User's Guide TAS3108EVM2 User's Guide Evaluation Module for the

TAS3108EVM2 User's Guide
Evaluation Module for the
TAS3108 Digital Audio Signal Processor
User's Guide
NOVEMBER 2006
Digital Audio and Video Products
SLEU065A
TAS3108EVM2 User's Guide
Evaluation Module for the
TAS3108 Digital Audio Signal Processor
User's Guide
Literature Number: SLEU065A
SEPTEMBER 2005 – Revised NOVEMBER 2006
Contents
Preface ............................................................................................................................... 5
1
1.1
1.2
1.3
1.4
2
3
................................................................................................................... 7
................................................................................ 8
PCB Key Map ....................................................................................................... 9
Input Board ......................................................................................................... 10
Output Board ....................................................................................................... 11
Overview
TAS3108EVM2 System Features
Quick Setup Guide
.................................................................................................... 13
2.1
Electrostatic Discharge Warning ................................................................................ 14
2.2
Unpacking the EVM ............................................................................................... 14
2.3
Power Supply Setup .............................................................................................. 15
2.4
Digital Audio Inputs/Outputs ..................................................................................... 15
2.5
Master/Slave Mode
2.6
TAS3108 Software Installation
System Interfaces
...............................................................................................
..................................................................................
15
16
..................................................................................................... 17
3.1
Control Interface (J11), Input .................................................................................... 18
3.2
Digital Audio Interface, Input (J12) .............................................................................. 19
3.3
Control Interface, Output (J21) .................................................................................. 20
3.4
Digital Audio Interface, output (J22) ............................................................................ 21
3.5
Connectors on the Input-USB board ............................................................................ 21
3.6
3.5.1
Analog Inputs ............................................................................................. 21
3.5.2
SPDIF Coax ............................................................................................... 22
3.5.3
AP PSIA Interface ........................................................................................ 22
3.5.4
I2C Connector (J301) .................................................................................... 24
3.5.5
Control Interface (J800) ................................................................................. 24
Connectors on the DAC8-DIT2 Board .......................................................................... 25
3.6.1
Analog Outputs ........................................................................................... 25
3.6.2
3.6.2 SPDIF Coax ........................................................................................ 26
Important Notices ............................................................................................................... 27
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Contents
3
List of Figures
1-1
1-2
1-3
1-4
1-5
2-1
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
TAS3108EVM2 System ..................................................................................................... 8
Physical Structure for the TAS3108EVM2 (Rough Outline) ............................................................ 9
Input Board Outline ........................................................................................................ 10
Physical Structure for Output DAC8-DIT2 Board Outline ............................................................. 11
Complete System .......................................................................................................... 12
TAS3108 GDE Window ................................................................................................... 16
J200… J203 Pin Pumbers ................................................................................................ 21
J140 Pin Numbers ......................................................................................................... 22
AP PSIA Default Setting ................................................................................................... 22
AP PSIA Settings Using External I2S Source .......................................................................... 23
AP PSIA Interface Pin Numbers ......................................................................................... 23
J301 Pin Numbers ......................................................................................................... 24
J71 to J74 Pin Numbers ................................................................................................... 25
J62 Pin Numbers ........................................................................................................... 26
List of Tables
1
2-1
3-1
3-2
3-3
3-4
3-5
3-6
3-7
3-8
3-9
3-10
3-11
4
Related Documentation from Texas Instruments ........................................................................ 6
Recommended Supply Voltages for DAC8DIT2 Board ............................................................... 15
J11 Pin Description ........................................................................................................ 18
J12 Pin Description ........................................................................................................ 19
J21 Pin Description ........................................................................................................ 20
J22 Pin Description ........................................................................................................ 21
J200 Pin Description (Similar for J201 to J203) ........................................................................ 21
J140 Pin Description ....................................................................................................... 22
AP PSIA Pin Description .................................................................................................. 23
J301 Pin Description ....................................................................................................... 24
J800 Pin Description ....................................................................................................... 24
J71 Pin Description ........................................................................................................ 25
J62 Pin Description ........................................................................................................ 26
List of Figures
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Preface
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2006
Read This First
About This Manual
This manual describes the operation of the TAS3108EVM2 evaluation module from Texas Instruments.
