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

+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

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 AND OUTPUT SAMPLING

RATES UP TO 212kHz

q DYNAMIC RANGE: 128dB (–60dbFS input,

q THD+N: –125dB (0dbFS input, BW = 20Hz to

q ATTENUATES SAMPLING AND REFERENCE

CLOCK JITTER

q HIGH PERFORMANCE, LINEAR PHASE

DIGITAL FILTERING

q FLEXIBLE AUDIO SERIAL PORTS:

Master or Slave Mode Operation

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

INTERPOLATION FILTER

q SOFT MUTE FUNCTION

q BYPASS MODE

q POWER DOWN MODE

q OPERATES FROM A SINGLE +3.3 VOLT

POWER SUPPLY

q SMALL SSOP-28 PACKAGE

q PIN COMPATIBLE WITH THE SRC4192,

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

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