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PCM1791ADBRG4 Datasheet(PDF) 1 Page - Texas Instruments |
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PCM1791ADBRG4 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 61 page  PCM1791A SLES071B − MARCH 2003 − REVISED NOVEMBER 2006 24BIT, 192kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITALTOANALOG CONVERTER FEATURES D 24-Bit Resolution D Analog Performance: − Dynamic Range: 113 dB − THD+N: 0.001% − Full-Scale Output: 2.1 V RMS (at Postamp) D Differential Voltage Output: 3.2 Vp-p D 8× Oversampling Digital Filter: − Stop-Band Attenuation: –82 dB − Pass-Band Ripple: ±0.002 dB D Sampling Frequency: 10 kHz to 200 kHz D System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect D Accepts 16-, 20-, and 24-Bit Audio Data D PCM Data Formats: Standard, I2S, and Left-Justified D DSD Format Interface Available D Optional Interface to External Digital Filter or DSP Available D TDMCA or Serial Port (SPI/I2C) D 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 − Zero Flag for Each Output/PCM and DSD Formats D Dual Supply Operation: − 5-V Analog, 3.3-V Digital D 5-V Tolerant Digital Inputs D Small 28-Lead SSOP Package APPLICATIONS D A/V Receivers D SACD Players D DVD Players D HDTV Receivers D Car Audio Systems D Digital Multitrack Recorders D Other Applications Requiring 24-Bit Audio DESCRIPTION The PCM1791A 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 PCM1791A provides balanced voltage outputs, allowing the user to optimize analog performance externally. The PCM1791A accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1791A also accepts interface to external digital filter devices (DF1704, DF1706, PMD200). 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, which supports register write and readback functions. The PCM1791A also supports the time-division- multiplexed command and audio (TDMCA) data format. 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. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. 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. BurrBrown Products from Texas Instruments Copyright 2006, Texas Instruments Incorporated |
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