How to Use this Manual
This document contains the following chapters:
Chapter 1 - Overview
Chapter 2 - Quick Setup Guide
Chapter 3 - System Interfaces
Information About Cautions and Warnings
This manual may contain cautions and warnings.
This is an example of a caution statement.
CAUTION
A caution statement describes a situation that could potentially
damage your software or equipment.
This is an example of a warning statement.
WARNING
A warning statement describes a situation that could potentially
cause harm to you.
The information in a caution or a warning is provided for your protection. Please read each caution and
warning carefully.
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Related Documentation from Texas Instruments
Related Documentation from Texas Instruments
The following table contains a list of data manuals that have detailed descriptions of the integrated circuits
used in the design of the TAS3108EVM2. The data manuals can be obtained at the URL
http://www.ti.com.
Table 1. Related Documentation from Texas Instruments
PART NUMBER
LITERATURE NUMBER
TAS3108
SLES152
TLV1117-33
SLVS561
TPS3825-33
SLVS165
Additional Documentation
1. TAS3108EVM2 Application Report
2. Graphical Development tool (GDE) for TAS3108 (GDE version 1.11 or later)
3. General Application Notes
Trademarks
PurePath Digital is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
6
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Chapter 1
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Overview
The TAS3108EVM2 PurePath Digital™ customer evaluation amplifier module
demonstrates the digital audio processor TAS3108/TAS3108IA from Texas Instruments
(TI).
TAS3108DCP/TAS3108IADCP is a fully programmable high-performance audio
processor. It uses an efficient, custom, multi-instruction programming environment
optimized for digital audio processing algorithms. The TAS3108/TAS3108IA
architecture provides high-quality audio processing by using a 48-bit data path, 28-bit
filter coefficients, and a single-cycle 28 × 48-bit multiplier with a 76-bit accumulator. An
embedded 8051 microprocessor provides algorithm and data control for the
TAS3108/TAS3108IA. The TAS3108 is the commercial version, intended for home
audio and other commercial applications. The TAS3108IA is the automotive version
that is qualified for use in automotive applications. This EVM uses the TAS3108
version, and the active/passive parts used are not qualified for automotive use.
This EVM is delivered together with two boards: an input board with SPDIF, ACD, and
USB for PC control, and an output board with DACs and a SPDIF transmitter. This
system is a complete eight-channel digital audio processor system that includes digital
input/output (S/PDIF), analog inputs/outputs, interface to PC, and DAP features like
digital volume control, input and output mixers, auto mute, equalization, tone controls,
loudness, dynamic range compression, and surround effects.
The TAS3108 applications could be automotive sound systems, digital televisions,
home theater systems, mini-component audio systems, and pro-audio.
Replacing the DAC-DIT output board with one of the TI PurePath digital-amplifier EVMs
makes it possible to test the TAS3108 with a speaker connected directly. Examples of
EVMs that can be connected include, but are not limited to, TAS5508-5142K7EVM,
TAS5518-5152K8EVM, TAS5518-5182C8EVM2, and TAS5086-5186V6EVM. This
system is designed for home theater applications such as A/V receivers, DVD
mini-component systems, home theater in a box (HTIB), DVD receivers, or plasma
display panels (PDP).
Topic
1.1
1.2
1.3
1.4
..................................................................................................
Page
TAS3108EVM2 System Features ................................................... 8
PCB Key Map ............................................................................. 9
Input Board .............................................................................. 10
Output Board ............................................................................ 11
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TAS3108EVM2 System Features
1.1
TAS3108EVM2 System Features
•
•
•
•
•
•
•
•
Socketed EEPROM for download of program and coefficients
Eight-channel analog-to-digital converter, four PCM1802 devices, 102-dB DYR A-weighted
Eight-channel digital-to-analog converter, two PCM4104 devices, 116-dB DYR A-weighted
Two-channel SPDIF receiver, coaxial and optical input
Two-channel SPDIF transmitter, coaxial and optical output
I2S input and output connectors
USB-to-PC connection for software control
Double-sided plated-through PCB layout
Power
Supplies
±15 V
8-Channel
Analog
Input
TAS3108EVM2
Module
Control Inferface
Control Inferface
USB
Interface
Power
Supplies
+5 V
±12 V
8-Channel
Analog
Output
I2C Bus
I2C Bus
TAS3108
Optical and
Coaxial
S/PDIF Input
EEPROM
I2S Bus
I2S Bus
Example
TI Input-USB Board
Optical and
Coaxial
S/PDIF Ouput
Example
TI DAC-DIT Board
Figure 1-1. TAS3108EVM2 System
8
Overview
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PCB Key Map
1.2
PCB Key Map
Physical structure for the TAS3108EVM2 is illustrated in Figure 1-2.
