PCM1795

更新时间： 2024-10-29 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

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PCM1795 数据手册

PCM1795

www.ti.com ........................................................................................................................................................................................................ SLES248–MAY 2009

32-Bit, 192-kHz Sampling, Advanced Segment,

Stereo Audio Digital-to-Analog Converter

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 mA_PP

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 f_SWith 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

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.

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.

12 3 4 5 6 7...58

中文翻译

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PCM1795 替代型号

型号	品牌	替代类型	描述	数据表
PCM1794A	TI	功能相似	132dB SNR 最高性能立体声 DAC（硬件控制）
PCM1792A	TI	功能相似	132dB SNR 最高性能立体声 DAC（软件控制）
PCM1796	TI	功能相似	123dB SNR 立体声 DAC（软件控制）

与PCM1795相关器件

型号	品牌	获取价格	描述	数据表
PCM1795DB	TI	获取价格	32-Bit, 192-kHz Sampling, Advanced Segment, Stereo Audio Digital-to-Analog Converter
PCM1795DBR	TI	获取价格	32-Bit, 192-kHz Sampling, Advanced Segment, Stereo Audio Digital-to-Analog Converter
PCM1796	BB	获取价格	24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
PCM1796	TI	获取价格	123dB SNR 立体声 DAC（软件控制）
PCM1796_06	BB	获取价格	24-BIT, 192-kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL-TO-ANALOG CONVERTER
PCM1796DB	BB	获取价格	24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
PCM1796DB	TI	获取价格	123dB SNR 立体声 DAC（软件控制） \| DB \| 28 \| -25 to 85
PCM1796DBR	BB	获取价格	24BIT 192 KHZ SAMPLING ADVANCED SEGMENT AUDIO STEREO DIGITAL TO ANALOG CONVERTER
PCM1796DBR	TI	获取价格	123dB SNR 立体声 DAC（软件控制） \| DB \| 28 \| -25 to 85
PCM1796DBRG4	TI	获取价格	SERIAL INPUT LOADING, 24-BIT DAC, PDSO28, GREEN, PLASTIC, SSOP-28

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