Eurotech Catalyst FX is a display and audio subsystem that provides you with LVDS expansion capabilities. It enables you to connect your device to various display and audio interfaces, making it a versatile solution for a wide range of applications.
With Eurotech Catalyst FX, you can effortlessly connect to LVDS displays, touch panel controllers, and UART devices, giving you the flexibility to create custom user interfaces. Additionally, it features audio inputs and outputs, allowing you to seamlessly integrate audio into your system.
Here are some possible use cases for Eurotech Catalyst FX:
Eurotech Catalyst FX is a display and audio subsystem that provides you with LVDS expansion capabilities. It enables you to connect your device to various display and audio interfaces, making it a versatile solution for a wide range of applications.
With Eurotech Catalyst FX, you can effortlessly connect to LVDS displays, touch panel controllers, and UART devices, giving you the flexibility to create custom user interfaces. Additionally, it features audio inputs and outputs, allowing you to seamlessly integrate audio into your system.
Here are some possible use cases for Eurotech Catalyst FX:
Rev 1 – December 2009 – 110124-33001
USER MANUAL
LVDS Expansion Board
Catalyst FX Display and Audio Subsystem
DIGITAL TECHNOLOGIES FOR A BETTER WORLD
www.eurotech.com
© 2009 Eurotech Inc.
Trademarks
All trademarks both marked and not marked appearing in this document are the property of their
respective owners.
Document Revision History
REVISION
DESCRIPTION
DATE
1
Initial release
December 2009
Table of Contents
3
Table of Contents
Trademarks .................................................................................................................................................... 2
Document Revision History ............................................................................................................................ 2
Table of Contents ............................................................................................................................................ 3
Important User Information ............................................................................................................................ 5
Safety Notices and Warnings ......................................................................................................................... 5
Installation in Cupboards and Safes ......................................................................................................... 5
Do Not Operate in an Explosive Atmosphere ........................................................................................... 5
Alerts that can be found throughout this manual ...................................................................................... 5
Use an Appropriate Power Supply ........................................................................................................... 6
Antistatic Precautions ............................................................................................................................... 6
Life Support Policy ......................................................................................................................................... 6
Warranty ......................................................................................................................................................... 6
CE Notice ....................................................................................................................................................... 6
WEEE ............................................................................................................................................................. 7
RoHS .............................................................................................................................................................. 7
Technical Assistance ..................................................................................................................................... 7
Transportation ........................................................................................................................................... 7
Conventions ................................................................................................................................................... 8
Product Overview ............................................................................................................................................ 9
Block Diagram ................................................................................................................................................ 9
Hardware Specification ................................................................................................................................. 10
Display Interface .......................................................................................................................................... 10
LVDS Display .......................................................................................................................................... 10
Backlight ................................................................................................................................................. 10
Touch Panel Controller or UART ............................................................................................................ 10
Audio Interface ............................................................................................................................................. 11
Audio Inputs: Stereo Line In and Microphone ....................................................................................... 11
Audio Outputs: Stereo Line Out and S/PDIF ......................................................................................... 11
Mechanical ................................................................................................................................................... 12
Connectors and Indicators ........................................................................................................................... 13
Identifying Connectors ................................................................................................................................. 13
Indicators ...................................................................................................................................................... 13
D12: Touch Panel LED .......................................................................................................................... 13
Signal Headers ............................................................................................................................................. 14
J1: Expansion Connector ...................................................................................................................... 14
J2: Microphone Input ............................................................................................................................. 14
J3: Line In Left ....................................................................................................................................... 14
J4: Line In Right ..................................................................................................................................... 14
J5: Line Out Left .................................................................................................................................... 14
J6: S/PDIF Out ....................................................................................................................................... 14
J7: Line Out Right .................................................................................................................................. 15
J8: Display 1: LVDS Display, Backlight, and Touch Panel ................................................................... 15
J9: Display 2: LVDS Display, Backlight, and Serial Port ...................................................................... 16
System Specifications................................................................................................................................... 17
Power ........................................................................................................................................................... 17
Power Supply .......................................................................................................................................... 17
LVDS Expansion Board - User Manual
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110124-33001
Electrical ....................................................................................................................................................... 17
Reset Input ............................................................................................................................................. 17
LVDS Display .......................................................................................................................................... 17
Touch Panel Controller ........................................................................................................................... 17
Backlight ................................................................................................................................................. 18
Audio Interface ........................................................................................................................................ 18
General ......................................................................................................................................................... 18
Crystal Frequencies ................................................................................................................................ 18
Environmental .............................................................................................................................................. 18
Board Revision History ................................................................................................................................. 19
Eurotech Worldwide Presence ..................................................................................................................... 21
Important User Information
5
Important User Information
In order to lower the risk of personal injury, electric shock, fire, or equipment damage, users must
observe the following precautions as well as good technical judgment, whenever this product is
installed or used.