Figure 1-2. Physical Structure for the TAS3108EVM2 (Rough Outline)
U41 is the TAS3108 device. U33 is the EEPROM for program and coefficient storage. Digital audio data
(I2S) is input on J12 and output on J22. J11 is used for I2C control, reset signal, and power-supply
voltage. Signals in J11 are duplicated in J21 for further control of a DAC output board or speaker amplifier.
D31, a green LED, indicates that the power-supply voltage is within specifications and that the device is
brought out of reset.
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Input Board
1.3
Input Board
The input board contains an eight-channel ADC, SPDIF receiver, and USB connection. Buttons for MUTE,
RESET, and selection between 48-kHz and 96-kHz sample rate.
Physical structure for the input-USB board is illustrated in Figure 1-3.
USB
USB Connector
Connector
RESET
Button
RESET but
ton (Board)
(board )
ANALOG
ANALO G INPUT
INPUT --Ch
Ch11and
and2 2
MUTE
UNMUTE
M UTE //UNM
UTE
ANALOG
Ch 33and
ANALO G INPUT
INPUT --Ch
and4 4
ANALOG
ANALO GSample
Sam pleRate
Rate
ANALOG
Ch 5 5and
ANALO G INPUT
INPUT- -Ch
and6 6
ANALOG
Ch 77and
ANALO G INPUT
INPUT --Ch
and8 8
Input
InputIndicator
indicator
DIGITAL
DIGITALINPUT
INPUT- Optical
-O ptical
Digital
Input
Digitali
nputSelect
select
DIGITALINPUT
INPUT- Coaxial
-Coaxial
DIGITAL
Figure 1-3. Input Board Outline
10
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Output Board
1.4
Output Board
•
•
•
Eight-channel digital-to-analog converter, two PCM4104 devices, automatic sample-rate detection, and
supports 44.1 kHz, 48 kHz, and 96 kHz in this application. Relation between master clock and sample
rate clock must be 256. 4-Vrms for 0-dB and 116-dB DYR A-weighted.
Two-channel digital audio output, SPDIF format, DIT4192, optical and electrical output
±12-V and 5-V power-supply regulators
The physical structure of the output DAC8-DIT2 board is illustrated in Figure 1-4.
+/-15 V Power Supply Connector
ANALOG OUTPUT - Ch 1 and 2
ANALOG OUTPUT - Ch 3 and 4
ANALOG OUTPUT - Ch 5 and 6
ANALOG OUTPUT - Ch 7 and 8
SPDIF Output - Optical
SPDIF Output - Coaxial
SDIN1
SDIN2
SDIN3
U301
U301
U301
U301
SPDIF DATA OUT select
SDIN4
Figure 1-4. Physical Structure for Output DAC8-DIT2 Board Outline
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Output Board
A picture of the complete system is shown in Figure 1-5. The input board is to the left, the TAS3108EVM2
is in the middle, and the output board is to the right.
Figure 1-5. Complete System
12
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Chapter 2
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Quick Setup Guide
This chapter describes the TAS3108EVM2 board, with regard to power supplies and
system interfaces. The chapter provides information regarding handling and unpacking,
absolute operating conditions, and a description of the factory default switch and
jumper configuration.
This chapter provides a step-by-step guide to configuring the TAS3108EVM2 for device
evaluation.
Topic
2.1
2.2
2.3
2.4
2.5
2.6
..................................................................................................
Electrostatic Discharge Warning .................................................
Unpacking the EVM ...................................................................
Power Supply Setup ..................................................................
Digital Audio Inputs/Outputs ......................................................
Master/Slave Mode ....................................................................
TAS3108 Software Installation ....................................................
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14
15
15
15
16
Quick Setup Guide
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Electrostatic Discharge Warning
2.1
Electrostatic Discharge Warning
Many of the components on the TAS3108EVM2 are susceptible to damage by electrostatic discharge
(ESD). Customers are advised to observe proper ESD handling precautions when unpacking and handling
the EVM, including the use of a grounded wrist strap at an approved ESD workstation.
