DAREF105
TAS3002/TAS3004 Reference Design Board
User’s Guide
June 2001
Digital Audio Products
SLEU004
IMPORTANT NOTICE
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those mandated by government requirements.
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Copyright  2001, Texas Instruments Incorporated
EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation kit being sold by TI is intended for use 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.
Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide,
the kit may be 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, OR
STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
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the user’s responsibility to take any and all appropriate precautions with regard to
electrostatic discharge.
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INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
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software performance, or infringement of patents or services described herein.
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Texas Instruments
Post Office Box 655303
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Copyright  2001, Texas Instruments Incorporated
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the specified input and output ranges described in
the EVM User’s Guide.
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.
Applying loads outside of the specified output range may result in unintended operation and/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.
During normal operation, some circuit components may have case temperatures greater than
60°C. The EVM is designed to operate properly with certain components above 60°C as long
as the input and output ranges are maintained. These components include but are not limited
to linear regulators, switching transistors, pass transistors, and current sense resistors. These
types of devices can be identified using the EVM schematic located in the EVM User’s Guide.
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  2001, Texas Instruments Incorporated
Related Documentation From Texas Instruments
Preface
Read This First
About This Manual
This user’s guide describes the operation of the TAS3002/TAS3004 reference
design board, hereinafter referred to as the TAS3004 reference board. This
document contains descriptions for board operations of a mono microphone
or stereo application. Supplementally included on CD in the TAS3004
reference board kit is the software GUI documentation.
This design is an example reference design that can be customized for specific
applications.
NOTE: In the default configuration, the TAS3004 reference board comes
assembled with the TAS3004 chip. This board can also be used as is to
evaluate the TAS3002, because the difference between the chips is minimal.
How to Use This Manual
This document contains the following chapters:
- Chapter 1—Overview
- Chapter 2—System Components
- Chapter 3—Board Operation
- Chapter 4—TAS3004 Reference Design Board—Block Diagram
- Chapter 5—Utilization Overview
Related Documentation From Texas Instruments
- TAS1020A EVM User’s Guide, Literature No. SLEU002
- TAS3002 Digital Audio Processor With Codec data manual, Literature
No. SLAS307B
- TAS3004 Digital Audio Processor With Codec data manual, Literature
No. SLAS325
v
Trademarks
- TLV2362 High-Performance Low-Voltage Operational Amplifiers data
sheet, Literature No. SLOS195B
- TPA0112 2-W Stereo Audio Power Amplifier With Four Selectable Gain
Settings data sheet, Literature No. SLOS204B
- TPS76433
Low-Power Low-Noise 150-mA
Regulator, data sheet Literature No. SLVS180B
Low-Dropout
Linear
- Software GUI release No. 2.0 or higher
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
tested for compliance with the limits of computing devices pursuant to subpart
J of part 15 of FCC rules, which are designed to provide reasonable protection
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.
Trademarks
Radio Shack and Optimus are trademarks of Tandy Corporation.
Other trademarks are the property of their respective owners.
vi
Contents
Contents
1
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3
Environmental Working Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4
Description of Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5
Description of Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
1-2
1-2
1-3
1-3
1-3
1-3
2
Systems Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1
Power Supplies and Decoupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2
Microphone Amp and Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3
Line Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4
ADC/DAC Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5
TAS3004—Digital Equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6
Clock Generation (Master Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7
Digital Audio Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.8
EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
2-2
2-2
2-2
2-3
2-3
2-3
2-3
2-4
3
Board Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1
Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2
Switch Functions for Digital Equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3
Software GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4.1 PC Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5
EQ GUI Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1
3-2
3-2
3-3
3-3
3-3
3-4
4
TAS3004 Reference Board—Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
5
Utilization Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
A
Supplemental Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
vii
Contents
Figures
3–1
3–2
4–1
Part I EQ GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Part II EQ GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
TAS3004 Reference Board Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Tables
3–1
5–1
viii
Switch Functions for Speaker Equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
EEPROM Programming Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Chapter 1
Overview
The TAS3004 reference board demonstrates the operation of the digital
equalization and the dramatic improvements that 32-bit digital audio signal
processing can make on the quality of sound.
Topic
Page
1.1
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.3
Environment Working Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.4
Description of Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.5
Description of Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1.6
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Overview
1-1
Modes of Operation
1.1 Modes of Operation
An analog stereo input signal is provided through a 3,5-mm. stereo jack. The
left and right channels of the signal are filtered and converted via the analog-todigital converter in the TAS3004 into left and right digital signals. The digital
signals are processed by the TAS3004 and then converted to analog via the
digital-to-analog converter of the TAS3004. The analog left and right signals
are amplified at the output stage and routed to the speaker and headphone
output connectors. This provides drive for unamplified speakers via RCA jacks
and stereo headphones via a 3,5-mm jack.