All reasonable efforts have been made to ensure the accuracy of this document; however, Eurotech
S.p.A. assumes no liability resulting from any error/omission in this document or from the use of the
information contained herein.
Eurotech reserves the right to revise this document and to change its contents at any time without
obligation to notify any person of such revision or changes.
Safety Notices and Warnings
The following general safety precautions must be observed during all phases of operation, service, and
repair of this equipment. Failure to comply with these precautions or with specific warnings elsewhere
in this manual violates safety standards of design, manufacture, and intended use of the equipment.
Eurotech S.p.A. assumes no liability for the customer’s failure to comply with these requirements.
The safety precautions listed below represent warnings of certain dangers of which Eurotech is aware.
You, as the user of the product, should follow these warnings and all other safety precautions
necessary for the safe operation of the equipment in your operating environment.
Installation in Cupboards and Safes
In the event that the product is placed within a cupboard or safe, together with other heat generating
equipment, ensure proper ventilation.
Do Not Operate in an Explosive Atmosphere
Do not operate the equipment in the presence of flammable gases or fumes. Operation of any
electrical equipment in such an environment constitutes a definite safety hazard.
Alerts that can be found throughout this manual
The following alerts are used within this manual and indicate potentially dangerous situations.
Danger, electrical shock hazard:
Information regarding potential electrical shock hazards:
• Personal injury or death could occur. Also damage to the system, connected peripheral
devices, or software could occur if the warnings are not carefully followed.
• Appropriate safety precautions should always be used, these should meet the
requirements set out for the environment that the equipment will be deployed in.
Warning:
Information regarding potential hazards:
• Personal injury or death could occur. Also damage to the system, connected peripheral
devices, or software could occur if the warnings are not carefully followed.
• Appropriate safety precautions should always be used, these should meet the
requirements set out for the environment that the equipment will be deployed in.
Information and/or Notes:
These will highlight important features or instructions that should be observed.
LVDS Expansion Board - User Manual
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110124-33001
Use an Appropriate Power Supply
• Only start the product with a power supply that conforms to the voltage requirements as specified in
Power Supply, page 17. In case of uncertainty about the required power supply, please contact your
local Eurotech Technical Support Team or the electricity authority.
• Use power supplies that are compliant with SELV regulation.
• Use certified power cables. The power cable must fit the product, the voltage, and the required
current.
• Position cable with care. Avoid positioning cables in places where they may be trampled on or
compressed by objects placed on it. Take particular care of the plug, power-point, and outlet of
power cable.
• Avoid overcharging power-points.
Antistatic Precautions
To avoid damage caused by ESD (Electro Static Discharge), always use appropriate antistatic
precautions when handing any electronic equipment.
Life Support Policy
Eurotech products are not authorized for use as critical components in life support devices or systems
without the express written approval of Eurotech S.p.A.
Warranty
For Warranty terms and conditions users should contact their local Eurotech Sales Office.
See Eurotech Worldwide Presence, page 21 for full contact details.
CE Notice
The product described in this manual is marked with the label in accordance with the
1999/5/EC regulation.
Eurotech shall not be liable for use of its products with equipment (i.e. power supplies, personal
computers, etc.) that are not CE marked.
