Congatec conga-PA3 User manual

conga-PA3 Pico-ITX SBC
Detailed Description Of The congatec Pico-ITX Based On 3rd Generation Intel Atom
User's Guide
Revision 0.1 (Preliminary)

Copyright © 2015 congatec AG PA3Cm01 2/44
Revision History
Revision Date (yyyy.mm.dd) Author Changes
0.1 2015.10.30 AEM •Preliminary release

Copyright © 2015 congatec AG PA3Cm01 3/44
Preface
This user's guide provides information about the components, features and connectors available on the conga-PA3 Pico-ITX Single Board
Computer.
Disclaimer
The information contained within this user’s guide, including but not limited to any product specification, is subject to change without notice.
congatec AG provides no warranty with regard to this user’s guide or any other information contained herein and hereby expressly disclaims
any implied warranties of merchantability or fitness for any particular purpose with regard to any of the foregoing. congatec AG assumes
no liability for any damages incurred directly or indirectly from any technical or typographical errors or omissions contained herein or for
discrepancies between the product and the user’s guide. In no event shall congatec AG be liable for any incidental, consequential, special, or
exemplary damages, whether based on tort, contract or otherwise, arising out of or in connection with this user’s guide or any other information
contained herein or the use thereof.
Intended Audience
This user's guide is intended for technically qualified personnel. It is not intended for general audiences.
Lead-Free Designs (RoHS)
All congatec AG products are created from lead-free components and are completely RoHS compliant.
Electrostatic Sensitive Device
All electronic parts described in this user’s guide are electrostatic sensitive devices and are packaged accordingly. Do not open or handle a
carrier board or module except at an electrostatic-free workstation. Additionally, do not ship or store electronic devices near strong electrostatic,
electromagnetic, magnetic, or radioactive fields unless the device is contained within its original manufacturer’s packaging.

Copyright © 2015 congatec AG PA3Cm01 4/44
Symbols
The following symbols are used in this user's guide:
Warning
Warnings indicate conditions that, if not observed, can cause personal injury.
Caution
Cautions warn the user about how to prevent damage to hardware or loss of data.
Note
Notes call attention to important information that should be observed.
Connector Type
Describes the connector used on the Single Board Computer.
Copyright Notice
Copyright © 2015, congatec AG. All rights reserved. All text, pictures and graphics are protected by copyrights. No copying is permitted
without written permission from congatec AG.
congatec AG has made every attempt to ensure that the information in this document is accurate yet the information contained within is
supplied “as-is”.

