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Número de pieza | PCM1798 | |
Descripción | AUDIO STEREO DIGITAL TO ANALOG CONVERTER | |
Fabricantes | Burr-Brown | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de PCM1798 (archivo pdf) en la parte inferior de esta página. Total 25 Páginas | ||
No Preview Available ! BurrĆBrown Products
from Texas Instruments
PCM1798
SLES102 – DECEMBER 2003
24ĆBIT, 192ĆkHz SAMPLING, ADVANCED SEGMENT,
AUDIO STEREO DIGITALĆTOĆANALOG CONVERTER
FEATURES
D 24-Bit Resolution
D Analog Performance:
− Dynamic Range: 123 dB
− THD+N: 0.0005%
D Differential Current Output: 4 mA p-p
D 8× Oversampling Digital Filter:
− Stop-Band Attenuation: –98 dB
− Pass-Band Ripple: ±0.0002 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- and 24-Bit Audio Data
D PCM Data Formats: Standard, I2S, and
Left-Justified
D Interface Available for Optional External
Digital Filter or DSP
D Digital De-Emphasis
D Digital Filter Rolloff: Sharp or Slow
D Soft Mute
D Zero Flag
D 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 Pin Assignment Compatible With PCM1794
APPLICATIONS
D A/V Receivers
D DVD Players
D Musical Instruments
D HDTV Receivers
D Car Audio Systems
D Digital Multitrack Recorders
D Other Applications Requiring 24-Bit Audio
DESCRIPTION
The PCM1798 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 PCM1798 provides balanced
current outputs, allowing the user to optimize analog
performance externally. Sampling rates up to 200 kHz are
supported.
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 2003, Texas Instruments Incorporated
1 page www.ti.com
PIN ASSIGNMENTS
MONO
CHSL
DEM
LRCK
DATA
BCK
SCK
DGND
VDD
MUTE
FMT0
FMT1
ZERO
RST
PCM1798
(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
PCM1798
SLES102 – DECEMBER 2003
5
5 Page www.ti.com
Temperature Characteristics
TOTAL HARMONIC DISTORTION + NOISE
vs
FREE-AIR TEMPERATURE
0.01
0.001
fS = 96 kHz
fS = 192 kHz
fS = 48 kHz
0.0001
−50
−25 0
25 50 75
TA – Free-Air Temperature – °C
Figure 11
100
PCM1798
SLES102 – DECEMBER 2003
DYNAMIC RANGE
vs
FREE-AIR TEMPERATURE
126
124 fS = 96 kHz
122 fS = 48 kHz
fS = 192 kHz
120
118
116
−50
−25 0
25 50 75
TA – Free-Air Temperature – °C
Figure 12
100
SIGNAL-to-NOISE RATIO
vs
FREE-AIR TEMPERATURE
126
124
fS = 96 kHz
122
fS = 192 kHz
fS = 48 kHz
120
CHANNEL SEPARATION
vs
FREE-AIR TEMPERATURE
122
120 fS = 96 kHz
118 fS = 192 kHz
fS = 48 kHz
116
118 114
116
−50
−25 0
25 50 75
TA – Free-Air Temperature – °C
Figure 13
100
112
−50
NOTE: PCM mode, VDD = 3.3 V, VCC = 5 V, measurement circuit is Figure 24.
−25 0
25 50 75
TA – Free-Air Temperature – °C
Figure 14
100
11
11 Page |
Páginas | Total 25 Páginas | |
PDF Descargar | [ Datasheet PCM1798.PDF ] |
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