CAUTION
Failure to observe ESD handling procedues may result in damage
to EVM components.
2.2
Unpacking the EVM
Upon opening the TAS3108EVM2 package, please ensure that the following items are included:
• One TAS3108EVM2 board using one TAS3108DCP
• One TI input-USB board for interfacing TAS3108EVM2 with SPDIF receiver and eight-channel
analog-to-digital converter and USB for PC control
• One TI DAC8-DIT2 board for interfacing TAS3108EVM2 with SPDIF transmitter and digital-to-analog
converter outputs and power-supply regulators
• Two signal interface IDC cables for connection to an I2S back-end like the attached TI DAC8-DIT2
board, 14 pin
• Two control interface IDC cables for connection to an I2C back-end like the attached TI DAC8-DIT2
board, 34 pin
• One cable for connecting input-USB board to a USB port on a PC for TAS3108 control by software
• One cable for connecting DAC8-DIT2 board to the power supplies
• One PurePath CD-ROM containing data sheets, application notes, user's guides, gerber files, and PC
software tools
If any of these items are missing, please contact the Texas Instruments Product Information Center
nearest you to obtain a replacement.
Connect the input-USB board to TAS3108EVM2 using the two included delivered IDC cables. Connect
TAS3108EVM2 board to DAC8-DIT2 board using the two included IDC cables.
14
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Power Supply Setup
2.3
Power Supply Setup
The TAS3108EVM2 is powered via the DAC8-DIT2 board or another output board, like a
TAS5086-5186EVM. The DAC8-DIT2 board generates a +5-V supply that is fed to the TAS3108EVM2.
The +5-V supply is further regulated to +3.3 V with the aid of a low-dropout linear regulator, U31.
Set the power supplies to ±15 V, switch off the power supply, connect all cables to the EVM, and switch
on the power supply. Current consumption should be less than is shown in Table 2-1. If it is higher, switch
off the power supply and double check the cabling.
Table 2-1. Recommended Supply Voltages for DAC8DIT2 Board
DESCRIPTION
VOLTAGE LIMITATIONS
CURRENT REQUIREMENT
CABLE
+15 V
+14.5 V to +15.5 V
0.3 A
J31 pin 2
–15 V
–15.5 V to –14.4V
0.1 A
J31 pin 1
CAUTION
Applying voltages above the limitations given in the table above
may cause permanent damage to your hardware.
2.4
Digital Audio Inputs/Outputs
The digital audio inputs can be connected to the board in two ways, either in the SPDIF format on the
coaxial connector or optical TosLink input or in I2S format on connector J12. The pinouts are shown in
Section 3.5 and Section 3.6.
The digital audio outputs can be both SPDIF and I2S. SPDIF format is output on the coaxial connector
(J62) or optical TosLink® connector (J61), or I2S format is output on connector J22. Jumpers J301 and
J302 select the SDATA line to feed to the SPDIF transmitter.
2.5
Master/Slave Mode
The TAS3108EVM2 is delivered in Slave mode.
The SPDIF receiver, on the input board, is the MCLK clock master in this system.
The digital audio outputs can be both SPDIF and I2S. SPDIF format is output on coaxial connector, J62,
or optical TosLink, J61, or in I2S format on connector J22. Jumpers J301 and J302 selects the SDATA
line to feed to the SPDIF transmitter.
After each reset, either auto-generated during power-up sequence or manual pressing RESET button, the
input-USB board is always in the following configuration:
• Mute enabled
• Analog input set to 48-kHz sample rate
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TAS3108 Software Installation
To start up a PurePath EVM, use following procedure:
1. Turn on all power supplies before connecting USB interface.
2. Connect USB interface and press RESET button.
3. Start GUI software and press RESET in GUI window. Make sure that the "USB attached" LED is on
and that the status indicator changes to "OK".
4. Load EVM configuration file. Ensure that the correct file is selected, according to the EVM in use.
5. Press MUTE to unmute the EVM.
6. The EVM is now ready to use.
2.6
TAS3108 Software Installation
The TAS3108 GDE and IDE software provide easy programming of the TAS3108 and enable
programming of the EEPROM on the EVM board.