Copyright © 2015 congatec AG PA3Cm01 5/44
Trademarks
Product names, logos, brands, and other trademarks featured or referred to within this user’s guide, or the congatec website, are the property
of their respective trademark holders. These trademark holders are not affiliated with congatec AG, our products, or our website.
Warranty
congatec AG makes no representation, warranty or guaranty, express or implied regarding the products except its standard form of limited
warranty (“Limited Warranty”) per the terms and conditions of the congatec entity, which the product is delivered from. These terms and
conditions can be downloaded from www.congatec.com. congatec AG may in its sole discretion modify its Limited Warranty at any time and
from time to time.
The products may include software. Use of the software is subject to the terms and conditions set out in the respective owner’s license
agreements, which are available at www.congatec.com and/or upon request.
Beginning on the date of shipment to its direct customer and continuing for the published warranty period, congatec AG represents that the
products are new and warrants that each product failing to function properly under normal use, due to a defect in materials or workmanship or
due to non conformance to the agreed upon specifications, will be repaired or exchanged, at congatec’s option and expense.
Customer will obtain a Return Material Authorization (“RMA”) number from congatec AG prior to returning the non conforming product freight
prepaid. congatec AG will pay for transporting the repaired or exchanged product to the customer.
Repaired, replaced or exchanged product will be warranted for the repair warranty period in effect as of the date the repaired, exchanged
or replaced product is shipped by congatec, or the remainder of the original warranty, whichever is longer. This Limited Warranty extends to
congatec’s direct customer only and is not assignable or transferable.
Except as set forth in writing in the Limited Warranty, congatec makes no performance representations, warranties, or guarantees, either
express or implied, oral or written, with respect to the products, including without limitation any implied warranty (a) of merchantability, (b) of
fitness for a particular purpose, or (c) arising from course of performance, course of dealing, or usage of trade.
congatec AG shall in no event be liable to the end user for collateral or consequential damages of any kind. congatec shall not otherwise be
liable for loss, damage or expense directly or indirectly arising from the use of the product or from any other cause. The sole and exclusive
remedy against congatec, whether a claim sound in contract, warranty, tort or any other legal theory, shall be repair or replacement of the
product only.
Certification
congatec AG is certified to DIN EN ISO 9001 standard.
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Copyright © 2015 congatec AG PA3Cm01 6/44
Technical Support
congatec AG technicians and engineers are committed to providing the best possible technical support for our customers so that our products
can be easily used and implemented. We request that you first visit our website at www.congatec.com for the latest documentation, utilities
and drivers, which have been made available to assist you. If you still require assistance after visiting our website then contact our technical
support department by email at [email protected]
Terminology
Term Description
PCI Express (PCIe) Peripheral Component Interface Express – next-generation high speed Serialized I/O bus
cBC congatec Board Controller
PCI Express Mini Card PCI Express Mini Card add-in card is a small size unique form factor optimized for mobile computing platforms.
SDIO card SDIO (Secure Digital Input Output) is a non-volatile memory card format developed for use in portable devices.
USB Universal Serial Bus
SATA Serial AT Attachment: serial-interface standard for hard disks
HDA High Definition Audio
S/PDIF S/PDIF (Sony/Philips Digital Interconnect Format) specifies a Data Link Layer protocol and choice of Physical Layer specifications for carrying
digital audio signals between devices and stereo components.
HDMI High Definition Multimedia Interface. Supports standard, enhanced, or high-definition video, plus multi-channel digital audio on a single cable.
TMDS Transition Minimized Differential Signaling. TMDS is a signaling interface defined by Silicon Image that is used for DVI and HDMI.
DVI Digital Visual Interface is a video interface standard developed by the Digital Display Working Group (DDWG).
LPC Low Pin-Count: a low speed interface used for peripheral circuits such as Super I/O controllers, which typically combine legacy device support into
a single IC.
I²C Bus Inter-Integrated Circuit Bus: is a simple two-wire bus with a software-defined protocol that was developed to provide the communications link
between integrated circuits in a system.
SM Bus System Management Bus: is a popular derivative of the I²C-bus.
CAN Controller Area Network
SPI Serial Peripheral Interface
GbE Gigabit Ethernet
LVDS Low-Voltage Differential Signaling
DDC Display Data Channel is an I²C bus interface between a display and a graphics adapter.
PN Part Number - the part number for placing orders.
N.C Not connected
N.A Not available
T.B.D To be determined

