 数据表
PCM1794A TI

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PCM1792A TI

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PCM1796 TI

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