1. Insert the PurePath CD-ROM
• If it does not autorun, run the ReadMe file.
• Select "SOFTWARE" in the menu to the left.
• Select the TAS3108 tools, and follow the instructions given to install.
2. After installation, turn on power supplies and connect USB cable to input-USB board.
3. Start GDE program from the Windows Start menu. Startup of GDE requires a few seconds.
Figure 2-1. TAS3108 GDE Window
To test the connection from PC to EVM, load the TAS3108EVM2 test file (helloworld.pfw), located in
C:\Program Files\Texas Instruments Inc\TAS3108 Development Tools\Examples\HelloWorld.pfw.
For more advanced use of the GDE, see the GDE online help, GDE release notes, and TAS3108 MCU
programmer's reference guide.
16
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Chapter 3
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System Interfaces
This chapter describes the TAS3108EVM2 board regard to power supplies and system
interfaces.
Topic
3.1
3.2
3.3
3.4
3.5
3.6
..................................................................................................
Control Interface (J11), Input ......................................................
Digital Audio Interface, Input (J12) ..............................................
Control Interface, Output (J21)....................................................
Digital Audio Interface, output (J22) ............................................
Connectors on the Input-USB board ............................................
Connectors on the DAC8-DIT2 Board ..........................................
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19
20
21
21
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System Interfaces
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Control Interface (J11), Input
3.1
Control Interface (J11), Input
This interface connects the TAS3108EVM2 board to a TI input-USB board. This is a general-purpose
interface, so not all signals are used by the TAS3108. Unused signals are shaded in Table 3-1.
Table 3-1. J11 Pin Description
NET-NAME AT
SCHEMATICS
PIN NO.
18
DESCRIPTION
1
GND
2
RESERVED
Ground
3
GND
Ground
4
RESET
System reset (bidirectional). Activate MUTE before RESET for quiet reset.
5
RESERVED
6
MUTE
Ramp volume from any setting to noiseless soft mute. Mute can also be activated by I2C.
7
PDN
Power down. TAS3108 goes ino power down state when activated.
8
RESERVED
9
RESERVED
10
SDA
I2C data clock
11
GND
Ground
12
SCL
I2C bit clock
13
GPIO1
14
GPIO2
15
GPIO3
16
GPIO4
General-purpose input/output 4, used to reset the TAS3108 after programming.
17
GND
Ground
18
GPIO5
19
GPIO6
20
SD
21
RESERVED
22
OTW
23
RESERVED
24
RESERVED
25
GND
Ground
26
GND
Ground
27
RESERVED
28
RESERVED
29
RESERVED
30
RESERVED
31
GND
Ground
32
GND
Ground
33
+5V
+5-Vdc power supply (output)
34
+5V
+5-Vdc power supply (output)
System Interfaces
Shutdown reporting. Used for speaker-output EVMs.
Temperature warning. Used for speaker-output EVMs.
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Digital Audio Interface, Input (J12)
3.2
Digital Audio Interface, Input (J12)
The digital audio interface contains digital audio signal data (I2S), clocks, etc. See the TAS3108 data
manual for signal timing and details not covered in this document.
Table 3-2. J12 Pin Description
PIN
NUMBER
NET-NAME AT
SCHEMATICS
DESCRIPTION
1
GND
Ground
2
MCLK
Master clock input
3
GND
Ground
4
SDIN1
I2S data 1, Channel 1 and 2
5
SDIN2
I2S data 2, Channel 3 and 4
6
SDIN3
I2S data 3, Channel 5 and 6
7
SDIN4
I2S data 4, Channel 7 and 8
8
Reserved
9
Reserved
10
GND
Ground
11
SCLK
I2S bit clock
12
GND
Ground
13
LRCLK
I2S left-right clock
14
GND
Ground
15
16
Reserved
GND
Ground
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Control Interface, Output (J21)
3.3
Control Interface, Output (J21)
This interface connects the TAS3108EVM2 board to a TI DAC8-DIT2 output board or a general amplifier
power EVM. This is a general-purpose interface, so not all signals are used by the TAS3108. Unused
signals are shaded in Table 3-3.
Table 3-3. J21 Pin Description
NET-NAME AT
SCHEMATICS
PIN NO.
20
DESCRIPTION
1
GND
Ground
2
RESERVED
3
GND
Ground
4
RESET
System reset (bidirectional). Activate MUTE before RESET for quiet reset.
