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說明

The DIR9001 is a digital audio interface receiver that can receive a 28-kHz to 108-kHz sampling- 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.

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 be easily accomplished by connecting with a microcontroller, DSP, etc.

特性

• One-Chip Digital Audio Interface Receiver (DIR) Including Low-Jitter Clock-Recovery System
• 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
• Biphase Input Signal Sampling Frequency (f_S) Range: 28 kHz to 108 kHz
• Low-Jitter Recovered System Clock: 50 ps
• Jitter Tolerance Compliant With IEC60958-3
• Selectable Recovered System Clock: 128 f_S, 256 f_S, 384 f_S, 512 f_S
• Serial Audio Data Output Formats: 24-Bit I²S; MSB-First, 24-Bit Left-Justified; MSB-First 16-, 24-Bit Right-Justified
• User Data, Channel-Status Data Outputs Synchronized With Decoded Serial Audio Data
• No External Clock Required for Decode
• Includes Actual Sampling Frequency Calculator (Needs External 24.576-MHz Clock)
• Function Control: Parallel (Hardware)
• Functions Similar and Pin Assignments Equivalent to Those of DIR1703
• Single Power Supply: 3.3 V (2.7 V to 3.6 V)
• Wide Operating Temperature Range: -40°C to 85°C
• 5 V-Tolerant Digital Inputs
• Package: 28-pin TSSOP, Pin Pitch: 0,65 mm
• APPLICATIONS
  • AV/DVD Receiver, AV Amplifier
  • Car or Mobile Audio System