The configuration of the TAS3004 is controlled via the software GUI (PC mode)
or an onboard EEPROM (stand-alone mode).
- PC Mode. The TAS3004 reference board is connected directly to a PC
parallel port via a paddle board (DAREF106R1 board, included in kit). EQ
GUI software is installed on the PC to exercise full control of the TAS3004.
Menus allow control of volume, tone, dynamic range compression, EQ
selection, mixer settings, format, I2C control, loudness, analog output
selection, and EEPROM snapshot (for stand-alone mode).
- Stand-Alone Mode. By burning a TAS3004 configuration snapshot into
an EEPROM, volume, bass, treble and EQ selection control is maintained
via momentary contact switches. See Section 5, EEPROM Utilization
Overview, for a detailed description of how to burn the EEPROM data.
In stand-alone mode, the embedded microcontroller in the TAS3004 is
accessed via six GPIO pins to provide conttol over volume, bass, treble, and
EQ selection. The switches and the EQ settings they provide are described in
Section 3.2.
The TAS3004 reference board can be configured as an IIS master or slave.
It is shipped as an IIS master. This system receives and transmits digital data
at a 48-kHz sampling frequency when it is used in the master mode.
1.2 Features
The TAS3004 reference board has the following features:
- TAS3004 stereo audio digital equalizer
- Operation via either a pre-programmed EEPROM or via the PC through
-
1-2
a paddle board (DAREF106) and GUI software program
Six switches used to control the volume, bass, treble and equalization
Mute control
LED to indicate the analog input channel selected
A 12.288-MHz master clock frequency
Sampling rate of 48 kHz used for both 1-V rms stereo line inputs and analog stereo output signals
A mono microphone input
Stereo, 2-W/channel, differential-output, audio-power amplifier
Operates from a 9-Vdc power supply
Onboard 3.3-V and 5-V voltage regulators
Digital input/output port compatible with the TAS1020A EVM
Environmental Working Conditions
1.3 Environmental Working Conditions
The circuit is designed to operate in a laboratory-type environment.
1.4 Description of Inputs
The input to the TAS3004 reference board is a 3,5-mm stereo jack for both the
microphone input and the line input.
The line input signal required is a stereo analog signal. The analog input range
is ground to a maximum of 1 V rms.
The microphone input signal is designed to amplify and bias a three-wire electret microphone.
The board initializes with analog input A (the line input) selected. To switch to
the microphone input, the software GUI must be used.
A 2-pin header is provided to facilitate the use of the second B input when in
the mono mode.
1.5 Description of Outputs
The headphone output is a 3,5-mm stereo jack. The headphone output is a
stereo analog audio signal of 150 mW rms. The output is capable of driving
32-Ω headphones.
The power amplifier output is via two RCA connectors. The power amplifier
output signal is capable of driving 4- to 8-Ω speakers at up to 2 W/channel of
power.
1.6 Power Supply
The power supply for the speaker equalization board is 9 Vdc. The average
current that the board draws is about 1.0 A when driving speakers and less
than 150 mA when no speakers are connected.
Overview
1-3
1-4
Chapter 2
Systems Components
This chapter details individual circuits and functions within the TAS3004
reference board.
Topic
Page
2.1
Power Supplies and Decoupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2
Microphone Amp and Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.3
Line Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.4
ADC/DAC Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.5
TAS3004—Digital Equalization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.6
Clock Generation (Master Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.7
Digital Audio Slave Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2.8
EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Systems Components
2-1
Power Supplies and Decoupling
2.1 Power Supplies and Decoupling
The system uses a TL317 linear regulator to convert the 9-Vdc input to 5 Vdc
to power the operational and power amplifiers, and a TPS76433 LDO to
convert the 5-V power to 3.3 V to power the TAS3004.
All power input pins are decoupled with 0.1 µF capacitors.
2.2 Microphone Amp and Bias
The microphone input to the TAS3004 reference board is a low-level analog
signal. A preamplifier made of a TLV2362, with a gain of approximately 30 dB,
has been added to increase the amplitude to a level that can be accurately
processed by the TAS3004. With a gain of 30 dB, a 28-mV signal produces a
full-scale ADC output.