Copyright © 2015 congatec AG PA3Cm01 7/44
Contents
1 Introduction ............................................................................... 8
1.1 Pico-ITX Concept....................................................................... 8
1.2 conga-PA3.................................................................................. 8
1.2.1 Options Information................................................................... 9
1.2.2 Optional Accessories/Cables................................................... 10
2 Specification ............................................................................ 11
2.1 Feature List .............................................................................. 11
2.2 Supported Operating Systems ................................................ 12
2.3 Mechanical Dimensions ........................................................... 12
2.4 Environmental Specifications................................................... 12
3 Block Diagram.......................................................................... 13
4 Cooling Solution ...................................................................... 14
4.1 CSP Dimension ........................................................................ 15
4.2 Heatspreader Dimension ......................................................... 16
5 Connector Description............................................................. 17
5.1 Power Supply ........................................................................... 17
5.1.1 DC Power Jack (Rear I/O) ........................................................ 17
5.1.2 Power Supply (Internal Connector) .......................................... 18
5.1.3 Power Status LED..................................................................... 18
5.2 RTC Battery.............................................................................. 19
5.3 Audio Interface ........................................................................ 20
5.4 Universal Serial Bus (USB) ........................................................ 21
5.4.1 Rear USB Connectors............................................................... 21
5.4.2 Internal USB Connectors.......................................................... 22
5.5 Ethernet 10/100/1000.............................................................. 23
5.6 SATA Interfaces........................................................................ 24
5.6.1 Standard SATA Port ................................................................. 24
5.6.2 Mini SATA (shared with mini PCIe)........................................... 24
5.7 Display Interfaces..................................................................... 25
5.7.1 Display Port Interface DP++ .................................................... 25
5.7.2 LVDS......................................................................................... 26
5.7.2.1 Backlight Power Connector ..................................................... 27
5.7.2.2 Panel Power Selection ............................................................. 27
5.8 Serial Ports (COM) ................................................................... 28
5.9 MIPI-CSI 2.0 (Camera).............................................................. 29
5.10 PCI Express ............................................................................. 30
5.10.1 Mini PCIe (Half Size) ................................................................ 30
5.10.2 Mini PCIe (shared with mini SATA)........................................... 32
5.10.3 PCI Express Routing................................................................. 33
6 Additional Features.................................................................. 34
6.1 Feature Connectors ................................................................. 34
6.1.1 Buttons & LEDs ........................................................................ 34
6.1.2 GPIOs....................................................................................... 35
6.1.3 I2C and Watchdog................................................................... 35
6.2 congatec Board Controller (cBC) ............................................. 36
6.2.1 Fan Control .............................................................................. 36
6.2.2 Power Loss Control.................................................................. 37
6.2.3 Board Information.................................................................... 37
6.2.4 CPU Fan Connector ................................................................. 37
6.3 OEM BIOS Customization........................................................ 37
6.3.1 OEM Default Settings .............................................................. 38
6.3.2 OEM Boot Logo....................................................................... 38
6.3.3 OEM POST Logo ..................................................................... 38
6.3.4 OEM BIOS Code/Data............................................................. 38
6.3.5 OEM DXE Driver...................................................................... 39
6.4 congatec Battery Management Interface ................................ 39
6.5 API Support (CGOS) ................................................................ 39
6.6 GPIOs....................................................................................... 40
6.7 Thermal/Voltage Monitoring.................................................... 40
6.8 External System Wake Event ................................................... 40
7 conga-PA3 Mechanical Drawing .............................................. 41
8 conga-PA3 BIOS Setup Description......................................... 42
9 Additional BIOS Features ........................................................ 43
10 Industry Specifications ............................................................. 44

Copyright © 2015 congatec AG PA3Cm01 8/44
1 Introduction
1.1 Pico-ITX Concept
The Pico-ITX form factor provides system designers and manufacturers with a standardized ultra compact platform for development. With a
footprint of 100mm x72mm, this scalable platform promotes the design of highly integrated, energy efficient systems. Due to its small size,
the Pico-ITX form factor enables PC appliance designers not only to design attractive low cost devices but also allows them to explore a huge
variety of product development options - from compact space-saving designs to fully functional Information Station and Value PC systems.
This helps to reduce product design cycle and encourages rapid innovation in system design, to meet the ever-changing needs of the market.
Additionally, the boards can be passively cooled, presenting opportunities for fanless designs. The Pico-ITX boards are equipped with various
interfaces such as PCI Express, SATA, USB 2.0/3.0, Ethernet, Displays and Audio.
1.2 conga-PA3
The conga-PA3 is a Single Board Computer designed based on the Pico-ITX specification. The conga-PA3 SBC features the Intel 3rd
generation Atom processors. With maximum 10W TDP processors, the SBC offers Ultra Low Power boards with high computing performance
and outstanding graphics. Additionally, the SBC supports onboard single channel DDR3L up to 1333 MT/s, maximum system memory capacity
of 4 GB, multiple I/O interfaces, up to two independent displays and various congatec embedded features.
With smaller board size and lower height keep-out zones, the conga-PA3 SBC provides manufacturers and system designers with the opportunity
to design compact systems for space restricted areas.
The various features and capabilities offered by the conga-PA3 makes it ideal for the design of compact, energy efficient, performance-
oriented embedded systems.

