SRC4190
(1)
192kHz Stereo Asynchronous
Sample Rate Converters
DESCRIPTION
The SRC4190 is an asynchronous sample rate converter
designed for professional and broadcast audio applications.
The SRC4190 combines a wide input-to-output sampling
ratio with outstanding dynamic range and low distortion.
Input and output serial ports support standard audio formats,
as well as a Time Division Multiplexed (TDM) mode. Flexible
audio interfaces allow the SRC4190 to connect to a wide
range of audio data converters, digital audio receivers and
transmitters, and digital signal processors.
The SRC4190 is a standalone pin-programmed device, with
control pins for mode, data format, mute, bypass, and low
group delay functions.
The SRC4190 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 generation signal
processors and logic devices. The SRC4190 is available in
a SSOP-28 package.
FEATURES
● AUTOMATIC SENSING OF THE INPUT-TO-
OUTPUT SAMPLING RATIO
● WIDE INPUT-TO-OUTPUT SAMPLING RANGE:
16:1 to 1:16
● SUPPORTS INPUT AND OUTPUT SAMPLING
RATES UP TO 212kHz
● DYNAMIC RANGE: 128dB (–60dbFS input,
BW = 20Hz to f
S
/2, A-Weighted)
● THD+N: –125dB (0dbFS input, BW = 20Hz to
f
S
/2)
● ATTENUATES SAMPLING AND REFERENCE
CLOCK JITTER
● HIGH PERFORMANCE, LINEAR PHASE
DIGITAL FILTERING
● 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
● SUPPORTS 24-, 20-, 18-, or 16-BIT INPUT AND
OUTPUT DATA
All output data is dithered from the internal
28-Bit data path
● LOW GROUP DELAY OPTION FOR
INTERPOLATION FILTER
● SOFT MUTE FUNCTION
● BYPASS MODE
● POWER DOWN MODE
● OPERATES FROM A SINGLE +3.3 VOLT
POWER SUPPLY
● SMALL SSOP-28 PACKAGE
● PIN COMPATIBLE WITH THE SRC4192,
AD1895, AND AD1896
(2)
APPLICATIONS
● DIGITAL MIXING CONSOLES
● DIGITAL AUDIO WORKSTATIONS
● AUDIO DISTRIBUTION SYSTEMS
● BROADCAST STUDIO EQUIPMENT
● HIGH-END A/V RECEIVERS
● GENERAL DIGITAL AUDIO PROCESSING
www.ti.com
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 © 2003-2007, Texas Instruments Incorporated
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.
SBFS023B – JUNE 2003 – REVISED SEPTEMBER 2007
All trademarks are the property of their respective owners.
(1) U.S. Patent No. 7,262,716.
(2) Refer to the Applications Information section of this data sheet for details.
SRC4190