Because most common microphones are electret, and must have a bias, the
other amplifier in the TLV2362 is used as a voltage follower to generate this
bias. The TLV2362 provides a bias voltage of 2.5 V.
The microphone input is a 3,5-mm stereo connector, J3, on the TAS3004
reference board. The tip connection is for the microphone signal and the ring
connection is the bias.
When the TAS3004 reference board is initialized, the line input (analog input
A) is the active input for this board.
This circuit also functions with many dynamic microphones.
2.3 Line Input
A stereo line input is provided through another 3,5-mm stereo connector (J2).
The tip connection is the left channel and the ring connection is the right
channel.
Because the TAS3004 contains internal buffer amplifiers, only input capacitors
are necessary for connection to the codec.
The full-scale input signal to the TAS3004 is 0.7 V rms; therefore, an input
attenuator has been added to reduce the input signal. PC sound cards usually
produce 1 V rms and some consumer audio equipment can produce peaks up
to 2 V rms. The input attenuator is designed to produce full-scale output when
a 1-V rms signal is applied to the input.
The line input can be selected by using the analog control panel with the
software GUI.
2-2
ADC/DAC Functions
2.4 ADC/DAC Functions
The TAS3004 reference board takes an analog stereo audio input (or a mono
microphone signal) and converts the signal to digital so that digital equalization
can be performed. The digital signal is then converted back into analog and
sent to an external device. The analog-to-digital (A/D) and digital-to-analog
(D/A) functions are performed by the TAS3004. The TAS3004 contains a
stereo A/D and D/A 24-bit delta-sigma converter. The TAS3004 is capable of
operating at a 48-kHz sampling frequency. The digital serial input option is set
to programmable with the software GUI.
When initialized, the device defaults to the 20-bit I2S mode.
2.5 TAS3004—Digital Equalization
The TAS3004 stereo audio digital equalizer contains a 32-bit digital audio
signal processor. It provides seven bands of parametric equalization, bass,
treble and volume control, dynamic range compression, and dynamic
loudness contour.
2.6 Clock Generation (Master Mode)
The master clock for the TAS3004 reference board is provided by an external
crystal connected to the TAS3004 internal oscillator. The oscillator runs at
12.288 MHz.
The other digital audio timing signals are provided by circuitry in the TAS3004.
2.7 Digital Audio Slave Mode
The TAS3004 reference board is shipped as a digital audio master. Its default
mode of 20-bit I2S is used. A 12.288-MHz crystal is installed on the board.
The digital output is connected to JB1, a TAS1020A EVM-compatible, 40-pin
IDC connector. This output can be used to drive other devices if the interconnecting cable is kept short, about 6 inches.
For use with the TAS1020A EVM or other digital mastering devices, the board
must be reconfigured:
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
Remove the crystal (Y1) from its socket.
Remove R21
Remove CY2
Add JP1 (supplied)
Add JP2 (supplied)
Unsolder and lift pin 7 of the TAS3004 (U1). This maps the TAS3004 to I2C
address 6Ah.
Install the 40-pin IDC connector (supplied) on the bottom of the board, if
operation with the TAS1020A is desired.
When using with a TAS1020A EVM, place the supplied piece of weather
stripping over JB1 to prevent short circuits.
Plug the TAS3004 reference board into JB2 of the TAS1020A EVM.
Apply +9-Vdc power to the TAS3004 board.
Follow instructions for the TAS1020A EVM in the TAS1020A EVM user’s
guide. (TAS1020A firmware will have to be written to interface the two
boards.)
Systems Components
2-3
EEPROM
2.8 EEPROM
The TAS3004 is capable of being configured by data loaded from an external
EEPROM. This EEPROM is not shipped with the EVM because it contains
specific speaker equalization and the target speakers are unknown.
TI has several preprogrammed EEPROMs that contrain equalization code for
speakers by various manufacturers.
2-4
Chapter 3
Board Operation
This chapter details the operation of the TAS3004 reference board.
Topic
Page
3.1
Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2
Switch Functions for Digital Equalization . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.3
Software GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.4
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.5
EQ GUI Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Board Operation
3-1
Power-Up Sequence
3.1 Power-Up Sequence
The power-up sequence for the speaker equalization board is very simple.
1) Insert either the EEPROM or the PS2 PC interface cable into the socket
provided on the board. Verify the position of pin 1.
2) Connect +9 Vdc to the positive terminal of the power supply cable and
connect a ground to the negative terminal.
3) Insert the 2,5-mm power connector into PJ1.
4) Turn on the power supply and verify the board draws a current of less than
150 mA.
