Texas Instruments DIR9001, User Manual

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1 Description
User's Guide
SLAU225 – July 2007
DIR9001 Evaluation Board
Contents
1 Description
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1
1.1 Block Diagram
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2
1.2 Operation and Setting
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2
2 Schematic, Printed-Circuit Board and Bill of Materials
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5
2.1 DEM-DIR9001 Printed-Circuit Board
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5
2.2 DEM-DIR9001 Schematic Circuit Diagram
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7
2.3 Bill of Materials
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8
List of Figures
1 DEM-DIR9001 Block Diagram
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2
2 DEM-DIR9001 Silkscreen
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3 DEM-DIR9001 — Top View
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5
4 DEM-DIR9001 — Bottom View
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5 Schematic
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List of Tables
1 SW002: FMT0, FMT1 PCM Audio Data Format Selection
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3
2 SW002: PSCK0, PSCK1 System Clock Frequency Selection
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The DEM-DIR9001 is an evaluation board for the low jitter, Digital Audio Interface Receiver DIR9001. It is
operated by either a 3.3 V power supply, or a +5 V power supply.
The DEM-DIR9001 has both an Optical Toslink input and an Coaxial input for the SPDIF interface which
can achieve standard digital audio interface format IEC60958, AES/EBU, and JEIAT CPR-1205 (former
EIAJ CP-1201, 340).
The DEM-DIR9001 recovers standard system clock and PCM audio interface clock from incoming biphase
signals such as SPDIF, IEC60958, and AES/EBU. These signals are provided to the audio DAC/DSP,
buffer output, and direct output.
SLAU225 – July 2007 DIR9001 Evaluation Board 1
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