BurrBrown Products

from Texas Instruments

FEATURES

APPLICATIONS

DESCRIPTION

DIR9001

SLES198 – DECEMBER 2006

96-kHz, 24-Bit Digital Audio Interface Receiver

• AV/DVD Receiver, AV Amplifier

• One-Chip Digital Audio Interface Receiver

(DIR) Including Low-Jitter Clock-Recovery

• Car or Mobile Audio System

System

• Digital Television

• Compliant With Digital Audio Interface

• Musical Instruments

Standards: IEC60958 (former IEC958), JEITA

• Recording Systems

CPR-1205 (former EIAJ CP-1201, CP-340),

• High-End Audio/Sound Card for PC

AES3, EBU tech3250

• Replacement of DIR1703

• Clock Recovery and Data Decode From

• Other Applications Requiring S/PDIF Receiver

Biphase Input Signal, Generally Called S/PDIF,

EIAJ CP-1201, IEC60958, AES/EBU

• Biphase Input Signal Sampling Frequency (f

The DIR9001 is a digital audio interface receiver that

Range: 28 kHz to 108 kHz

can

receive

a

28-kHz

to

108-kHz

sampling-

• Low-Jitter Recovered System Clock: 50 ps

frequency, 24-bit-data-word, biphase-encoded signal.

The DIR9001 complies with IEC60958-3, JEITA

• Jitter Tolerance Compliant With IEC60958-3

CPR-1205 (Revised version of EIAJ CP-1201),

• Selectable Recovered System Clock: 128 f

AES3, EBUtech3250, and it can be used in various

applications that require a digital audio interface.

The DIR9001 supports many output system clock

MSB-First, 24-Bit Left-Justified; MSB-First 16-,

and output data formats and can be used flexibly in

24-Bit Right-Justified

many application systems. As the all functions which

• User Data, Channel-Status Data Outputs

the DIR9001 provides can be controlled directly

Synchronized With Decoded Serial Audio Data

through control pins, it can be used easily in an

application

system

that

does

not

have

a

• No External Clock Required for Decode

microcontroller. Also, as dedicated pins are provided

• Includes Actual Sampling Frequency

for

the

channel-status

bit

and

user-data

bit,

Calculator (Needs External 24.576-MHz Clock)

processing

of

their

information

can

be

easily

• Function Control: Parallel (Hardware)

accomplished by connecting with a microcontroller,

DSP, etc.

• 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

• Single Power Supply: 3.3 V (2.7 V to 3.6 V)

internal actual-sampling-frequency calculator is not

• Wide Operating Temperature Range: –40°C to

used. Therefore, it is possible to reduce the cost of a

85

°C

system.

• 5 V-Tolerant Digital Inputs

The operating temperature range of the DIR9001 is

• Package: 28-pin TSSOP, Pin Pitch: 0,65 mm

specified as –40

°C to 85°C, which makes it suitable

for automotive applications.

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.

Copyright © 2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.