Datasheet
SRC4392
SBFS029D –DECEMBER 2005–REVISED DECEMBER 2012
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The DIR and DIT are compatible with the AES3,
APPLICATIONS
S/PDIF, IEC 60958, and EIAJ CP-1201 interface
• DIGITAL AUDIO RECORDERS AND
standards. The audio serial ports, DIT, and SRC may
MIXING DESKS
be operated at sampling rates up to 216kHz. The DIR
• DIGITAL AUDIO INTERFACES FOR
lock range includes sampling rates from 20kHz to
216kHz.
COMPUTERS
• DIGITAL AUDIO ROUTERS AND
The SRC4392 is configured using on-chip control
DISTRIBUTION SYSTEMS
registers and data buffers, which are accessed
through either a 4-wire serial peripheral interface
• BROADCAST STUDIO EQUIPMENT
(SPI) port, or a 2-wire Philips I
2
C bus interface.
• DVD/CD RECORDERS
Status registers provide access to a variety of flag
• SURROUND SOUND DECODERS AND
and error bits, which are derived from the various
A/V RECEIVERS
function blocks. An open drain interrupt output pin is
provided, and is supported by flexible interrupt
• CAR AUDIO SYSTEMS
reporting and mask options via control register
settings. A master reset input pin is provided for
DESCRIPTION
initialization by a host processor or supervisory
The SRC4392 is a highly-integrated CMOS device
functions.
designed for use in professional and broadcast digital
The SRC4392 requires a +1.8V core logic supply, in
audio systems. The SRC4392 combines a high-
addition to a +3.3V supply for powering portions of
performance, two-channel, asynchronous sample rate
the DIR, DIT, and line driver and receiver functions. A
converter (SRC) with a digital audio interface receiver
separate logic I/O supply supports operation from
(DIR) and transmitter (DIT), two audio serial ports,
+1.65V to +3.6V, providing compatibility with low
and flexible distribution logic for interconnection of the
voltage logic interfaces typically found on digital
function block data and clocks.
signal processors and programmable logic devices.
The SRC4392 is available in a QFN-40 and a lead-
free, TQFP-48 package. The TQFN-48 is pin- and
register-compatible with the Texas Instruments
SRC4382 and DIX4192 products.
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