5
RESERVED
6
MUTE
Ramp volume from any setting to noiseless soft mute. Mute can also be activated by I2C.
7
PDN
Power down. TAS3108 goes ino power down state when activated.
8
RESERVED
9
RESERVED
10
SDA
I2C data clock
11
GND
Ground
12
SCL
I2C bit clock
13
GPIO1
14
GPIO2
15
GPIO3
16
GPIO4
General-purpose input/output 4, used to reset the TAS3108 after programming.
17
GND
Ground
18
GPIO5
19
GPIO6
20
SD
21
RESERVED
22
OTW
23
RESERVED
24
RESERVED
25
GND
Ground
26
GND
Ground
27
RESERVED
28
RESERVED
29
RESERVED
30
RESERVED
31
GND
Ground
32
GND
Ground
33
+5V
+5-Vdc power supply (output)
34
+5V
+5-Vdc power supply (output)
System Interfaces
Shutdown reporting. Used for speaker output EVMs.
Temperature warning. Used for speaker output EVMs.
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Digital Audio Interface, output (J22)
3.4
Digital Audio Interface, output (J22)
The digital audio interface contains digital audio signal data (I2S), clocks, etc. See the TAS3108 data
manual for signal timing and details not covered in this document.
Table 3-4. J22 Pin Description
PIN NO.
NET-NAME AT
SCHEMATICS
1
GND
Ground
2
MCLKO
Master clock output
3
GND
Ground
4
SDOUT1
I2S data 1, channels 1 and 2
5
SDOUT2
I2S data 2, channels 3 and 4
6
SDOUT3
I2S data 3, channels 5 and 6
7
SDOUT4
I2S data 4, channels 7 and 8
8
Reserved
9
Reserved
10
GND
Ground
11
SCLKOUT
I2S bit clock output
12
GND
Ground
13
LRCLKO
I2S left-right clock output
14
GND
Ground
15
16
3.5
DESCRIPTION
Reserved
GND
Ground
Connectors on the Input-USB board
3.5.1 Analog Inputs
The mini-jack 3.5-mm connector for analog inputs is shown in Figure 3-1.
1
2
3
4
PCB Connector (Top View)
Figure 3-1. J200… J203 Pin Pumbers
Table 3-5. J200 Pin Description (Similar for J201 to J203)
PIN NO.
NET-NAME AT
SCHEMATICS
DESCRIPTION
1
CH1
Channel 1 input – tip
2
AGND
Analog ground – sleeve
3
4
For future use
CH2
Channel 2 input – ring
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Connectors on the Input-USB board
3.5.2 SPDIF Coax
The SPDIF input for coax is shown in Figure 3-2.
2
1
3
4
PCB Connector (Top View)
Figure 3-2. J140 Pin Numbers
Table 3-6. J140 Pin Description
PIN NO.
NET-NAME AT
SCHEMATICS
DESCRIPTION
1
GND
Ground
2
IN1
Coax SPDIF input
3
IN1
Coax SPDIF input
4
IN1
Coax SPDIF input
3.5.3 AP PSIA Interface
The input-USB board provides the ability to input I2S directly into the PurePath EVM. I2S source could be,
for example, an Audio Precision with a Programmable Serial Interface Adaptor (PSIA).
Default jumper settings are shown in Figure 3-3. In this setting, data out is: analog channels 1 and 2
routed to Data1, analog channels 3 and 4 to Data2, etc., when analog inputs are selected. When digital
input is selected, either coax or TosLink channel A+B is copied into all data outputs.
Figure 3-3. AP PSIA Default Setting
When using the input-USB board with an external I2S source connection, the jumper settings in Figure 3-4
should be used. Placing the jumper as shown copies I2S data into all data outputs.
22
System Interfaces
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Connectors on the Input-USB board
DATA
LRCLK
SCLK
MCLK
GND
SDATA4
SDATA3
SDATA2
SDATA1
LRCLK
SCLK
MCLK
Figure 3-4. AP PSIA Settings Using External I2S Source
3
2
1
Figure 3-5. AP PSIA Interface Pin Numbers
Table 3-7. AP PSIA Pin Description
NET-NAME AT
SCHEMATICS
PIN NO.