5) Turn off the power.
6) Connect a 1-V rms analog signal to the 3,5-mm stereo input jack. This
input can be provided either through a signal generator, a CD player, or
other sound generation equipment. (Some CD players provide up to
2 V rms and may cause distortion.)
7) Connect the output to unamplified stereo speakers via the RCA output
jacks. This output can be measured by a signal analyzer or played through
speakers. Alternatively, connect stereo headphones to the 3,5-mm stereo
headphone connector. Connecting the headphones also bypasses any
digital equalization.
8) Turn on the power to the speaker equalization board and re-verify that the
current draw is less than 150 mA after the board is initialized by the microcontroller or by the software GUI.
9) Turn on the power to the input and output devices.
10) Depending on the selected mode of operation—either through the
EEPROM or through the software GUI program and the PS2 cable—
introduce equalization to the input analog signal. The instructions for the
EEPROM mode of operation are described in Section 3.2 and the
instructions for the software start at Section 3.3.
3.2 Switch Functions for Digital Equalization
When the speaker equalization board is used with an EEPROM, the six
onboard switches allow the user to adjust the digital equalization, volume,
bass and treble of the audio input signal.
The EEPROM is preprogrammed with five different equalization effects—
original or no EQ, flat EQ, jazz EQ, rock EQ and voice EQ. Because these
equalizations were created for a specific type of speaker, they should be
reprogrammed for your speakers or the user can obtain a pair of Optimus
5A8 speakers from Radio Shack. The EEPROM is also preprogrammed to
increase or decrease the volume, bass and treble in 1 dB increments/
decrements for each push of the button. The switches on the board can be
switched from EQ mode to volume/bass/treble mode by depressing SW3 and
SW4 simultaneously. To return to the EQ mode, simultaneously depress SW1
and SW6.
3-2
Software GUI
Table 3–1 describes the operation of the switches.
Table 3–1. Switch Functions for Speaker Equalization
SW6
Volume Up
SW5
SW4
SW3
SW2
SW1
X
Volume Dn
X
Bass Up
X
Bass Dn
X
Treble Up
X
Treble Dn
X
Shift 1
X
Mute
X
EQ1
X
X
EQ2
X
EQ3
X
EQ4
X
EQ5
X
Shift 2
X
X
3.3 Software GUI
When the EEPROM used to configure the TAS3004 reference board is
replaced by the PS2 cable, the configuration of the TAS3004 equalization can
be done through the software GUI program from a PC. In the software-GUI
operation mode, the six on-board switches are disabled and the seven bands
of digital equalization, volume, bass and treble are controlled via the software.
Refer to the Software GUI User’s Manual for instructions on how to use this
feature.
3.4 Software Installation
3.4.1
PC Setup
Set the parallel port on the PC into EPP mode. If EPP mode is not available,
bidirectional or PS-2 mode often works. The parallel port configuration can be
changed in the system setup during PC boot-up.
- Installation from EQ Software Tools CD
1) Insert the EQ Software Tools CD.
2) Run Setup.exe from the root directory.
3) Follow the installation directions.
Board Operation
3-3
EQ GUI Start-Up
- Installation from DAREF105 EVM CD
1) Insert the DAREF105 EVM CD.
2) Run Setup.exe from the Software directory of the EVM CD.
3)
Follow the installation directions.
- Connection of PC to EVM for EQ GUI Operation
1) Connect the analog input from the CD, DVD player, or any alternative
analog source to the TAS3004 reference board.
2) Connect a parallel cable between the parallel port on the computer
and the DB25 connector on the TAS3004 reference board.
Note:
The parallel port cable can be replaced with the TI paddle board. In this document
the term parallel cable means either the TI paddle board or the parallel-port cable.
3.5 EQ GUI Start-Up
1) Execute the software labeled EQ GUI from the directory where the software was loaded.
2) Load the TAS3004 EVM Demo.dat configuration file. The configuration
files are all files with the file extension *.dat. The GUI prompts the user to
enter a configuration file. The default file is EQ_GUI.dat. However, any of
the other .dat files can be selected.
3) The GUI starts running if there are values loaded in the ALLPASS.EQ file.
If the values loaded in the ALLPASS.EQ file are not defined, then Mute is
the default for the volume and mixer.
4) Click the EQ Select button in the EQ GUI window [Figure 3–1 (a)]. Select
the desired EQ file from one of the four windows in the EQ SELECT panel
[Figure 3–1 (b)].
