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PDF PCM1792A Data sheet ( Hoja de datos )
| Número de pieza | PCM1792A | |
| Descripción | audio stereo digital-to-analog converter | |
| Fabricantes | Burr-Brown | |
| Logotipo |  |
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BurrĆBrown Products
from Texas Instruments
PCM1792A
SLES105B − FEBRUARY 2004 − REVISED NOVEMBER 2006
24ĆBIT, 192ĆkHz SAMPLING, ADVANCED SEGMENT,
AUDIO STEREO DIGITALĆTOĆANALOG CONVERTER
www.DataSheet4U.com
FEATURES
D 24-Bit Resolution
D Analog Performance:
− Dynamic Range:
− 132 dB (9 V rms, Mono)
− 129 dB (4.5 V rms, Stereo)
− 127 dB (2 V rms, Stereo)
− THD+N: 0.0004%
D Differential Current Output: 7.8 mA p-p
D 8× Oversampling Digital Filter:
− Stop-Band Attenuation: –130 dB
− Pass-Band Ripple: ±0.00001 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
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 Player
D DVD Players
D HDTV Receivers
D Car Audio Systems
D Digital Multitrack Recorders
D Other Applications Requiring 24-Bit Audio
DESCRIPTION
The PCM1792A 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 PCM1792A
provides balanced current outputs, allowing the user to
optimize analog performance externally. The PCM1792A
accepts PCM and DSD audio data formats, providing easy
interfacing to audio DSP and decoder chips. The
PCM1792A also interfaces with 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 PCM1792A 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.
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 2006, Texas Instruments Incorporated
1 page  
www.ti.com
PCM1792A
SLES105B − FEBRUARY 2004 − REVISED NOVEMBER 2006
ELECTRICAL CHARACTERISTICS (Continued)
all specifications at TA = 25°C, VCC1 = VCC2L = VCC2R = 5 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data unless otherwise noted
PARAMETER
TEST CONDITIONS
PCM1792ADB
MIN TYP MAX
UNIT
POWER SUPPLY REQUIREMENTS
VDD
VCC1
VCC2L
Voltage range
3 3.3
3.6 Vdc
4.75 5 5.25 Vdc
VCC2R
IDD Supply current (1)
ICC Supply current (1)
Power dissipation (1)
TEMPERATURE RANGE
fS = 44.1 kHz
fS = 96 kHz
fS = 192 kHz
fS = 44.1 kHz
fS = 96 kHz
fS = 192 kHz
fS = 44.1 kHz
fS = 96 kHz
fS = 192 kHz
12 15
23 mA
45
33 40
35 mA
37
205 250
250 mW
335
Operation temperature
–25 85 °C
θJA Thermal resistance
(1) Input is BPZ data.
28-pin SSOP
100 °C/W
PIN ASSIGNMENTS
ZEROL
ZEROR
MSEL
LRCK
DATA
BCK
SCK
DGND
VDD
MS
MDI
MC
MDO
RST
PCM1792A
(TOP VIEW)
1 28
2 27
3 26
4 25
5 24
6 23
7 22
8 21
9 20
10 19
11 18
12 17
13 16
14 15
VCC2L
AGND3L
IOUTL−
IOUTL+
AGND2
VCC1
VCOML
VCOMR
IREF
AGND1
IOUTR−
IOUTR+
AGND3R
VCC2R
5
5 Page 
www.ti.com
ANALOG DYNAMIC PERFORMANCE
Supply Voltage Characteristics
TOTAL HARMONIC DISTORTION + NOISE
vs
SUPPLY VOLTAGE
0.01
PCM1792A
SLES105B − FEBRUARY 2004 − REVISED NOVEMBER 2006
DYNAMIC RANGE
vs
SUPPLY VOLTAGE
132
0.001
fS = 192 kHz
0.0001
4.50
132
fS = 96 kHz
fS = 48 kHz
4.75 5.00 5.25
VCC − Supply Voltage − V
Figure 11
SIGNAL-to-NOISE RATIO
vs
SUPPLY VOLTAGE
5.50
130
fS = 96 kHz
128 fS = 48 kHz
fS = 192 kHz
126
124
122
4.50
130
4.75 5.00 5.25
VCC − Supply Voltage − V
Figure 12
CHANNEL SEPARATION
vs
SUPPLY VOLTAGE
5.50
130
fS = 96 kHz
128 fS = 192 kHz
fS = 48 kHz
126
128
126
fS = 192 kHz
124
fS = 96 kHz
fS = 48 kHz
124 122
122
4.50 4.75 5.00 5.25 5.50
120
4.50 4.75 5.00 5.25
VCC − Supply Voltage − V
Figure 13
VCC − Supply Voltage − V
Figure 14
NOTE: PCM mode, TA = 25°C, VDD = 3.3 V, measurement circuit is Figure 37 (VOUT = 4.5 V rms).
5.50
11
11 Page | ||
| Páginas | Total 59 Páginas | |
| PDF Descargar | [ Datasheet PCM1792A.PDF ] | |
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