PDF PCM4204 Data sheet ( Hoja de datos )

Número de pieza	PCM4204
Descripción	HIGH PERFORMANCE 24 BIT 216KHZ SAMPLING FOUR CHANNEL AUDIO ANALOG TO DIGITAL CONVERTER
Fabricantes	Burr-Brown Corporation
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PCM4204 www.DataSheet4U.com SBAS327A − JUNE 2004 − REVISED SEPTEMBER 2004 HighĆPerformance 24ĆBit, 216kHz Sampling FourĆChannel Audio AnalogĆtoĆDigital Converter FEATURES D Four High-Performance Delta-Sigma Analog-to-Digital Converters − 24-Bit Linear PCM or 1-Bit Direct Stream Digital (DSD) Output Data − Supports PCM Output Sampling Rates up to 216kHz − Supports 64fS and 128fS DSD Output Data Rates D Dynamic Performance: PCM Output − Dynamic Range: 118dB − THD+N: −105dB D Dynamic Performance: DSD Output − Dynamic Range: 115dB − THD+N: −103dB D Audio Serial Port − 24-Bit Linear PCM Output Data − Master or Slave Mode Operation − Supports Left-Justified, Right-Justified, I2S, and TDM Data Formats D DSD Data Port − Supports DSD Output or Input for All Four Channels Simultaneously − Input Mode Provides 1-Bit DSD to 24-Bit PCM Data Format Conversion D Additional PCM Output Features − Linear-Phase Digital Decimation Filter − Digital High-Pass Filter for DC Removal − Clipping Flag Output for Each Channel D Power Supplies: +5V Analog and +3.3V Digital D Power Dissipation: − fS = 48kHz: 600mW typical − fS = 96kHz: 640mW typical − fS = 192kHz: 615mW typical D Power-Down Mode D Available in a Thermally-Enhanced HTQFP-64 Package APPLICATIONS D Digital Recorders and Mixing Desks D Digital Audio Effects Processors D Broadcast Studio Equipment D Surround Sound Encoders D High-End A/V Receivers DESCRIPTION The PCM4204 is a high-performance, four-channel analog-to-digital (A/D) converter designed for professional and broadcast audio applications. The PCM4204 architecture utilizes a 1-bit delta-sigma modulator per channel incorporating a novel density modulated dither scheme for improved dynamic performance. The PCM4204 supports 24-bit linear PCM output data, with sampling frequencies up to 216kHz. The PCM4204 can also be configured to output either 64x or 128x oversampled, 1-bit direct stream digital (DSD) data for each channel. In addition, the PCM4204 supports a DSD input mode, allowing 1-bit DSD to 24-bit PCM data format conversion utilizing the on-chip digital decimation filter. These features make the PCM4204 suitable for a variety of digital audio recording and processing applications. The PCM4204 includes a flexible audio serial port inter- face, which supports standard PCM audio data formats, as well as time division multiplexed (TDM) PCM data formats. Multiple format support allows the system designer to choose the interface format that best suits the end applica- tion. Audio data format selection, sampling mode configu- ration, and high-pass filter functions are all programmed using dedicated control pins. The PCM4204 operates from a +5V analog power supply and a +3.3V digital power supply. The digital I/O pins are compatible with +3.3V logic families. The PCM4204 is available in a thermally-enhanced HTQFP-64 PowerPAD 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. PowerPAD is a registered trademark of Texas Instruments. 