MCLK
SCLK
LRCLK
SDATA1
SDATA2
SDATA3
DESCRIPTION
1
MCLK Source
From MCLK source
2
MCLK Out
MCLK output
3
GND
Ground
1
SCLK Source
From SCLK source
2
SCLK Out
SCLK ouput
3
GND
Ground
1
LRCLK Source
From LRCLK source
2
LRCLK Out
LRCLK output
3
GND
Ground
1
SDATA1 Source
From SPDIF or analog channels 1 and 2
2
SDATA1 Out
SDATA1 output
3
GND
Ground
1
SDATA2 Source
From SPDIF or analog channels 3 and 4
2
SDATA2 Out
SDATA2 output
3
SDATA1 Out
Connected to SDATA1 Out
1
SDATA3 Source
From SPDIF or analog channels 5 and 6
2
SDATA3 Out
SDATA3 output
3
SDATA1 Out
Connected to SDATA1 Out
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006
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Connectors on the Input-USB board
Table 3-7. AP PSIA Pin Description (continued)
NET-NAME AT
SCHEMATICS
PIN NO.
SDATA4
DESCRIPTION
1
SDATA4 Source
From SPDIF or analog channels 7 and 8
2
SDATA4 Out
SDATA4 output
3
SDATA1 Out
Connected to SDATA1 Out
3.5.4 I2C Connector (J301)
3
2
1
PCB Connector (Top View)
Figure 3-6. J301 Pin Numbers
Table 3-8. J301 Pin Description
PIN NO.
NET-NAME AT
SCHEMATICS
DESCRIPTION
1
SCL
I2C clock
2
SDA
I2C data
3
GND
Ground
3.5.5 Control Interface (J800)
This interface connects the EVM.
Table 3-9. J800 Pin Description
PIN NO.
24
NET-NAME AT
SCHEMATICS
DESCRIPTION
1
GND
2
RESERVED
3
GND
Ground
4
RESET
System reset (bidirectional). Activate MUTE before RESET for quiet reset.
5
RESERVED
6
MUTE
7
RESERVED
8
RESERVED
9
RESERVED
10
SDA
I2C data clock
11
GND
Ground
12
SCL
I2C bit clock
13
GPIO1
General-purpose port for GUIs
14
GPIO2
General-purpose port for GUIs
15
GPIO3
General-purpose port for GUIs
16
GPIO4
General-purpose port for GUIs
17
GND
Ground
18
GPIO5
General-purpose port for GUIs
System Interfaces
Ground
Activate MUTE pin on modulator
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Connectors on the DAC8-DIT2 Board
Table 3-9. J800 Pin Description (continued)
PIN NO.
3.6
NET-NAME AT
SCHEMATICS
DESCRIPTION
19
GPIO6
General-purpose port for GUIs
20
SD1
Shutdown reporting
21
SD2
Shutdown reporting
22
TW1
Temperature warning
23
TW2
Temperature warning
24
RESERVED
25
GND
Ground
26
GND
Ground
27
RESERVED
28
RESERVED
29
RESERVED
30
RESERVED
31
GND
Ground
32
GND
Ground
33
+5V
+5-Vdc power supply (output)
34
+5V
+5-Vdc power supply (output)
Connectors on the DAC8-DIT2 Board
3.6.1 Analog Outputs
The mini-jack 3.5-mm connector for analog outputs is shown in Figure 3-7.
1
2
3
4
PCB Connector (Top View)
Figure 3-7. J71 to J74 Pin Numbers
Table 3-10. J71 Pin Description
PIN NO.
NET-NAME AT
SCHEMATICS
DESCRIPTION
1
CH1
Channel 1, left output – tip
2
AGND
Analog ground – sleeve
3
4
For future use
CH2
Channel 2, right output – ring
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Connectors on the DAC8-DIT2 Board
3.6.2 3.6.2 SPDIF Coax
The SPDIF input for coax is shown in Figure 3-8.
2
1
3
4
PCB Connector (Top View)
Figure 3-8. J62 Pin Numbers
Table 3-11. J62 Pin Description
PIN NO.
26
NET-NAME AT
SCHEMATICS
DESCRIPTION
1
GND
Ground
2
IN1
Coax SPDIF output
3
IN1
Coax SPDIF output
4
IN1
Coax SPDIF output
System Interfaces
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