Texas Instruments DEM-DAI1802 User manual

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March 2002 DAV Digital Audio/Imaging Japan (DAL)
User’s Guide
SLEU017

IMPORTANT NOTICE
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Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated

EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
Thisevaluationkit being soldbyTI is intendedforuse for ENGINEERING DEVELOPMENT OR EVALUATION
PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided
may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective
considerations, including product safety measures typically found in the end product incorporating the goods.
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic
compatibility and therefore may not meet the technical requirements of the directive.
ShouldthisevaluationkitnotmeetthespecificationsindicatedintheEVMUser’sGuide,thekitmaybe returned
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,
IMPLIED,ORSTATUTORY,INCLUDINGANYWARRANTY OFMERCHANTABILITYORFITNESSFORANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
indemnifies TI from all claims arising from the handling or use of the goods. Please be aware that the products
receivedmaynotberegulatorycompliant oragency certified (FCC,UL, CE,etc.). Dueto theopen construction
oftheproduct,itistheuser’sresponsibilitytotakeanyandallappropriateprecautionswithregardtoelectrostatic
discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not
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TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM
User’sGuidepriortohandlingtheproduct.Thisnoticecontainsimportantsafetyinformationabouttemperatures
and voltages. For further safety concerns, please contact the TI application engineer.
Persons handling the product must have electronics training and observe good laboratory practice standards.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any
machine, process, or combination in which such TI products or services might be or are used.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated

EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of "15 V and the output
voltage range of "15 V.
Exceeding the specified input range may cause unexpected operation and/or irreversible
damage to the EVM. If there are questions concerning the input range, please contact a TI
field representative prior to connecting the input power.
Applyingloadsoutsideofthespecifiedoutputrangemayresultinunintendedoperationand/or
possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to
connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
Duringnormaloperation,somecircuitcomponentsmayhavecasetemperaturesgreaterthan
55°C.TheEVM isdesignedto operateproperlywith certaincomponentsabove 55°C aslong
astheinputandoutput rangesare maintained.Thesecomponentsincludebut arenot limited
tolinearregulators,switchingtransistors,passtransistors,andcurrentsenseresistors.These
typesof devicescanbeidentifiedusingtheEVM schematiclocated intheEVMUser’sGuide.
When placing measurement probes near these devices during operation, please be aware
that these devices may be very warm to the touch.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated

Related Documentation From Texas Instruments
v
Preface
Read This First
About This Manual
Thisuser’sguidedescribestheconstructionandcircuitryoftheDEM-DAI1802
demonstration board. It also contains instructions for connecting and setting
up the DEM-DAI1802 for operation.
How to Use This Manual
This document contains the following chapters:
Chapter 1 –Description
Chapter 2 –Schematics and Printed-Circuit Board
Related Documentation From Texas Instruments
PCM1802 Single-Ended Analog-Input 24-Bit, 96-kHz Stereo A/D Converter –
Literature No. SLES023
FCC Warning
This equipment is intended for use in a laboratory test environment only. It
generates, uses, and can radiate radio frequency energy and has not been
testedforcompliancewiththelimitsofcomputingdevicespursuanttosubpart
Jofpart15ofFCCrules,which aredesignedtoprovidereasonableprotection
against radio frequency interference. Operation of this equipment in other
environments may cause interference with radio communications, in which
case the user at his own expense will be required to take whatever measures
may be required to correct this interference.

vi

Contents
vii
Contents
1 Description 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Block Diagram 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 DEM-DAI1802 Basic Connection and Operation 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2.1 Configuration Controls 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Schematics and Printed-Circuit Board 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 DEM-DAI1802 Printed-Circuit Board 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 DEM-DAI1802 Schematics 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figures
1–1 DEM-DAI1802 Block Diagram 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–2 Digital Signal I/F to PCM1802 (JP052) 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 DEM-DAI1802 Silkscreen 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 DEM-DAI1802 Top View 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 DEM-DAI1802 Bottom View 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 DEM-DAI1802 Analog Section Schematic Diagram 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 DEM-DAI1802 A/D Converter Section Schematic Diagram 2-6. . . . . . . . . . . . . . . . . . . . . . . . .
2–6 DEM-DAI1802 Regulator and Connector Schematic Diagram 2-6. . . . . . . . . . . . . . . . . . . . . . .
2–7 DEM-DAI1802 Digital Section (Digital Audio Interface) Schematic Diagram 2-7. . . . . . . . . . .