Important User Information
7
WEEE
The information below is issued in compliance with the regulations as set out in the 2002/96/EC
directive, subsequently superseded by 2003/108/EC. It refers to electrical and electronic equipment
and the waste management of such products.
When disposing of a device, including all of its components, subassemblies, and materials that are an
integral part of the product, you should consider the WEEE directive.
The symbol to the right has been attached to the equipment or, if this has not been
possible, on the packaging, instruction literature, and/or the guarantee sheet. By using
this symbol, it states that the device has been marketed after August 13, 2005 and implies
that you must separate all of its components when possible and dispose of them in
accordance with local waste disposal legislations.
• Because of the substances present in the equipment, improper use or disposal of the refuse can
cause damage to human health and to the environment.
• With reference to WEEE, it is compulsory not to dispose of the equipment with normal urban refuse
and arrangements should be instigated for separate collection and disposal.
• Contact your local waste collection body for more detailed recycling information.
• In case of illicit disposal, sanctions will be levied on transgressors.
RoHS
This device, including all it components, subassemblies and the consumable materials that are an
integral part of the product, has been manufactured in compliance with the European directive
2002/95/EC known as the RoHS directive (Restrictions on the use of certain Hazardous Substances).
This directive targets the reduction of certain hazardous substances previously used in electrical and
electronic equipment (EEE).
Technical Assistance
If you have any technical questions, cannot isolate a problem with your device, or have any enquiry
about repair and returns policies, contact your local Eurotech Technical Support Team.
See Eurotech Worldwide Presence, page 21 for full contact details.
Transportation
When transporting any module or system, for any reason, it should be packed using anti-static material
and placed in a sturdy box with enough packing material to adequately cushion it.
Warning:
Any product returned to Eurotech that is damaged due to inappropriate packaging will not be
covered by the warranty.
LVDS Expansion Board - User Manual
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110124-33001
Conventions
The following table describes the conventions for signal names used in this document.
Convention
Explanation
GND
Digital ground plane
#
Active low signal
+
Positive signal in differential pair
-
Negative signal in differential pair
The following table describes the abbreviations for direction and electrical characteristics of a signal
used in this document.
Type
Explanation
I
Signal is an input to the system
O
Signal is an output from the system
IO
Signal may be input or output
P
Power and ground
A
Analog signal
OD
Open-drain
CMOS
3.3 V CMOS
LVTTL
Low Voltage TTL
3.3
3.3 V signal level
5
5 V signal level
HDA
High Definition Audio signal, 3.3 V (default) or 1.5 V
LVDS
Low Voltage Differential Signalling
NC
No Connection
Reserved
Use is reserved to Eurotech
Product Overview
9
Product Overview
The LVDS expansion board expands the functionality of the Catalyst FX by providing display and
audio capabilities. This add-in board mates with the Eurotech-specific expansion connector on the
Catalyst FX carrier board and allows easy customization for your application.
The LVDS expansion board provides the following display and audio capabilities:
• Display Interface
o LVDS display output
o Backlight control
o Touch panel controller or UART (option)
• Audio Interface
o Stereo line input
o Stereo line output
o Microphone input
o Sony/Philips Digital Interconnect Format (S/PDIF) output
Block Diagram
The following diagram illustrates the system organization of the LVDS expansion board. Dotted lines
indicate volume production options.
Figure 1. LVDS Expansion Board Block Diagram
LVDS Display
LVDS Expansion Board
V3.3S
Backlight Cntrl
LVDS
Buffer/Repeater
LVDS
HD Audio
USB Host
Audio Codec
Touch Panel Cntrl
Backlight Cntrl
BKLT
V5S
V9-36
LVDS
TCH_PNL
Serial
BKLT
UART
LVDS Display
Backlight
Touch panel
LVDS Display
Backlight
EIA-232
S/PDIF
Stereo Line Out
Microphone
Stereo Line In
Expansion
Connector
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Hardware Specification
Display Interface
The LVDS expansion board provides two display interfaces. Header J8, page 15 and connector J9,
page 16 provide the signals to drive an LVDS display and backlight. In addition to these signals,
header J8 includes signals to support a resistive touch panel, while connector J9 includes an EIA-232
serial port. The following sections describe these capabilities.
