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SRC4382I Datasheet Preview

SRC4382I Datasheet

Asynchronous Sample-Rate Converter

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BurrĆBrown Products
from Texas Instruments
SRC4382
SRC4382
SBFS030C – JANUARY 2006 – REVISED SEPTEMBER 2007
Two-Channel, Asynchronous Sample Rate Converter with
Integrated Digital Audio Interface Receiver and Transmitter
FEATURES
1
234 Two-Channel Asynchronous Sample Rate
Converter (SRC)
– Dynamic Range with –60dB Input
(A-Weighted): 128dB typical
– Total Harmonic Distortion and Noise
(THD+N) with Full-Scale Input: –125dB
typical
– Supports Audio Input and Output Data
Word Lengths Up to 24 Bits
– Supports Input and Output Sampling
Frequencies Up to 216kHz
– Automatic Detection of the Input-to-Output
Sampling Ratio
– Wide Input-to-Output Conversion Range:
16:1 to 1:16 Continuous
– Excellent Jitter Attenuation Characteristics
– Digital De-Emphasis Filtering for 32kHz,
44.1kHz, and 48kHz Input Sampling Rates
– Digital Output Attenuation and Mute
Functions
– Output Word Length Reduction
– Status Registers and Interrupt Generation
for Sampling Ratio and Ready Flags
Digital Audio Interface Transmitter (DIT)
– Supports Sampling Rates Up to 216kHz
– Includes Differential Line Driver and
CMOS Buffered Outputs
– Block-Sized Data Buffers for Both Channel
Status and User Data
– Status Registers and Interrupt Generation
for Flag and Error Conditions
User-Selectable Serial Host Interface: SPI or
Philips I2C™
– Provides Access to On-Chip Registers and
Data Buffers
U.S. Patent No. 7,262,716
Digital Audio Interface Receiver (DIR)
– PLL Lock Range Includes Sampling Rates
from 20kHz to 216kHz
– Includes Four Differential Input Line
Receivers and an Input Multiplexer
– Bypass Multiplexer Routes Line Receiver
Outputs to Line Driver and Buffer Outputs
– Block-Sized Data Buffers for Both Channel
Status and User Data
– Automatic Detection of Non-PCM Audio
Streams (DTS CD/LD and IEC 61937
formats)
– Audio CD Q-Channel Sub-Code Decoding
and Data Buffer
– Status Registers and Interrupt Generation
for Flag and Error Conditions
– Low Jitter Recovered Clock Output
Two Audio Serial Ports (Ports A and B)
– Synchronous Serial Interface to External
Signal Processors, Data Converters, and
Logic
– Slave or Master Mode Operation with
Sampling Rates up to 216kHz
– Supports Left-Justified, Right-Justified, and
Philips I2S™ Data Formats
– Supports Audio Data Word Lengths Up to
24 Bits
Four General-Purpose Digital Outputs
– Multifunction Programmable Via Control
Registers
Extensive Power-Down Support
– Functional Blocks May Be Disabled
Individually When Not In Use
Operates From +1.8V Core and +3.3V I/O
Power Supplies
Small TQFP-48 Package, Compatible with the
SRC4392 and DIX4192
1
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.
Dolby is a registered trademark of Dolby Laboratories.
2
I2C, I2S are trademarks of Koninklijke Philips Electronics N.V.
3
All other trademarks are the property of their respective owners.
4
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2007, Texas Instruments Incorporated




etcTI

SRC4382I Datasheet Preview

SRC4382I Datasheet

Asynchronous Sample-Rate Converter

No Preview Available !

SRC4382
SBFS030C – JANUARY 2006 – REVISED SEPTEMBER 2007
APPLICATIONS
DIGITAL AUDIO RECORDERS AND
MIXING DESKS
DIGITAL AUDIO INTERFACES FOR
COMPUTERS
DIGITAL AUDIO ROUTERS AND
DISTRIBUTION SYSTEMS
BROADCAST STUDIO EQUIPMENT
DVD/CD RECORDERS
SURROUND SOUND DECODERS AND
A/V RECEIVERS
CAR AUDIO SYSTEMS
www.ti.com
DESCRIPTION
The SRC4382 is a highly-integrated CMOS device
designed for use in professional and broadcast digital
audio systems. The SRC4382 combines a
high-performance, two-channel, asynchronous
sample rate converter (SRC) with a digital audio
interface receiver (DIR) and transmitter (DIT), two
audio serial ports, and flexible distribution logic for
interconnection of the function block data and clocks.
The DIR and DIT are compatible with the AES3,
S/PDIF, IEC 60958, and EIAJ CP-1201 interface
standards. The audio serial ports, DIT, and SRC may
be operated at sampling rates up to 216kHz. The DIR
lock range includes sampling rates from 20kHz to
216kHz.
The SRC4382 is configured using on-chip control
registers and data buffers, which are accessed
through either a 4-wire serial peripheral interface
(SPI) port, or a 2-wire Philips I2C bus interface.
Status registers provide access to a variety of flag
and error bits, which are derived from the various
function blocks. An open drain interrupt output pin is
provided, and is supported by flexible interrupt
reporting and mask options via control register
settings. A master reset input pin is provided for
initialization by a host processor or supervisory
functions.
The SRC4382 requires a +1.8V core logic supply, in
addition to a +3.3V supply for powering portions of
the DIR, DIT, and line driver and receiver functions. A
separate logic I/O supply supports operation from
+1.65V to +3.6V, providing compatibility with low
voltage logic interfaces typically found on digital
signal processors and programmable logic devices.
The SRC4382 is available in a lead-free, TQFP-48
package, and is pin- and register-compatible with the
Texas Instruments SRC4392 and DIX4192 products.
2
Submit Documentation Feedback
Product Folder Link(s): SRC4382
Copyright © 2006–2007, Texas Instruments Incorporated


Part Number SRC4382I
Description Asynchronous Sample-Rate Converter
Maker etcTI
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