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1 Description

User's Guide

SLAU225 – July 2007

DIR9001 Evaluation Board

Contents

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

1.1 Block Diagram ....................................................................................................... 2

1.2 Operation and Setting .............................................................................................. 2

2 Schematic, Printed-Circuit Board and Bill of Materials ................................................................. 5

2.1 DEM-DIR9001 Printed-Circuit Board ............................................................................. 5

2.2 DEM-DIR9001 Schematic Circuit Diagram ...................................................................... 7

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

List of Figures

1 DEM-DIR9001 Block Diagram ............................................................................................. 2

2 DEM-DIR9001 Silkscreen .................................................................................................. 5

3 DEM-DIR9001 — Top View ............................................................................................... 5

4 DEM-DIR9001 — Bottom View ............................................................................................ 6

5 Schematic ..................................................................................................................... 7

List of Tables

1 SW002: FMT0, FMT1 PCM Audio Data Format Selection ............................................................. 3

2 SW002: PSCK0, PSCK1 System Clock Frequency Selection ......................................................... 3

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.

SLAU225 – July 2007 DIR9001 Evaluation Board 1

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Summary of content (10 pages)

PAGE 1
User's Guide SLAU225 – July 2007 DIR9001 Evaluation Board 1 2 Contents Description .................................................................................................................... 1.1 Block Diagram ....................................................................................................... 1.2 Operation and Setting .............................................................................................. Schematic, Printed-Circuit Board and Bill of Materials ..........
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www.ti.com Description 1.1 Block Diagram CN052 +3.3 V CN051 +5 V HDR501 3.3 V REG TORX141 OPT IN CN003 SW003 CN001 COAX IN DIR9001 CLKST TP BFRAME UOUT Status Indicator COUT x5 SW002 Function Control SW004 CLOCK Control CN004 SCKO BCKO LRCKO DOUT X001 24.576 MHz XTAL SW001 RESET CN005 SCKO BCKO LRCKO DOUT Figure 1. DEM-DIR9001 Block Diagram 1.2 1.2.
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www.ti.com Description 1.2.4 Function Control Table 1. SW002: FMT0, FMT1 PCM Audio Data Format Selection FMT[1:0] SETTING FMT1 DOUT SERIAL AUDIO DATA OUTPUT FORMAT FMT0 L L 16-bit MSB first, right justified L H 24-bit MSB first, right justified H L 24-bit MSB first, left justified H H 24-bit MSB first, I2S Table 2. SW002: PSCK0, PSCK1 System Clock Frequency Selection PSCK[1:0] SETTING PSCK1 1.2.
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www.ti.com Description 1.2.8 CN004, CN005 PCM Audio Interface Clock Output CN004 and CN005 are PCM audio interface clock outputs (System Clock, LRCK, BCK, and DATA). CN004 is a buffered output with a mounted logic buffer IC. CN005 is a direct output from DIR9001. Caution: Pins on the right side are GND. • SCKO : System Clock (128/256/384/512fs) • BCKO : PCM audio, BCK clock (64fs) • LRCKO : PCM audio, LRCK clock (fs) • DOUT : PCM audio, DATA clock CN004 CN005 SCKO BCKO LRCKO DOUT 1.2.
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www.ti.com Schematic, Printed-Circuit Board and Bill of Materials 2 Schematic, Printed-Circuit Board and Bill of Materials This section presents the DEM-DIR9001 printed-circuit boards, the DEM-DIR9001 schematic, and the bill of materials. 2.1 DEM-DIR9001 Printed-Circuit Board Figure 2. DEM-DIR9001 Silkscreen SLAU225 – July 2007 Submit Documentation Feedback Figure 3.
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www.ti.com Schematic, Printed-Circuit Board and Bill of Materials Figure 4.
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GND CN001 RCA PJ GND OUT 1 U001 TORX141 GND 2 Vcc C005 10uF/16V GND R001 75 R003 2.2k R002 47k C003 0.1uF C001 C002 0.1uF 10uF/16V 3 R005 470 GND 8 7 U002 74LVU04 9 6 11 4 10 12 5 13 3 Vcc 14 2 1 D001 1SS133 C004 0.1uF SW001 SKHH_SW 2 1 3 R004 47k 6 PSCK1 5 PSCK0 4 C008 18pF C009 18pF X001 24.576MHz GND (R007) CN002 FFC-2BMEP1 R006 470 JP001 Measurement Point C007 C006 10uF/16V 0.
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www.ti.com Schematic, Printed-Circuit Board and Bill of Materials 2.3 Bill of Materials Reference Type 8 NO. Description MFG. Model Value C 1,3,4 Chip Ceramic Capacitor Murata GRM188B11E104KA01 0.1 μF, K, 25 V C 2,6,11 OS Capacitor SANYO 16SS10M 10 μF, M, 16 V C 5 AL EL Capacitor ELNA RC3-16V100M 10 μF, M, 16 V C 7 Chip Ceramic Capacitor Murata GRM188B11E104KA01 0.
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EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.