For further details about the LVDS display and backlight capabilities, refer to the Catalyst Module
Design-In Guide (Eurotech document #110122-2003).
LVDS Display
The LVDS expansion board accepts the LVDS display signals from the Catalyst Module, buffers the
signals, and provides them on header J8, page 15 and connector J9, page 16. These signals consist
of four LVDS data pairs, as well as an LVDS pixel clock. A standard LVDS expansion board supports
18-bit (6-bit RGB), with 24-bit (8-bit RGB) color available as a volume production option. Additional
features include software-controlled display power and display scan control. For electrical
specifications, see LVDS Display, page. 17.
The LVDS buffer/repeater on the board includes configurable pre-emphasis to drive long cables. A
standard LVDS expansion board is configured for pre-emphasis off. Other configurations are available
as volume production options. To reduce power consumption, this buffer/repeater includes a software-
controlled input allowing the device to power down when the display is not in use.
Backlight
Most LCDs include one or more cold-cathode fluorescent lamp (CCFL) tubes to backlight the display.
Backlight inverters drive the panel backlights. These circuits are typically external to the display and
generate the several hundred volts required to drive the CCFL tubes. Backlights can easily become
the greatest source of power consumption in a portable system. Applications can dim or turn off the
backlighting to reduce power consumption.
The LVDS expansion board supplies software-controlled backlight power and three backlight control
signals on header J8, page 15 and connector J9, page 16. These control signals originate on the
Catalyst Module and are buffered on the LVDS expansion board. For electrical specifications, see
Backlight, page 18. The following table describes the backlight control signals.
Signal
J8
J9
Description
L_BKLTEN_OUT
10
23
Turns power to the backlight on or off
L_BKLTCTL_OUT
12
22
Controls the intensity of the backlight
L_BKLTSEL_OUT
18
Selects the backlight
Table 1. Backlight Control Signals
Touch Panel Controller or UART
The LVDS expansion board supports either a resistive touch panel or an EIA-232 serial port. Four on-
board resistors select the routing of the USB host port from the Catalyst FX carrier board to a USB
touch panel controller or USB UART. A standard LVDS expansion board is configured for a touch
panel controller, as given in the following table.
Resistor
Feature
Connector
R108, R109
Touch panel (default) J8
R120, R121
EIA-232 serial port
J9
Table 2. Touch Panel or UART Selection
Hardware Specification
11
The following sections describe the signal mapping for a touch panel on header J8. For electrical
specifications, see Touch Panel Controller, page 17.
4-Wire Touch Panel
The following table describes the wiring for 4-wire resistive touch panels on header J8.
J8 Pin
Name
4-Wire
34
TC4
Bottom
24
TC3
36
TC2
Top
38
TC1
Right
40
TC0 Left
Table 3. 4-Wire Touch Panel Wiring
5-Wire Touch Panel
The following table describes the wiring for 5-wire resistive touch panels on header J8.
J8 Pin
Name
5-Wire
34
TC4
Lower left
24
TC3
Upper left
36
TC2
Wiper
38
TC1 Lower right
40
TC0
Upper right
Table 4. 5-Wire Touch Panel Wiring
8-Wire Touch Panel
The following table describes the wiring for 8-wire resistive touch panels on header J8.
J8 Pin
Name
8-Wire
26
SX- Left sense
28
SY-
Top sense
30
SY+ Bottom sense
32
SX+
Right sense
34
TC4
Top
24
TC3
36
TC2
Bottom
38
TC1
Left
40
TC0
Right
Table 5. 8-Wire Touch Panel Wiring
Audio Interface
For its audio interface, the LVDS expansion board uses an Intel
®
High Definition Audio (Intel HD
Audio) compatible codec providing high quality audio in an embedded environment. The following
sections describe the audio inputs and outputs provided by this codec. For electrical specifications,
see Audio Interface, page 18.
Audio Inputs: Stereo Line In and Microphone
The LVDS expansion board supports a stereo line in on RCA jacks J3, page 14 and J4, page 14 and a
microphone on RCA jack J2, page 14.