5) Click the Mixer button in the EQ GUI window [Figure 3–1 (a)]. In the mixer
panel [Figure 3–1 (c)], adjust the mixer settings to the desired level.
6) Click the Volume button in the EQ GUI window [Figure 3–1 (a)]. In the
VOLUME panel [Figure 3–2 (g)], adjust the volume to the desired level.
7) Click the Tone button in the EQ GUI window [Figure 3–1 (a)]. In the TONE
panel [Figure 3–2 (h)], adjust the bass and treble to the desired level.
8) The graphic equalizer can also be selected to adjust specific frequencies.
Click the Graphic EQ button in the EQ GUI window [Figure 3–1 (a)]. Select
the appropriate *.gr file from the Graphic Equalizer panel [Figure 3–2 (e)].
(Note: the Graphic Equalizer panel and the EQ SELECT panel do not
operate simultaneously. The settings in the active window override the
settings in the other window.)
9) Click the Analog D/M button in the EQ GUI window [(Figure 3–1 (a)]. Pick
the proper input select in the Analog Control Register window
[Figure 3–2 (f)].
3-4
EQ GUI Start-Up
Figure 3–1. Part I EQ GUI
a
b
c
Board Operation
3-5
EQ GUI Start-Up
Figure 3–2. Part II EQ GUI
d
e
f
3-6
g
h
Chapter 4
TAS3004 Reference Board—Block Diagram
A functional block diagram of the TAS3004 reference board is shown in
Figure 4–1.
TAS3004 Reference Board—Block Diagram
4-1
Figure 4–1. TAS3004 Reference Board Block Diagram
Crystal
Oscillator
(Master Mode)
(MCLK)
J2 Stereo Line Input
J3
Microphone
Preamplifier
LINA
RINA
PA1
LINB
Output
Power
Amplifier
TAS3004
J7
Monaural Input
TAS1020A EVM
(TAS3004 Slave Mode)
AOUTR
RINB
LRCLK
SCLK
MCLK
JB1
SDIN2
RESET
Paddle
Board
SCL
J6
SDA
IO0–IO5
EEPROM
4-2
J4
AOUTL
GPI Switches
J1
J5
Chapter 5
Utilization Overview
The TAS3004 reference board is shipped in PC mode. It does not come with
the EEPROM installed, because the EEPROM contains equalization
coefficients specific to a set of speakers at the Texas Instruments digital audio
lab. If the stand-alone mode of operation is desired, a 24LC04 or a 24LC16
EEPROM should be programmed and installed in the 8-pin DIP socket on the
TAS3004 reference board.
The 24LC04 EEPROM is used for a system containing two speakers (2.0) and
up to five equalizations (normal, jazz, rock, etc.) with the same equalization for
both the right and left channels.
The 24LC16 EEPROM is used for a system containing two speakers (2.0) and
up to five equalizations (normal, jazz, rock, etc.) with different equalization for
both the right and left channels.
Table 5–1. EEPROM Programming Examples
Case
EEPROM
Bytes
Mode
1
24LC04
4K (512×8)
2.0, Left EQ = Right EQ
2
24LC16
16K (2048×8)
2.0, Left EQ ≠ Right EQ
The EEPROM function in the EQ GUI program makes both hex and binary
copies of the settings of the GUI. The binary file (.bin) is used for programming
the EEPROM, and the hex file is provided as a troubleshooting tool. The hex
file contains identifiers that show the locations of the stored functions such as
bass, treble, volume and equalization. When equalization has been
determined using the other EQ GUI tools (see Section 3.5), click the EPROM
button in the EQ GUI window [Figure 3–1 (a)]. Then click the Create Files
button in the EPROM panel [Figure 3–2 (d)] to make the files.
After programming the EEPROM, the EEPROM is installed in the EPROM
socket on the TAS3004 reference board. At power on, the TAS3004 reads this
EEPROM and is initialized with the data. The GUI program can still be used
while the EEPROM is installed.
