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User's Guide

SLAU225–July 2007

DIR9001 Evaluation Board

Contents

1

2

1.1 1.2

Block Diagram....................................................................................................... Operation and Setting ..............................................................................................

Schematic, Printed-Circuit Board and Bill of Materials .................................................................

2.1 2.2

DEM-DIR9001 Printed-Circuit Board............................................................................. DEM-DIR9001 Schematic Circuit Diagram ......................................................................

Description.................................................................................................................... 1

2 2 5 5 7

2.3

Bill of Materials ...................................................................................................... 8

List of Figures

1 2 3 4 5

DEM-DIR9001 Block Diagram ............................................................................................. 2 DEM-DIR9001 Silkscreen .................................................................................................. 5 DEM-DIR9001 — Top View ............................................................................................... 5 DEM-DIR9001 — Bottom View ............................................................................................ 6 Schematic..................................................................................................................... 7

List of Tables

1 2

SW002: FMT0, FMT1 PCM Audio Data Format Selection ............................................................. 3 SW002: PSCK0, PSCK1 System Clock Frequency Selection......................................................... 3

1

Description

The DEM-DIR9001 is an evaluation board for the low jitter, Digital Audio Interface Receiver DIR9001. It is operated by either a single +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.

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DIR9001 Evaluation Board

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