Audio Outputs: Stereo Line Out and S/PDIF
The LVDS expansion board drives a stereo line out on RCA jacks J5, page 14 and J7, page 15. In
addition, the codec provides a Sony/Philips Digital Interconnect Format (S/PDIF) output on header J6,
page 14 for connectivity to consumer electronic equipment.
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Mechanical
The following mechanical drawings specify the dimensions of the LVDS expansion board, as well as
locations of key components on the board. All dimensions are in inches.
Notice that the LVDS expansion board includes four mounting holes that enable mounting to the
Catalyst FX carrier board.
Figure 2. LVDS Expansion Board Top View
Figure 3. LVDS Expansion Board Side View
Figure 4. LVDS Expansion Board Bottom View
Connectors and Indicators
13
Connectors and Indicators
Identifying Connectors
The following diagrams illustrate the location of key components on the LVDS expansion board.
Figure 5. Connector Location Top View
Figure 6. Connector Location Bottom View
Indicators
This section describes indicators on the LVDS expansion board.
D12: Touch Panel LED
The LVDS expansion board includes one green light-emitting diode (LED) to indicate activity on a
touch panel.
LED
Type
Description
D12
green
Blinking indicates activity on the touch panel
J3
J9
J7 J5
J4
J2
J8
J1
D12
J6
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Signal Headers
The following sections describe the electrical signals available on the connectors of the LVDS
expansion board. Each section provides relevant details about the connector including part numbers,
mating connectors, signal descriptions, and references to related sections.
For the location of the connectors, see Identifying Connectors, page 13.
J1: Expansion Connector
The LVDS expansion board connector J1 mates to the Catalyst FX connector J19 providing all data
and power signals. For additional information about this expansion connector, refer to the Catalyst FX
User Manual (Eurotech document #110124-3010).
J2: Microphone Input
Board connector: RCA jack, CUI RCJ-041
Mating connector: RCA plug
RCA jack J2 provides a connection to a microphone. For further details, see Audio Interface, page 11.
J3: Line In Left
Board connector: RCA jack, CUI RCJ-041
Mating connector: RCA plug
The LVDS expansion board supports a stereo line input with jack J3 accepting the left channel input
and jack J4 accepting the right channel input. For further details, see Audio Interface, page 11.
J4: Line In Right
Board connector: RCA jack, CUI RCJ-041
Mating connector: RCA plug
The LVDS expansion board supports a stereo line input with jack J4 accepting the right channel input
and jack J3 accepting the left channel input. For further details, see Audio Interface, page 11.
J5: Line Out Left
Board connector: RCA jack, CUI RCJ-041
Mating connector: RCA plug
The LVDS expansion board provides a stereo line output with jack J5 supplying the left channel output
and jack J7 supplying the right channel output. For further details, see Audio Interface, page 11.
J6: S/PDIF Out
Board connector: 2-pin header, 0.1-inch, Samtec HMTSW-102-07-L-S-200
Mating connector: Samtec HCSS series socket
Header J6 provides an S/PDIF output. For further details, see Audio Interface, page 11.
Pin
Name
Type
Description
1
SPDIF
O
S/PDIF output
2
GND
P
Ground
Connectors and Indicators
15
J7: Line Out Right
Board connector: RCA jack, CUI RCJ-041
Mating connector: RCA plug
The LVDS expansion board provides a stereo line output with jack J7 supplying the right channel
output and jack J5 supplying the left channel output. For further details, see Audio Interface, page 11.
J8: Display 1: LVDS Display, Backlight, and Touch Panel
Board connector: 2x20 shrouded header, 1 mm, JST SM40B-SRDS-G-TF
Mating connector: housing, JST SHDR-40V-S-B and contact, JST SSH-003GA-P0.2
Header J8 provides a display interface including LVDS data, backlight control, and touch panel signals.
For further details, see Display Interface, page 10.