Utilization Overview
5-1
Note: EEPROM Selection
EEPROM part numbers vary with manufacturers. Ensure the EEPROM selected can operate at 3.3 V and has a 2-wire serial interface. Here are some
examples of EEPROMs that work on the TAS3004 reference board:
a. Atmel, AT24C04, AT24C16
b. MicroChip, 24LC04B, 24LC16B
5-2
Appendix A
Supplemental Information
This appendix contains the following items for the DAREF105 reference
board:
- Gerber files
J
Top silkscreen with hidden text
J
Top silkscreen without hidden text
J
Copper layer 1
J
Copper layer 2
J
Fab notes
- Bill of materials
- Schematic
Supplemental Information
A-1
UpDated: 15-Mar-01
DAREF105R2
TAS3002/TAS3004 Reference Design Board Rev. 1
Page 1 of 2
TEXAS INSTRUMENTS INTEGRATED CIRCUITS
TYPE / SIZE
Item
Number
DESCRIPTION
REFERENCE DESIGNATORS
MFG
MFG PART NUMBER
QTY
1
2
3
4
TAS3002CPFBTQFP48-PFB
TLV2362PWR TSSOP8-PW
TPA0112PWP HTSSOP24-PWP
TPS76433DBV SOT23-DBV5
TAS3004CPFB
TLV2362PWR
TPA0112PWP
TPS76433DBV
U1
OA1
PA1
VR2
1
1
1
1
TI
TI
TI
TI
VENDOR PART
NUMBER
TAS3002CPFB
TLV2362IPWR
TPA0112PWP
TPS76433DBV
VENDOR
TI
TI
TI
TI
CAPACITORS
TYPE / SIZE
Item
Number
DESCRIPTION
REFERENCE DESIGNATORS
MFG
MFG PART NUMBER
VENDOR PART
NUMBER
VENDOR
ECJ-1VC1H150J
ECU-V1H101JCV
PCC150ACVTR-ND
PCC101ACVTR-ND
DIGIKEY
DIGIKEY
QTY
5
6
C0603
RC0603
15pfd
100pfd
7
8
9
10
CAP CERAMIC 470PF 50V 0603 SMD
CAP 1200PF 50V CERAMIC 0603 SMD
CAP 1500PF 50V CERAMIC 0603 SMD
CAP 68000PF 16V CERM X7R 0603
11
12
13
14
CAP .1UF 16V CERAMIC X7R 0603
CAP 10000PF 50V CERM CHIP 0805
CAP .1UF 50V CERAMIC X7R 0805
CAP .15UF 25V CERAMIC X7R 0805
C0805
RC0805
16
17
C1206
RC1206
CAP .47UF 16V CERAMIC X7R 0805
CAP 1UF 16V CERAMIC Y5V 0805
CAP .33UF 25V CERAMIC X7R 1206
18
19
20
21
VSB10/16
VSB33/10
KGA15-16
FC100-25
CAP_VSB
CAP_VSB
C160060-020
C250100-030
CAP 10UF 16V VS ELECT SMD
CAP 33UF 10V ELECT VS SMD
KG RAD ALUM ELEC CAP 15MFD 16V
CAP 100UF 25V ELECT FC RADIAL
15
CY1, CY2
C20, C58, C59
C3, C4, C5, C17, C28, C51, C60,
C61, C62, C63, C64
C22, C23
C33
C34
2 Panasonic
3 Panasonic
C9, C26, C29, C31, C32, C39, C45,
C47, C49, C50, C53, C55, C57
C40
C42, C43
C15
C1, C2, C8, C11, C12, C13, C14,
C16, C18, C19, C27
C30, C54, C56
C37
C25, C35, C36, C38, C41, C44,
C46, C48, C52
C10, C21
C24
C6, C7
11
2
1
1
Panasonic
Panasonic
Panasonic
Panasonic
ECJ-1VC1H221J
ECU-V1H122KBV
ECU-V1H152KBV
PCC1760TR-ND
PCC471BVTR-ND
PCC122BVTR-ND
PCC152BVTR-ND
PCC1760TR-ND
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
13
1
2
1
Panasonic
Panasonic
Panasonic
Panasonic
ECJ-1VB1C104K
ECJ-2VB1H103K
ECJ-2YB1H104K
ECJ-2YB1E154K
PCC1762TR-ND
PCC103BNTR-ND
PCC1840TR-ND
PCC1830TR-ND
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
11 Panasonic
