PCM1794 Digital-to-Analog Converter Datasheet

PCM1794 Datasheet, PDF, Equivalent


Part Number

PCM1794

Description

Audio Stereo Digital-to-Analog Converter

Manufacture

Burr-Brown

Total Page 30 Pages
Datasheet
Download PCM1794 Datasheet


PCM1794
BurrĆBrown Products
from Texas Instruments
PCM1794
SLES080C – MAY 2003 – REVISED NOVEMBER 2006
24ĆBIT, 192ĆkHz SAMPLING, ADVANCED SEGMENT,
AUDIO STEREO DIGITALĆTOĆANALOG CONVERTER
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- and 24-Bit Audio Data
D PCM Data Formats: Standard, I2S, and
Left-Justified
D Optional Interface Available to 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
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 PCM1794 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 PCM1794 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 2006, Texas Instruments Incorporated

PCM1794
PCM1794
SLES080C – MAY 2003 – REVISED NOVEMBER 2006
www.ti.com
ORDERING INFORMATION
PRODUCT
PACKAGE
PACKAGE CODE
OPERATION
TEMPERATURE
RANGE
PCM1794DB 28-lead SSOP
28DB
–25°C to 85°C
PACKAGE
MARKING
PCM1794
ORDERING
NUMBER
PCM1794DB
PCM1794DBR
TRANSPORT
MEDIA
Tube
Tape and reel
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range unless otherwise noted(1)
PCM1794
Supply voltage
VCC1, VCC2L, VCC2R
VDD
Supply voltage differences: VCC1, VCC2L, VCC2R
Ground voltage differences: AGND1, AGND2, AGND3L, AGND3R, DGND
–0.3 V to 6.5 V
–0.3 V to 4 V
±0.1 V
±0.1 V
Digital input voltage
LRCK, DATA, BCK, SCK, FMT1, FMT0, MONO, CHSL, DEM, MUTE, RST,
ZERO
Analog input voltage
Input current (any pins except supplies)
–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
Ambient temperature under bias
–40°C to 125°C
Storage temperature
–55°C to 150°C
Junction temperature
150°C
Lead temperature (soldering)
260°C, 5 s
Package temperature (IR reflow, peak)
250°C
(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.
ELECTRICAL CHARACTERISTICS
all specifications at TA = 25°C, VCC1 = VCC2L = VCC2R = 5 V, VDD = 3.3 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data, unless
otherwise noted
PARAMETER
TEST CONDITIONS
PCM1794DB
MIN TYP MAX
UNIT
RESOLUTION
24 Bits
DATA FORMAT
Audio data interface format
Standard, I2S, left justified
Audio data bit length
16-, 24-bit selectable
Audio data format
MSB first, 2s complement
fS Sampling frequency
System clock frequency
DIGITAL INPUT/OUTPUT
10 200
128, 192, 256, 384, 512, 768 fS
kHz
Logic family
TTL compatible
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
2
VDC
0.8
10
µA
–10
2.4
VDC
0.4
2


Features BurrĆBrown Products from Texas Instrume nts PCM1794 SLES080C – MAY 2003 – REVISED NOVEMBER 2006 24ĆBIT, 192ĆkH z SAMPLING, ADVANCED SEGMENT, AUDIO STE REO DIGITALĆTOĆANALOG CONVERTER FEAT URES D 24-Bit Resolution D Analog Perfo rmance: − Dynamic Range: 132 dB (9 V RMS, Mono) 129 dB (4.5 V RMS, Stereo) 1 27 dB (2 V RMS, Stereo) − THD+N: 0.00 04% D Differential Current Output: 7.8 mA p-p D 8× Oversampling Digital Filte r: − Stop-Band Attenuation: –130 dB − Pass-Band Ripple: ±0.00001 dB D S ampling 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 Forma ts: Standard, I2S, and Left-Justified D Optional Interface Available to Extern al Digital Filter or DSP D Digital De-E mphasis D Digital Filter Rolloff: Sharp or Slow D Soft Mute D Zero Flag D Dua l-Supply Operation: − 5-V Analog, 3.3 -V Digital D 5-V Tolerant Digital Input s D Small 28-Lead SSOP Package APPLICATIONS D A/V Receivers D DVD Players D Musical In.
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