Pin
Name
Type
Description
1
GND
P
Ground
2
V5S_LCD
PO
Software-controlled 5 V (option for V9-36)
3
GND
P
Ground
4
V5S_LCD
PO
Software-controlled 5 V (option for V9-36)
5
DPSR
O
Scan select (default normal scan)
6
GND
P
Ground
7
NC
8
GND P Ground
9
GND
P
Ground
10
L_BKLTEN_OUT
O
Backlight power on/off, buffered
11
BLA_DATA0-
O
LVDS data 0, buffered
12
L_BKLTCTL_OUT
O
Backlight brightness control, filtered
13
BLA_DATA0+
O
LVDS data 0, buffered
14
GND
P
Ground
15
GND P Ground
16
BLA_DATA3-
O
LVDS data 3, buffered (option)
17
BLA_DATA1- O LVDS data 1, buffered
18
BLA_DATA3+
O
LVDS data 3, buffered (option)
19
BLA_DATA1+
O
LVDS data 1, buffered
20
GND
P
Ground
21
GND
P
Ground
22
NC
23
BLA_DATA2-
O
LVDS data 2, buffered
24
TC3
AIO
Touch panel
25
BLA_DATA2+
O
LVDS data 2, buffered
26
SX- AIO Touch panel
27
GND
P
Ground
28
SY- AIO Touch panel
29
BLA_CLK-
O
LVDS clock, buffered
30
SY+
AIO
Touch panel
31
BLA_CLK+
O
LVDS clock, buffered
32
SX+
AIO
Touch panel
33
GND
P
Ground
34
TC4
AIO
Touch panel
35
GND P Ground
36
TC2
AIO
Touch panel
37
V3.3S_LCD PO Software-controlled 3.3 V
38
TC1
AIO
Touch panel
39
V3.3S_LCD
PO
Software-controlled 3.3 V
40
TC0
AIO
Touch panel
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J9: Display 2: LVDS Display, Backlight, and Serial Port
Board connector: 26-pin D-Sub receptacle, Tyco 1761028-1
Mating connector: D-Sub plug
Connector J9 provides a display interface including LVDS data, backlight control, and an EIA-232
serial port. For further details, see Display Interface, page 10.
Pin
Name
Type
Description
1
GND
P
Ground
2
TS_TX_232 O Serial port transmit (option)
3
GND
P
Ground
4
BLA_CLK+
O LVDS clock, buffered
5
BLA_CLK-
6
BLA_DATA2+
O LVDS data 2, buffered
7
BLA_DATA2-
8
BLA_DATA1+
O LVDS data 1, buffered
9
BLA_DATA1-
10
BLA_DATA0+
O LVDS data 0, buffered
11
BLA_DATA0-
12
BLA_DATA3+
O LVDS data 3, buffered (option)
13
BLA_DATA3-
14
V9-36
PO 9 V (option for up to 36 V)
15
V9-36
16
V9-36
17
V9-36
18
L_BKLTSEL_OUT O Backlight selection, buffered
19
GND
P
Ground
20
TS_RX_232 I Serial port receive (option)
21
GND
P
Ground
22
L_BKLTCTL_OUT O Backlight brightness control, filtered
23
L_BKLTEN_OUT
O
Backlight power on/off, buffered
24
GND
P
Ground
25
FP_RESET
I
Reset
26
GND
P
Ground
System Specifications
17
System Specifications
Power
Power Supply
The LVDS expansion board accepts power from the Catalyst FX carrier board on header J1, page 14.
Symbol
Parameter
Min
Typ.
Max
Units
Input voltage
V3.3S
Normal operating power
3.135
3.3
3.465
V
V5S
Normal operating power
4.75
5.0
5.25
V
V9-36
Power input (note 1)
9
V
Notes:
1. A standard Catalyst FX carrier board supplies 9 V. Other configurations of the carrier
board can provide up to 36 V.
Electrical
This section provides electrical specifications for the LVDS expansion board.
Reset Input
Connector J9, page 16 accepts an optional reset input. This signal initiates a hardware reset including
the Intel
®
Atom
™
processor on the Catalyst Module.
Symbol
Parameter
Min
Typ.