Contents
viii
Tables
1–1 Analog Input Selection (JP101/102)—CN101/102 for 2 V RMS,
CN103/104 for 1 V RMS 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–2 PCM1802: HPF Bypass Control (SW051) 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–3 PCM1802: Oversampling Control (SW051)—64 fSor 128 fS1-3. . . . . . . . . . . . . . . . . . . . . . . .
1–4 PCM1802: Master/Slave and Oversampling Rate Selection
(JP002/004/052 and SW002/051) 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–5 System-Clock Dividing Ratio for MCK: 128 fS-CS8404 (JP001) 1-3. . . . . . . . . . . . . . . . . . . . .
1–6 Bit-Clock Dividing Ratio (JP002) 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–7 LR-Clock Dividing Ratio (JP004) 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–8 Data Format Selection (JP003 and SW051) 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–9 System Clock Source Selection (JP005)—Internal Clock: X001/24.576 MHz,
External Clock Input: CN001 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–10 Manual Reset (SW003) 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1–11 S/PDIF Transmitter Format: CS8404 Configuration (SW004) 1-5. . . . . . . . . . . . . . . . . . . . . . . .

1-1
Description
The DEM-DAI1802 is an evaluation board for the 96-kHz 24-bit PCM audio
A/Dconverter, PCM1802, with digitalaudiotransmitter,mode controls switch,
onboard oscillator, –6 dB amplifier, and LPF.
The DEM-DAI1802 operates from 5 V and ±15 V analog power supplies with
a 1-V RMS or 2-V RMS unbalanced analog signal input.
Topic Page
1.1 Block Diagram 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 DEM-DAI1802 Basic Connection and Operation 1-2. . . . . . . . . . . . . . . . . .
Chapter 1

Block Diagram
1-2
1.1 Block Diagram
Figure 1–1.DEM-DAI1802 Block Diagram
Format Control
ADC
PCM1802
+5V–15V
SW051
OPT
COAX
JUMPER
+5 V
External–I/F
(CN002)
R–ch
L–ch
L/R–ch
FSYNC
BCLK
SCLK
DOUT
LRCK
24.576 MHz
DIT
CS8404
and
Logic
DAI
(BUS)
Select
and
Divider
3.3 V
REG.
+VDD
GND GND GND +15V
Sel.
For 2VRMS Input
–6 dB Amp.
and
2nd-Order LPF
OPA2134 R–ch
L–ch
1.2 DEM-DAI1802 Basic Connection and Operation
-Connect the 5.0-V and ±15-V power supplies to the VCC, AVCC, –AVCC,
andGNDonconnectorsCN051–CN055.The±15-Vsuppliesarerequired
only for 2-V RMS input.
-Connect the S/PDIF output to CN003 (COAX) or U001 (OPT).
-Ensure the presence of a system clock, supplied from the onboard
oscillator or external input clock connector (CN001) through
switch/jumper to PCM1802.
-Set the data format using SW001, JP003, and SW051.
-Select the master or slave mode using SW002, SW051, JP002, JP004,
and JP052.
1.2.1 Configuration Controls
Table 1–1.Analog Input Selection (JP101/102)—CN101/102 for 2 V RMS,
CN103/104 for 1 V RMS
Input Jumper-Pin Position
1-V RMS Direct-IN
2-V RMS –6dB/LPF
Table 1–2.PCM1802: HPF Bypass Control (SW051)
HPF Bypass BYPAS (SW051)
Enable H
Disable L