Copyright © 2015 congatec AG PA3Cm01 9/44
1.2.1 Options Information
The conga-PA3 is currently available in four variants (two commercial and two industrial). This user’s guide describes all of these variants. The
tables below show the different configurations available. Check for the Part No. that applies to your product. This will tell you what options
described in this user’s guide are available on your particular module.
conga-PA3 Commercial Variants
Part-No. 047700 047701
Processor Intel®Atom™ E3845
1.91 GHz Quad Core™
Intel®Atom™ E3826
1.46 GHz Dual Core™
L2 Cache 2 MByte 1 MByte
Burst Frequency N/A N/A
Onboard Memory 4GB DDRL-1333 MT/s
single channel
2GB DDRL-1066 MT/s
single channel
Processor Graphics Intel®HD Graphics (GT1) Intel®HD Graphics (GT1)
Graphics Base/Burst Freq. 542 / 792 MHz 533 / 667 MHz
LVDS Single/Dual 18/24bit Single/Dual 18/24bit
DDI DisplayPort++ DisplayPort++
Processor TDP (Max) 10 W 7 W
conga-PA3 Industrial Variants
Part-No. 047720 047721
Processor Intel®Atom™ E3845
1.91 GHz Quad Core™
Intel®Atom™ E3826
1.46 GHz Dual Core™
L2 Cache 2 MByte 1 MByte
Burst Frequency N/A N/A
Onboard Memory 4GB DDRL-1333 MT/s
single channel
2GB DDRL-1066 MT/s
single channel
Processor Graphics Intel®HD Graphics (GT1) Intel®HD Graphics (GT1)
Graphics Base/Burst Freq. 542 / 792 MHz 533 / 667 MHz
LVDS N/A N/A
DDI DisplayPort++ DisplayPort++
Processor TDP (Max) 10 W 7 W

Copyright © 2015 congatec AG PA3Cm01 10/44
1.2.2 Optional Accessories/Cables
Accessories Part No. Description
conga-PA3/HSP-B 047750 Standard conga-PA3 heatspreader with 2.7mm bore hole stand-offs.
conga-PA3/HSP-T 047751 Standard conga-PA3 heatspreader with threaded stand-offs.
conga-PA3/CSP-B 047752 Standard conga-PA3 passive cooling solution with cooling fins and 2.7mm bore hore.
Cables Part No. Description
KAB-LCD-Backlight 14000130 50cm backlight cable with JST PHR-5 connector on one end and dual connectors (JST LPCP-04 and
Molex PanelMate) on the other end. Backlight cable from conga-PA3 to LCD panel (+12V LCD).
USB Client Cable Adapter 14000160 30cm USB 2.0 cable with USB. 2.0 Type B connector and 1.25mm Pitch PicoBlade female connector.
Feature Cable 14000161 15cm, 1.27mm pitch spacing ribbon cable with Molex 51021-0800 connector on one end.
Cable Kit for Commercial Variants 14000162 Cable kit for conga-PA3 commercial variants.
Dual USB-A cable 14000038 20cm dual Type A USB 2.0 shielded high speed cable.
PA30 Audio Cable Adapter 14000146 15cm audio cable adapter.
PA30 Buttons and LEDs Cable 14000147 15cm buttons and LEDs cable.
PA30 Buttons and LEDs Cable Long 14000148 100cm buttons and LEDs cable.
PA30 GPIO Cable 14000151 15cm GPIO cable with open end.
PA30 RS232 Cable Adapter 14000152 15cm RS232 cable adapter (DSUB9 male).
PA30 Power Cable 14000157 Power cable with 4mm banana plugs.
USB Client Cable Adapter 14000160 30cm USB client cable adapter.
PA3C Feature Cable 14000161 15cm feature cable with open end.
LCD Set 14000166 LCD cable set. Comprises of LCD display cable, LVDS data cable and LCD backlight power cable.
LVDS Data Cable 14000167 50cm LVDS data cable with JAE FI-X30HL 30 pos connector and Hirose DF13-40DS-1.25C 40 pos
connector. Compatible with LCD panel AUO Gq70EG01 V.1
Power Cable for Industrial Variants 14000172 15cm Power cable for the internal power connector of industrial variants.
Cable Kit for Industrial Variants 14000173 Cable kit for conga-PA3 industrial variants.