Max
Units
Reset Input (FP_RESET)
V
FP_RESET
High-level input voltage (note 2)
3.3
V
Notes:
2. FP_RESET is pulled low on the LVDS expansion board.
LVDS Display
Header J8, page 15 and connector J9, page 16 provide signals to drive an LVDS display. These
signals include LVDS data, software-controlled display power, and display scan control. For further
details, see LVDS Display, page 10.
Symbol
Parameter
Min
Typ.
Max
Units
Display power (V3.3S_LCD)
V
V3.3S_LCD
Soft-start power
3.3
V
I
V3.3S_LCD
1 A
Scan direction (DPSR)
R
DPSR
Pull-up/down resistance (note 3)
10
kΩ
V
DPSR
0
3.3
V
Notes:
3. DSPR is pulled high by R79 for reverse scan, while R84 pulls the signal low for normal
scan. The default configuration is normal scan.
Touch Panel Controller
A Hampshire TSHARC USB controller and separate analog multiplexer drives resistive touch panels
on header J8, page 15. For further details, see Touch Panel, page 10.
Symbol
Parameter
Min
Typ.
Max
Units
VDD
Supply voltage
5.0
V
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Backlight
Header J8, page 15 and connector J9, page 16 provide software-controlled power and three control
signals to support a backlight inverter. For further details, see Backlight, page 10.
Symbol
Parameter
Min
Typ.
Max
Units
Backlight power (V5S_LCD)
V
V5S_LCD
Soft-start power (note 4)
5
V
I
V5S_LCD
1
A
Backlight control (BKLTEN, BKLTCTL, BKLTSEL)
V
BKLTEN
High-level output voltage (note 5)
5
V
V
BKLTCTL
High-level output voltage
5
V
V
BKLTSEL
High-level output voltage
3.3
V
Notes:
4. As a volume production option, the input power V9-36 can be provided on the
backlight power signal V5S_LCD.
5. Support for BKLTEN at V9-36 is available as a volume production option.
Audio Interface
An IDT 92HD71B8 4-channel HD audio codec provides the audio interface for the LVDS expansion
board. For further details, see Audio Interface, page 11.
Symbol
Parameter
Min
Typ.
Max
Units
D
VDD
Codec digital supply voltage
3.3
V
A
VDD
Codec analog supply voltage
3.3
V
f
S
Sample rate
192
kHz
---
A/D sample resolution 24 bit
Line In
V9-36
Full scale input voltage 1.00 1.03 V
rms
Gain
IN
Microphone boost
0
30
dB
R
IN
Input impedance
50
kΩ
C
IN
Input capacitance
15
pF
Line Out
V
OUT
Full scale output voltage, 10kΩ load
0.707
0.758
V
rms
General
This section provides general specifications for the LVDS expansion board.
Crystal Frequencies
Agencies certifying systems for compliance for radio-frequency emissions typically need to know the
frequencies of on-system oscillators. The following table lists the frequency of the crystal on the LVDS
expansion board.
Crystal
Device
Typ.
Units
X1
Touch Panel Controller
4.000
MHz
Environmental
The LVDS expansion board meets the environmental specifications listed in the following table.
Parameter
Specification
Commercial operating temperature
0°C to +70°C
Board Revision History
19
Board Revision History
This manual applies to the current revision of the LVDS expansion board as given in the following
sections.
Identifying the Board Revision
The revision number of the LVDS expansion board is printed on the printed wiring board (PWB). That
number is 170124-330Rx, where "x" is the revision level of the PWB.
Board Revision History
The following is an overview of the revisions to the LVDS expansion board.
Revision 1
Initial release
LVDS Expansion Board - User Manual
20
110124-33001
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Eurotech Catalyst FX is a display and audio subsystem that provides you with LVDS expansion capabilities. It enables you to connect your device to various display and audio interfaces, making it a versatile solution for a wide range of applications.
With Eurotech Catalyst FX, you can effortlessly connect to LVDS displays, touch panel controllers, and UART devices, giving you the flexibility to create custom user interfaces. Additionally, it features audio inputs and outputs, allowing you to seamlessly integrate audio into your system.
Here are some possible use cases for Eurotech Catalyst FX:
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