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PCM1795 Datasheet(PDF) 1 Page - Texas Instruments |
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PCM1795 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 58 page  1 FEATURES APPLICATIONS DESCRIPTION PCM1795 www.ti.com ........................................................................................................................................................................................................ SLES248 – MAY 2009 32-Bit, 192-kHz Sampling, Advanced Segment, Stereo Audio Digital-to-Analog Converter • A/V Receivers 234567 • 32-Bit Resolution • SACD Players • Analog Performance: • DVD Players – Dynamic Range: 123 dB • HDTV Receivers – THD+N: 0.0005% • Car Audio Systems • Differential Current Output: 3.9 mA PP • Digital Multitrack Recorders • 8× Oversampling Digital Filter: • Other Applications Requiring 32-Bit Audio – Stop Band Attenuation: –98 dB – Passband Ripple: ±0.0002 dB • Sampling Frequency: 10 kHz to 200 kHz The PCM1795 is a monolithic CMOS integrated • System Clock: 128, 192, 256, 384, 512, or circuit that includes stereo digital-to-analog 768 fS With Autodetect converters (DACs) and support circuitry in a small SSOP-28 package. The data converters use TI’s • Accepts 16-, 24-, and 32-Bit Audio Data advanced segment DAC architecture to achieve • PCM Data Formats: Standard, I2S™, and excellent dynamic performance and improved Left-Justified tolerance to clock jitter. The PCM1795 provides • DSD Format Interface Available balanced current outputs, allowing the user to optimize analog performance externally. The • Interface Available for Optional External Digital PCM1795 accepts pulse code modulation (PCM) and Filter or DSP direct stream digital (DSD) audio data formats, • TDMCA or Serial Port (SPI™/I2C™) providing an easy interface to audio digital signal • User-Programmable Mode Controls: processors (DSPs) and decoder chips. The PCM1795 also interfaces with external digital filter devices such – Digital Attenuation: 0 dB to –120 dB, as the DF1704, DF1706, and the PMD200 from 0.5-dB/Step Pacific Microsonics™. Sampling rates up to 200 kHz – Digital De-Emphasis are supported. A full set of user-programmable – Digital Filter Roll-Off: Sharp or Slow functions is accessible through an SPI or I2C serial control port that supports register write and readback – Soft Mute functions. The PCM1795 also supports the – Zero Flag for Each Output time-division-multiplexed (TDM) command and audio • Compatible With PCM1792A and PCM1796 (TDMCA) data format. (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. 2 System Two, Audio Precision are trademarks of Audio Precision, Inc. 3 SPI is a trademark of Motorola. 4 I2S, I2C are trademarks of NXP Semiconductors. 5 Pacific Microsonics is a trademark of Pacific Microsonics, Inc. 6 Super Audio CD is a trademark of Sony Corporation. 7 All other trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Copyright © 2009, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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