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DIR9001
SLES198–DECEMBER 2006
96-kHz, 24-Bit Digital Audio Interface Receiver
FEATURES
APPLICATIONS
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AV/DVD Receiver, AV Amplifier
Car or Mobile Audio System
Digital Television
Musical Instruments
Recording Systems
High-End Audio/Sound Card for PC
Replacement of DIR1703
Other Applications Requiring S/PDIF Receiver
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One-Chip Digital Audio Interface Receiver
(DIR) Including Low-Jitter Clock-Recovery
System
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Compliant With Digital Audio Interface
Standards: IEC60958 (former IEC958), JEITA
CPR-1205 (former EIAJ CP-1201, CP-340),
AES3, EBU tech3250
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Clock Recovery and Data Decode From
Biphase Input Signal, Generally Called S/PDIF,
EIAJ CP-1201, IEC60958, AES/EBU
DESCRIPTION
Biphase Input Signal Sampling Frequency (fS)
Range: 28 kHz to 108 kHz
The DIR9001 is a digital audio interface receiver that
can receive
a
28-kHz to 108-kHz sampling-
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Low-Jitter Recovered System Clock: 50 ps
Jitter Tolerance Compliant With IEC60958-3
frequency, 24-bit-data-word, biphase-encoded signal.
The DIR9001 complies with IEC60958-3, JEITA
CPR-1205 (Revised version of EIAJ CP-1201),
AES3, EBUtech3250, and it can be used in various
applications that require a digital audio interface.
Selectable Recovered System Clock: 128 fS,
256 fS, 384 fS, 512 fS
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Serial Audio Data Output Formats: 24-Bit I2S;
MSB-First, 24-Bit Left-Justified; MSB-First 16-,
24-Bit Right-Justified
The DIR9001 supports many output system clock
and output data formats and can be used flexibly in
many application systems. As the all functions which
the DIR9001 provides can be controlled directly
through control pins, it can be used easily in an
User Data, Channel-Status Data Outputs
Synchronized With Decoded Serial Audio Data
application system that does not have
a
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No External Clock Required for Decode
microcontroller. Also, as dedicated pins are provided
for the channel-status bit and user-data bit,
processing of their information can be easily
accomplished by connecting with a microcontroller,
DSP, etc.
Includes Actual Sampling Frequency
Calculator (Needs External 24.576-MHz Clock)
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Function Control: Parallel (Hardware)
Functions Similar and Pin Assignments
Equivalent to Those of DIR1703
The DIR9001 does not require an external clock
source or resonator for decode operation if the
internal actual-sampling-frequency calculator is not
used. Therefore, it is possible to reduce the cost of a
system.
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Single Power Supply: 3.3 V (2.7 V to 3.6 V)
Wide Operating Temperature Range: –40°C to
85°C
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5 V-Tolerant Digital Inputs
The operating temperature range of the DIR9001 is
specified as –40°C to 85°C, which makes it suitable
for automotive applications.
Package: 28-pin TSSOP, Pin Pitch: 0,65 mm
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.
SpAct is a trademark of Texas Instruments.
All other 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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated
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