Copyright © 2015 congatec AG PA3Cm01 11/44
2 Specification
2.1 Feature List
Table 1 Feature Summary
Form Factor Based on Pico-ITX form factor (100 x 72 mm).
Processor Intel®3rd Generation Atom SoC.
Memory Single channel non-ECC DDR3L onboard memory with up to 4GB capacity and up to 1333 MT/s.
cBC Multi-stage watchdog, manufacturing and board information, board statistics, I2C bus, Power loss control.
Chipset Integrated in the SoC.
Audio Realtek ALC888S-VD High Definition Audio codec.
Ethernet 1x Gigabit Ethernet support via the onboard Intel®I211 (industrial variants have Intel®I210 controller).
Graphics Intel®HD Graphics with support for DirectX11, OpenGL 3.0, OpenCL 1.2, OpenGLES 2.0, full HW acceleration for decode/encode of MPEG2, H.264,
MVC and dual simultaneous displays.
Graphic Interfaces 1x DD1 (DisplayPort++) and 1x LVDS
Back Panel I/O
Connectors
1x DisplayPort ++ (DP++).
-Supports DP/DVI/HDMI (HDMI 1.4 or DVI possible via an external
passive cable adapter)
1x Gigabit Ethernet (without AMT)
2x USB 3.0
1x DC-IN (+12V)
Onboard I/O
Connectors
1x LVDS
1x Backlight
1x Serial Port connector (bottom side).
NOTE: The serial port on rev. B.x and later supports multi-protocol.
1 x MicroSD slot (bottom side)
2x SATA interfaces
-1x Standard SATA II (3.0 Gb/s).
-1x mini SATA II (shared with mini PCIe Slot)
PCI Express interfaces
-1x Half size mini PCIe Slot
-1x Half size mini PCIe Slot (shared with mSATA)
1x MIPI-CSI 2.0 connector (revision A.x and later)
1x LINE OUT/SPDIF OUT/MIC connector (analog and digital audio)
1x Internal Power-IN (+12V)
1x RTC battery connector
1x Fan connector
3x Internal USB connectors
-1x USB Client
-2x USB 2.0
3x Feature connectors
-1x GPIO connector (offers 4 GPIs and 4 GPOs via cBC)
-1x I2C/Watchdog connector (via cBC)
-1x Connector for power, reset, sleep and LID buttons, as well as
power and SATA LEDs.
Other Features Thermal and voltage monitoring
RTC Battery
congatec standard BIOS
BIOS AMI Aptio®UEFI 5.x firmware, 64MB SPI flash with congatec embedded BIOS features.
Power
Management
ACPI 4.0 compliant with battery support. Also supports Suspend to RAM (S3).
Ultra low standby power consumption.

Copyright © 2015 congatec AG PA3Cm01 12/44
Note
Some of the features mentioned in the above feature summary are optional. Check the article number of your module and compare it to the
options information list on page 9 of this user’s guide to determine what options are available on your particular module.
2.2 Supported Operating Systems
The conga-PA3 supports the following operating systems.
•Microsoft®Windows® 10
•Microsoft®Windows® 7/8
•Microsoft®Windows®7/8 Embedded Standard
•Windows Embedded Compact 7/2013 (WEC7/WEC2013)
•Linux
2.3 Mechanical Dimensions
•100mm x 72mm
•17mm height
2.4 Environmental Specifications
Temperature Operation: 0° to 60°C (commercial variants) Storage: -20° to +80°C
Operation: -40° to 85°C (industrial variants) Storage: -40° to +85°C
Humidity Operation: 10% to 90% Storage: 5% to 95%
Caution
The above operating temperatures must be strictly adhered to at all times.

