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SRC4192 Datasheet

  • SRC4192

  • 192kHz Stereo Asynchronous Sample Rate Converters

  • 1031.44KB

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SRC
419
2
SRC
419
3
SRC4192
(1)
SRC4193
(1)
SBFS022A 鈥?JULY 2003
192kHz Stereo Asynchronous
Sample Rate Converters
FEATURES
q
AUTOMATIC SENSING OF THE INPUT-TO-
OUTPUT SAMPLING RATIO
q
WIDE INPUT-TO-OUTPUT SAMPLING RANGE:
16:1 to 1:16
q
SUPPORTS INPUT & OUTPUT SAMPLING
RATES UP TO 212kHz
q
DYNAMIC RANGE: 144dB (-60dbFS input,
BW = 20Hz to f
S
/2, A-Weighted)
q
THD+N: -140dB (0dbFS input, BW = 20Hz to
f
S
/2)
q
ATTENUATES SAMPLING AND REFERENCE
CLOCK JITTER
q
HIGH PERFORMANCE, LINEAR PHASE
DIGITAL FILTERING WITH BETTER THAN
140dB OF STOP BAND ATTENUATION
q
FLEXIBLE AUDIO SERIAL PORTS:
Master or Slave Mode Operation
Supports I
2
S, Left Justified, Right Justified, and
TDM Data Formats
Supports 16, 18, 20, or 24-Bit Audio Data
TDM Mode allows daisy chaining of up to eight
devices
q
SUPPORTS 24-, 20-, 18-, or 16-BIT INPUT AND
OUTPUT DATA
All output data is dithered from the internal
28-Bit data path
q
LOW GROUP DELAY OPTION FOR INTERPO-
LATION FILTER
q
DIRECT DOWNSAMPLING OPTION FOR
DECIMATION FILTER (SRC4193 ONLY)
q
SPI PORT PROVIDES ACCESS TO INTERNAL
CONTROL REGISTERS (SRC4193 ONLY)
q
SOFT MUTE FUNCTION
q
BYPASS MODE
q
PROGRAMMABLE DIGITAL OUTPUT
ATTENUATION (SRC4193 ONLY)
256 steps: 0dB to 鈥?27.5dB, 0.5dB/step
(1) Patents Pending.
(2) Refer to the Applications Information section of this data sheet for details.
q
POWER DOWN MODE
q
OPERATES FROM A SINGLE +3.3 VOLT
POWER SUPPLY
q
SMALL 28-LEAD SSOP PACKAGE
q
PIN COMPATIBLE WITH THE AD1896
(SRC4192 ONLY)
(2)
APPLICATIONS
q
DIGITAL MIXING CONSOLES
q
DIGITAL AUDIO WORKSTATIONS
q
AUDIO DISTRIBUTION SYSTEMS
q
BROADCAST STUDIO EQUIPMENT
q
HIGH-END A/V RECEIVERS
q
GENERAL DIGITAL AUDIO PROCESSING
DESCRIPTION
The SRC4192 and SRC4193 are asynchronous sample rate
converters designed for professional and broadcast audio
applications. The SRC4192 and SRC4193 combine a wide
input-to-output sampling ratio with outstanding dynamic range
and ultra low distortion. Input and output serial ports support
standard audio formats, as well as a Time Division Multi-
plexed (TDM) mode. Flexible audio interfaces allow the
SRC4192 and SRC4193 to connect to a wide range of audio
data converters, digital audio receivers and transmitters, and
digital signal processors.
The SRC4192 is a standalone pin programmed device, with
control pins for mode, data format, mute, bypass, and low
group delay functions. The SRC4193 is a software-controlled
device featuring a serial peripheral interface (SPI) port, which
is utilized to program all functions via internal control registers.
The SRC4192 and SRC4193 may be operated from a single
+3.3V power supply. A separate digital I/O supply (V
IO
)
operates over the +1.65V to +3.6V supply range, allowing
greater flexibility when interfacing to current and future gen-
eration signal processors and logic devices. Both the
SRC4192 and SRC4193 are available in a 28-lead SSOP
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.
All 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 漏 2003, Texas Instruments Incorporated
www.ti.com

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