3 Panasonic
1 Panasonic
ECJ-2YB1C474K
ECJ-2VF1C105Z
ECJ-3VB1E334K
PCC1818TR-ND
PCC1849TR-ND
PCC1889TR-ND
DIGIKEY
DIGIKEY
DIGIKEY
ECE-V1CA100SR
ECE-V1AA330WR
ECE-A1CKG150
EEU-FC1E101S
PCE3062TR-ND
PCE3175TR-ND
P911-ND
P10269-ND
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
MFG PART NUMBER
VENDOR PART
NUMBER
VENDOR
ERJ-3GSY0R00V
ERJ-3EKF10R0V
ERJ-3EKF27R4V
P0.0GCT-ND
P10.0HTR-ND
P27.4HTR-ND
DIGIKEY
DIGIKEY
DIGIKEY
9
2
1
2
Panasonic
Panasonic
Panasonic
Panasonic
RESISTORS
Item
Number
22 R0603
23
24
TYPE / SIZE
DESCRIPTION
REFERENCE DESIGNATORS
MFG
QTY
RC0603
RES ZERO OHM 1/16W 5% 0603 SMD
RES 10.0 OHM 1/16W 1% 0603 SMD
RES 27.4 OHM 1/16W 1% 0603 SMD
25
26
27
28
29
30
31
32
RES 49.9 OHM 1/16W 1% 0603 SMD
RES 332 OHM 1/16W 1% 0603 SMD
RES 1.00K OHM 1/16W 1% 0603 SMD
RES 1.50K OHM 1/16W 1% 0603 SMD
RES 2.00K OHM 1/16W 1% 0603 SMD
RES 2.49K OHM 1/16W 1% 0603 SMD
RES 3.32K OHM 1/16W 1% 0603 SMD
RES 4.22K OHM 1/16W 1% 0603 SMD
33
34
35
36
37
RES 4.99K OHM 1/16W 1% 0603 SMD
RES 10.0K OHM 1/16W 1% 0603 SMD
RES 15.0K OHM 1/16W 1% 0603 SMD
RES 20.5K OHM 1/16W 1% 0603 SMD
RES 24.9K OHM 1/16W 1% 0603 SMD
R21, R63
R22
R23
R13, R14, R15, R17, R19, R20,
R27, R43, R44, R57, R58
R5
R11, R12
R61, R62
R51, R53, R59
R3
R1
R52, R54, R55, R60
R2, R4, R24, R25, R26, R45, R46,
R47, R48, R49, R50
R6, R41
R56
R35
R16, R18
2 Panasonic
1 Panasonic
1 Panasonic
11
1
2
2
3
1
1
4
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
ERJ-3EKF49R9V
ERJ-3EKF3320V
ERJ-3EKF1001V
ERJ-3EKF1501V
ERJ-3EKF2001V
ERJ-3EKF2491V
ERJ-3EKF3321V
ERJ-3EKF4221V
P49.9HTR-ND
P332HTR-ND
P1.00KHTR-ND
P1.50KHTR-ND
P2.00KHTR-ND
P2.49KHTR-ND
P3.32KHTR-ND
P4.22KHTR-ND
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
11
2
1
1
2
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
ERJ-3EKF4991V
ERJ-3EKF1002V
ERJ-3EKF1502V
ERJ-3EKF2052V
ERJ-3EKF2492V
P4.99KHTR-ND
P10.0KHTR-ND
P15.0KHTR-ND
P20.5KHTR-ND
P24.9KHTR-ND
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
TAS3002/TAS3004 Reference Design Board Rev. 1
Page 2 of 2
RESISTORS -- CONTINUED
TYPE / SIZE
Item
Number
38
39
DESCRIPTION
REFERENCE DESIGNATORS
MFG
MFG PART NUMBER
QTY
40 R0805
41
42
43 R1206
44
45
RC0805
RC1206
VENDOR PART
NUMBER
VENDOR
RES 47.5K OHM 1/16W 1% 0603 SMD
RES 249K OHM 1/16W 1% 0603 SMD
R7, R9, R10, R28
R8
4 Panasonic
1 Panasonic
ERJ-3EKF4752V
ERJ-3EKF2493V
P47.5KHTR-ND
P249KHTR-ND
DIGIKEY
DIGIKEY
RES 1.0 OHM 1/10W 5% 0805 SMD
RES 215 OHM 1/10W 1% 0805 SMD
RES 649 OHM 1/10W 1% 0805 SMD
RES .1 OHM 1/8W 5% 1206 SMD
RESISTOR 1.0 OHM 1/8W 5% 1206
RES 10 OHM 1/8W 1% 1206 SMD
R40
R36
R39
R31, R32, R33
R30, R37, R38
R29, R34, R42
1
1
1
3
3
3
ERJ-6RQJ1R0V
ERJ-6ENF2150V
ERJ-6ENF6490V
ERJ-8RSJR10V
ERJ-8GEYJ1R0V