Copyright © 2015 congatec AG PA3Cm01 13/44
3 Block Diagram
*
1
The mSATA/mPCIe connector supports both mPCIe
and mSATA devices. The devices are detected automatically.
*
2
Industrial variants are equipped with Intel i210 controller.
*
3
Revision B.x and later are equipped with a multiprotocol transceiver.
LPC
HDA
HD Audio
ALC888S-VD
congatec
Board Controller
2x USB 2.0
Line Out
(4x GPIOs)
Over-voltage & ESD
Protection
MUX
External I/O
Power IN
(DC Power Jack)
Internal I/O
SPI Flash
RS232
Transceiver *3
mSATA/mPCIe *1
mPCIe (half-size)
SATA0
PCIe2
Intel i211 *2
USB 3.0 Hub
ULPI Transceiver
eDP to LVDS
Bridge
Ethernet
DP++
MIC
USB1,2
1x USB Client
USB ULPI
SPI
SDIO
LVDS
DDI1
DDI0
2x24 bit
LVDS
USB0
SuperSpeed
SATA0
SATA1
PCIe1
PCIe0
USB3
2x USB3.0
Single Channel
Micro SD Card
MIPI-CSI
MIPI-CSI 2.0
UART
Serial Port *3
Feature Connectors
Power IN
(2-Pin Connector)
+3.3V Battery
SPDIF Out
Intel Bay Trail SoC
Memory Controller
Tri-gate 3D 22nm Single/Dual/Quad Core
1MB L2 Cache Shared By 2 Cores
64 Architecture
SSE4.2 AES-NI Thermal Mgmt.
Virtualization (VT-x)
3D
Multimedia Features
DisplayPort 1.2
Single Channel Low Power
HDMI 1.4 (3D, 4k)
embedded DP
Display Interfaces
COMPUTE UNIT
SoC TRANSACTION ROUTER
OCL 1.2
MPEG-2 OpenCL 1.2
H.264 OpenGL 3.0
WMV9 OpenGLES 2.0
MJPEG DirectX 11
INTEGRATED I/O
SATA
High Definition Audio
USB 2.0
LPC BusPCIe
I/O Interfaces
GPIOs
USB 3.0
(I2C/Watchdog)
(Buttons/LEDs)
3-wire
CPU FAN
Backlight
Onboard DDR3L
Memory

Copyright © 2015 congatec AG PA3Cm01 14/44
4 Cooling Solution
The conga-PA3 SBC offers Ultra Low Power boards with high computing performance and outstanding graphics. Due to its low power
consumption, the SBC generates less heat and therefore requires less active cooling, allowing the use of quieter, lower profile coolers that are
better suited to small form factor systems.
Nonetheless, all electronics contain semiconductor devices which have operating temperature ranges that should be adhered to. This means
that for reliable operation, the thermal design of the conga-PA3 must be carefully considered. For this reason, it is imperative to provide
sufficient air flow to each of the components, to ensure the specified operating temperature of the conga-PA3 is maintained.
congatec AG offers two cooling solutions for the conga-PA3:
•A congatec passive cooling solution (CSP).
•A congatec heatspreader. The heatspreader features a Gap Pad, heatstack and a Hi-Flow 225UT pressure sensitive, phase change thermal
interface.
Note
You can also use a custom cooling solution for the conga-PA3. When a passive cooling is used, the end user must ensure that adequate air
flow is maintained.
See section 1.2.2 “Optional Accessories/Cables” for the part numbers of the cooling accessories. For the dimensions of the CSP and
heatspreader, see sections 4.1 and 4.2.
Caution
The congatec heatspreader is only suitable for use within commercial temperature ranges (0oC to 60oC) . It is not designed to be used within
industrial temperature ranges (-40oC to 85oC). When using a heatspreader with conga-PA3 commercial grade variants, the maximum operating
temperature refers to any measurable spot on the heatspreader’s surface.
Passive Cooling Solution Heatspreader

Copyright © 2015 congatec AG PA3Cm01 15/44
congatec AG strongly recommends that you use the appropriate congatec heatspreader on the conga-PA3 and within operating temperatures
of 0oC to 60oC. If you use heatspreaders that are not specified for the conga-PA3 or use the conga-PA3 industrial variants, then it is your
responsibility to ensure that all components found on the module operate within the component manufacturer’s specified temperature range.
Humidity specifications are for non-condensing conditions.
4.1 CSP Dimension
Note
All measurements are in millimeters. Torque specification for the screws is 0.6 Nm. Mechanical system assembly mounting shall follow the
valid DIN/IS0 specifications.

