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Details, datasheet, quote on part number:PCM1791A
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Datasheet text preview:
Burr Brown Products from Texas Instruments
PCM1791A
SLES071A - MARCH 2003 - REVISED JANUARY 2004
24 BIT, 192 kHz SAMPLING, ADVANCED SEGMENT, AUDIO STEREO DIGITAL TO ANALOG 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) Differential Voltage Output: 3.2 Vp-p 8× Oversampling Digital Filter: - Stop-Band Attenuation: 82 dB - Pass-Band Ripple: ±0.002 dB Sampling Frequency: 10 kHz to 200 kHz System Clock: 128, 192, 256, 384, 512, or 768 fS With Autodetect Accepts 16-, 20-, and 24-Bit Audio Data PCM Data Formats: Standard, I2S, and Left-Justified DSD Format Interface Available Optional Interface to External Digital Filter or DSP Available 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 Rolloff: Sharp or Slow - Soft Mute - Zero Flag for Each Output/PCM and DSD Formats Dual Supply Operation: - 5-V Analog, 3.3-V Digital
D 5-V Tolerant Digital Inputs D Small 28-Lead SSOP Package, Lead-Free
Product
D D D D D D D D D D
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-divisionmultiplexed command and audio (TDMCA) data format.
D
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.
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.
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
PCM1791A
www.ti.com SLES071A - MARCH 2003 - REVISED JANUARY 2004
ORDERING INFORMATION
PRODUCT PACKAGE PACKAGE CODE OPERATION TEMPERATURE RANGE -25°C to 85°C PACKAGE MARKING PCM1791A ORDERING NUMBER PCM1791ADB PCM1791ADBR TRANSPORT MEDIA Tube Tape and reel
PCM1791ADB
28-lead SSOP
28DB
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1) PCM1791A Supply voltage VCCF, VCCL, VCCC, VCCR VDD -0.3 V to 6.5 V -0.3 V to 4 V ±0.1 V ±0.1 V 0.3 V to 6.5 V 0.3 V to (VDD + 0.3 V) < 4 V 0.3 V to (VCC + 0.3 V) < 6.5 V ±10 mA 40°C to 125°C 55°C to 150°C 150°C 260°C, 5 s 260°C
Supply voltage differences: VCCF, VCCL, VCCC, VCCR Ground voltage differences: AGNDF, AGNDL, AGNDC, AGNDR, DGND LRCK, DATA, BCK, SCK, MS(2), MDI(2), MC, MUTE, RST, MSEL Digital input voltage ZEROL, ZEROR, MDO, MS(3), MDI(3) Analog input voltage Input current (any pins except supplies) Ambient temperature under bias Storage temperature Junction temperature Lead temperature (soldering) Package temperature (IR reflow, peak)
(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) Input mode or I2C mode. (3) Output mode except for I2C mode.
ELECTRICAL CHARACTERISTICS
all specifications at TA = 25°C, VCC = 5 V, VDD = 3.3 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data, unless otherwise noted PCM1791ADB PARAMETER RESOLUTION DATA FORMAT (PCM Mode) Audio data interface format Audio data bit length Audio data format fS Sampling frequency System clock frequency DATA FORMAT (DSD Mode) Audio data interface format Audio data bit length fS Sampling frequency System clock frequency 2.8224 DSD (Direct stream digital) 1 Bit 2.8224 11.2896 MHz MHz Standard, I2S, left justified 16-, 20-, 24-bit selectable MSB first, 2s complement 10 200 kHz 128, 192, 256, 384, 512, 768 fS MIN TYP 24 MAX UNIT Bits
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PCM1791A
www.ti.com SLES071A - MARCH 2003 - REVISED JANUARY 2004
ELECTRICAL CHARACTERISTICS (Continued)
all specifications at TA = 25°C, VCC = 5 V, VDD = 3.3 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data, unless otherwise noted PCM1791ADB PARAMETER DIGITAL INPUT/OUTPUT Logic family VIH VIL IIH IIL VOH VOL Input logic level Input logic current Output logic level VIN = VDD VIN = 0 V IOH = 2 mA IOL = 2 mA VOUT = VDD VOUT = 0 V fS = 44.1 kHz fS = 96 kHz fS = 192 kHz EIAJ, A-weighted, fS = 44.1 kHz Dynamic range EIAJ, A-weighted, fS = 96 kHz EIAJ, A-weighted, fS = 192 kHz EIAJ, A-weighted, fS = 44.1 kHz Signal-to-noise ratio EIAJ, A-weighted, fS = 96 kHz EIAJ, A-weighted, fS = 192 kHz Channel separation Level linearity error DYNAMIC PERFORMANCE (DSD MODE) (2) (3) THD+N at VOUT = 0 dB Dynamic range Signal-to-noise ratio ANALOG OUTPUT Gain error Gain mismatch, channel-to-channel Bipolar zero error Differential output voltage (4) Bipolar zero voltage (4) Load impedance (4) At BPZ Full scale (0 dB) At BPZ 8 3 2 ±3 ±0.5 ±0.5 3.2 1.4 8 3 2 % of FSR % of FSR % of FSR V p-p V 2.1 V rms 60 dB, EIAJ, A-weighted EIAJ, A-weighted 0.001% 113 113 dB dB fS = 44.1 kHz fS = 96 kHz fS = 192 kHz VOUT = 120 dB 106 110 110 0.001% 0.0015% 0.003% 113 113 113 113 113 113 110 110 109 ±1 dB dB dB dB 2.4 0.4 10 -10 0.002% VDC µA TTL compatible 2 0.8 10 10 VDC µA TEST CONDITIONS MIN TYP MAX UNIT
IOHZ High-impedance output logic current (1) IOLZ DYNAMIC PERFORMANCE (PCM MODE) (2)
THD+N at VOUT = 0 dB
R1 = R2 1.7 k (1) MDO pin (2) Dynamic performance and DC accuracy are specified at the output of the postamplifier as shown in Figure 36. Analog performance specifications are measured using the System Twot Cascade audio measurement system by Audio Precisiont in the averaging mode. For all sampling-frequency operations, measurement bandwidth is limited with a 20-kHz AES17 filter. (3) Analog performance in the DSD mode is specified as the DSD modulation index of 100%. This is equivalent to PCM-mode performance at 44.1 kHz and 64 fS. (4) These parameters are defined at the PCM1791A output pins. Load impedances, R1 and R2, are input resistors of the postamplifier. They are defined as dc loads.
Audio Precision and System Two are trademarks of Audio Precision, Inc. Other trademarks are the property of their respective owners. 3
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