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 Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright  2004, Texas Instruments Incorporated www.ti.com 1 page PCM4204 www.ti.com SBAS327A − JUNE 200w4 w− RwE.DVIaStEaDSShEePeTtE4MUB.cEoRm2004 ELECTRICAL CHARACTERISTICS (continued) Unless otherwise noted, all characteristics specified with TA = +25°C, VCC = +5V, VDD = +3.3V, system clock (SCKI) is 512fS for Single Rate Sampling, 256fS for Dual Rate Sampling, or 128fS for Quad Rate Sampling. The device is operated in Master mode for all dynamic performance measurements. PCM4204 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DIGITAL DECIMATION FILTER (continued) Quad Rate Sampling Mode Passband Edge Passband Ripple Stop Band Edge Stop Band Attenuation Group Delay DIGITAL HIGH PASS FILTER −0.005dB −3dB 0.770fS −135 9.5/fS 0.375fS 0.490fS ±0.005 Hz Hz dB Hz dB sec Frequency Response (−3dB) POWER SUPPLY fS/48000 Hz Voltage Range VCC1, VCC2 VDD1, VDD2, VDD3 +4.75 +5.0 +5.25 VDC +3.0 +3.3 +3.6 VDC Power Down Supply Current ICC1 + ICC2 IDD1 + IDD2 + IDD3 VCC = +5V, VDD = +3.3V, RST = Low 10 mA 2 mA Quiescent Current ICC1 + ICC2 VCC = +5.0V fS = 48kHz(4) fS = 96kHz fS = 192kHz 108 130 mA 108 130 mA 108 130 mA IDD1 + IDD2 + IDD3 VDD = +3.3V fS = 48kHz(4) fS = 96kHz fS = 192kHz 18 23 mA 30 44 mA 23 26 mA Total Power Dissipation VCC = +5V, VDD = +3.3V fS = 48kHz(4) fS = 96kHz fS = 192kHz 600 726 mW 640 795 mW 615 736 mW (1) Applies to the FMT0, FMT1, FMT2, S/M, FS0, FS1, FS2, HPFD, BCK, LRCK, SUB, DSDCLK, DSD1, DSD2, DSD3, DSD4, and SCKI pins. (2) Applies to the TEST and RST pins. (3) Typical performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement bandwidth is limited using the Audio Precision 22Hz high-pass filter in combination with either a 20kHz low-pass filter for fS = 48kHz or a 40kHz low-pass filter for fS = 96kHz and 192kHz. All A-weighted measurements are performed using the A-weighting filter in combination with the band limiting filters already mentioned. The measurements are made with the RMS detector selected. (4) A 256fS system clock is used at final production test for fS = 48kHz measurements. (5) Typical DSD performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement bandwidth is limited using the Audio Precision 22Hz high-pass filter in combination with a 20kHz low-pass filter. All A-weighted measurements are performed using the A-weighting filter in combination with the band limiting filter already mentioned. The measurements are made with the RMS detector selected. The 1-bit DSD data is converted to 24-bit linear PCM data for measurement using a PCM4204 configured for DSD input mode. 5 5 Page PCM4204 www.ti.com SBAS327A − JUNE 200w4 w− RwE.DVIaSEtaDSShEePeTtE4MUB.cEoRm2004 TYPICAL CHARACTERISTICS (continued) At TA = +25°C with VCC = +5V, VDD = +3.3V, and a measurement bandwidth from 20Hz to 20kHz, unless otherwise noted. 5 −20 −40 −60 −80 −100 0 HIGH PASS FILTER STOP BAND CHARACTERISTICS 0.1 0.2 0.3 Normalized Frequency (fS/1000) 0.4 0.02 HIGH PASS FILTER PASSBAND CHARACTERISTICS 0 −0.02 −0.04 −0.06 −0.08 −0.1 0 0.5 1 1.5 2 2.5 3 3.5 4 Normalized Frequency (fS/1000) 0 −20 −40 −60 −80 −100 −120 −140 −160 −180 20 FFT PLOT (fS = 48kHz, fIN = 997Hz at −20dB) 100 1k Frequency (Hz) 10k 20k 0 −20 −40 −60 −80 −100 −120 −140 −160 −180 20 FFT PLOT (fS = 48kHz, fIN = 997Hz at −60dB) 100 1k Frequency (Hz) 10k 20k 0 −20 −40 −60 −80 −100 −120 −140 −160 −180 20 FFT PLOT (fS = 48kHz, No Input [Idle]) 100 1k Frequency (Hz) 10k 20k 0 −20 −40 −60 −80 −100 −120 −140 −160 −180 20 FFT PLOT (fS = 96kHz, fIN = 997Hz at −20dB) 100 1k Frequency (Hz) 10k 40k 11 11 Page

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