ERJ-8ENF10R0V
P1.0BTR-ND
P215CTR-ND
P649CTR-ND
P.10PTR-ND
P1.0ECT-ND
P10.0FTR-ND
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
MFG PART NUMBER
VENDOR PART
NUMBER
VENDOR
EXC-ML20A390U
MI1206K310R-00
P10191TR-ND
240-1036-2-ND
DIGIKEY
DIGIKEY
MFG PART NUMBER
VENDOR PART
NUMBER
VENDOR
1 DIODES IINC
MICROCHIP
1 Technology
1 Chicago Miniature
1N4148
LL4148DICT-ND
DIGIKEY
24LC64-IP
CMD15-21VGD/TR8
24LC64-I/P-ND
L62305TR-ND
DIGIKEY
DIGIKEY
1 ZETEX
1 ZETEX
1 ECS
National
1 Semiconductor
2N7002TA
FMMT2222ATA
ECS-122.8-S-4
2N7002TR-ND
FMMT2222ATR-ND
X174-ND
DIGIKEY
DIGIKEY
DIGIKEY
LM317EMP
LM317EMPTR-ND
DIGIKEY
MFG PART NUMBER
VENDOR PART
NUMBER
VENDOR
161-3503
CP-3535N-ND
16PJ097
CP-2460-ND
S1011-02-ND
SC1154-ND
P8087STR-ND
ED56083-ND
S9000-ND
MOUSER
DIGIKEY
MOUSER
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
DIGIKEY
VENDOR PART
NUMBER
VENDOR
SJ5303-7-ND
DIGIKEY
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
Panasonic
FERRITE BEADS
TYPE / SIZE
Item
Number
DESCRIPTION
REFERENCE DESIGNATORS
MFG
QTY
46 FB0805
47 FB1206
FB0805
FB1206
BEAD CORE 39 OHM 4A 0805 SMD
FERRITE SMT 1206 1.5A 31 OHMS
FB3
FB2
1 Panasonic
1 STEWARD
SEMICONDUCTORS
TYPE / SIZE
Item
Number
DESCRIPTION
REFERENCE DESIGNATORS
MFG
QTY
48 LL4148
DL-35
1N4148, DIODE 100V 500MW FAST
SWITCHING
CR1
49 24LC64
50 LED_CMD15
DIP8
LED_CMD15
IC, 24LC64
LED GREEN DIFF 1206 SMD
EPROM
LED1
51 2N7002
SOT23-DBV3
52 FMMT2222A SOT23-DBV3
53 CRYSTAL-SCKT
XTAL_SCKT
TRANS 60V N CHANNEL MOSFET TO236 NFET1
Transistor, 2N2222A
Q1
12.288MHz
Y1
54 LM317EMP
Voltage Regulator LM317
SOT-223
VR1
CONNECTORS
Item
Number
55
56
57
58
59
60
61
62
63
TYPE / SIZE
DESCRIPTION
REFERENCE DESIGNATORS
MFG
QTY
MINI_ST_SW JACK_3.5MM-ST_SW
3.5mm Stereo SW
MINI_STEREO JACK_3.5MM-ST CONN AUDIO JACK 3.5MM STEREO
RCA_16PJ097 RCA_16PJ097
Left OUT, Right OUT
PS2-6F
PS2_CP2460
MINI-DIN RECEPT UNSHIELD 6 POS
JMP2
SIP2_040
No Value
PWRJACK_MINI
JACK_RASH712P CONN 2.5MM PWRJACK HYBRID SMD
SW_P8050
SW_P8050
SWITCH LIGHT TOUCH 240GF SMD
24LC64
DIP8
8 pin Dip socket
SHORTING JUMPER TIN
J1
J2(Line In), J3(Mic In)
J4(Left Out), J5(Right Out)
J6
JP1, JP2, JP3, J7(RINB)
PJ1
S1, S2, S3, S4, S5, S6
EPROM
JP3 (install after item 59 installed
1
2
2
1
4
1
6
1
1
DGS PRO Audio
CUI STACK
dGS PRO Audio
CUI STACK
Sullins Electronics
SWITCHCRAFT
Panasonic
Mill-Max
Sullins Electronics
SJ-3535N
16PJ097
MD-60S
PZC02SAAN
RASH712
EVQ-PPDA25
110-13-308-41-001
STC02SYAN
HARDWARE
Item
Number
64
TYPE / SIZE
DESCRIPTION
REFERENCE DESIGNATORS
MFG
MFG PART NUMBER
QTY
BUMPON HEMISPHERE .44X20 CLEAR
Electronic Specialty
4 Market (3M)
SJ-5303 (CLEAR)
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Texas Instruments:
DA-REF105