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DIR9001
SLES198A –DECEMBER 2006–REVISED MAY 2015
DIR9001 96-kHz, 24-Bit Digital Audio Interface Receiver
1 Features
3 Description
The DIR9001 is a digital audio interface receiver that
can receive 28-kHz to 108-kHz sampling-
1
•
One-Chip Digital Audio Interface Receiver (DIR)
Including Low-Jitter Clock-Recovery System
a
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.
•
Compliant With Digital Audio Interface Standards:
IEC60958 (former IEC958), JEITA CPR-1205
(former EIAJ CP-1201, CP-340), AES3, EBU
tech3250
•
•
Clock Recovery and Data Decode From Biphase
Input Signal, Generally Called S/PDIF, EIAJ CP-
1201, IEC60958, AES/EBU
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 application
system that does not have a microcontroller. Also, as
dedicated pins are provided for the channel-status bit
and user-data bit, processing of their information can
Biphase Input Signal Sampling Frequency (fS)
Range: 28 kHz to 108 kHz
•
•
•
Low-Jitter Recovered System Clock: 50 ps
Jitter Tolerance Compliant With IEC60958-3
be easily accomplished by connecting with
microcontroller, DSP, or others.
a
Selectable Recovered System Clock: 128 fS,
256 fS, 384 fS, 512 fS
•
•
Serial Audio Data Output Formats: 24-Bit I2S;
MSB-First, 24-Bit Left-Justified; MSB-First 16-, 24-
Bit Right-Justified
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.
User Data, Channel-Status Data Outputs
Synchronized With Decoded Serial Audio Data
The operating temperature range of the DIR9001 is
specified as –40°C to 85°C, which makes it suitable
for automotive applications.
•
•
No External Clock Required for Decode
Includes Actual Sampling Frequency Calculator
(Needs External 24.576-MHz Clock)
•
•
Function Control: Parallel (Hardware)
Device Information
PART NUMBER
PACKAGE
BODY SIZE (NOM)
Functions Similar and Pin Assignments Equivalent
to Those of DIR1703
DIR9001
TSSOP (28)
4.40 mm × 9.70 mm
•
•
Single Power Supply: 3.3 V (2.7 V to 3.6 V)
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Wide Operating Temperature Range: –40°C to
85°C
•
•
5 V-Tolerant Digital Inputs
Block Diagram
Package: 28-pin TSSOP, Pin Pitch: 0,65 mm
FILT
XTI XTO
2 Applications
OSC
Sampling
Frequency
Calculator
FSOUT0
FSOUT1
•
•
•
•
•
•
•
•
AV/DVD Receiver, AV Amplifier
Car or Mobile Audio System
Digital Television
Clock and Data Recovery
SCKO
Charge
Pump
Preamble
Detector
RXIN
VCO
Divider
PLL
BCKO
Divider
Musical Instruments
Clock
Decoder
LRCKO
Recording Systems
Biphase
Data Decoder
ERROR
CLKST
ERROR
Detector
High-End Audio/Sound Card for PC
Replacement of DIR1703
Decoder
CKSEL
DOUT
Serial
Audio Data
Formatter
FMT0
FMT1
Other Applications Requiring S/PDIF Receiver
Audio Data
MUTE Control
Function
Control
PSCK0
PSCK1
RSV
DGND
UOUT
Channel Status
and
COUT
BFRAME
AUDIO
EMPH
User Data
Output
RST
Power Supply
RESET
VDD
DGND
VCC
AGND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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