Copyright © 2015 congatec AG PA3Cm01 16/44
4.2 Heatspreader Dimension
Note
All measurements are in millimeters. Torque specification for the screws is 0.6 Nm. Mechanical system assembly mounting shall follow the
valid DIN/IS0 specifications.
Caution
When using the heatspreader in a high shock and/or vibration environment, congatec recommends the use of a thread-locking fluid on the
cooling solution screws to ensure the above mentioned torque specification is maintained.
0
1,97
30,2
30,65
(69,35)
(97)
100 0,5
0
3 0,2
36
(69)
72 0,5
66 0,2
38,7 0,2
94 0,2
26
31 7
50
41 13
4
15
1,5
6°
6°
33
2°
1,5
R0,5
R0,3
R0,5
R0,3
R0,5
R0,3
1,5
34,5
R1,53
5,6
90°
2°
3,2
2°
3,5
3,5
2,7Ø
Ø
Ø
50,1
Ra 1,6
0,15
3,2 0,05 3,2 0,05
±
±
±±
±
±
±
±
±
±

Copyright © 2015 congatec AG PA3Cm01 17/44
5 Connector Description
5.1 Power Supply
You can power the conga-PA3 SBC with a 12V, 5.5x2.5mm laptop type DC power supply (on connector X42) or with a 2 pin power supply (on
connector X41).
Note
The supplied voltages must be within a tolerance of ± 10%. The conga-PA3 may not function if you exceed this tolerance limit.
5.1.1 DC Power Jack (Rear I/O)
The conga-PA3 SBC can be powered from a laptop type power supply connected to the DC power jack on the rear I/O. This power input offers
over-voltage and ESD protection.
Connector X42 Pinout Description
Pin Function
Center Pin +12V
Sleeve/Barrel GND
Connector Type
X42 : DC Power Jack, 5.5x2.5mm Diameter
Note
The conga-PA3 industrial variants do not have DC power jack (connector X42). They are equipped with internal power connector (X41) only.
Caution
The absolute maximum rating of the input voltage is 13.2 volts. Do not exceed this rating or expose the conga-PA3 to the absolute maximum
voltage for a prolonged time. The system may not function, may be damaged or may have reliability issues if you do not observe this warning
information.
DC Power Jack - Connector X42

Copyright © 2015 congatec AG PA3Cm01 18/44
5.1.2 Power Supply (Internal Connector)
The conga-PA3 offers an internal 2-pin power connector. This connector makes it possible to use customized power supply cables/connector
and also offers over voltage protection to the input voltage.
Connector X41 Pinout Description
Pin Signal Description
1 +12V Power Supply +12V
2 GND Ground
Connector Type
X41: 2 Pos, 3mm Pitch Micro-Fit Internal Power Connector.
Mating Connector: Possible mating connector for X41 is the Molex 43645-0200.
Note
For conga-PA3 commercial variants, you can use connector X41 as a +12V power output if the system is powered via the DC jack. The
industrial variants have only connector X41 for power input.
Caution
The absolute maximum rating of the input voltage is 13.2 volts. Do not exceed this rating or expose the conga-PA3 to the absolute maximum
voltage for a prolonged time. The system may not function, may be damaged or may have reliability issues if you do not observe this warning
information.
5.1.3 Power Status LED
The conga-PA3 provides an LED signal (PWR_LED) on pin 9 of the feature connector X13. The signal indicates the different power states of the
conga-PA3. Possible states of the LEDs are shown below:
Single-Color Power LED
LED State Description ACPI State
Off Sleeping or power-off (not running) S3, S5
LED on Running S0
Internal Power Connector X41
1
2

Copyright © 2015 congatec AG PA3Cm01 19/44
Note
For the feature connector pinout description, see section 6.1 “Feature Connectors”.
5.2 RTC Battery
The conga-PA3 provides an RTC battery on connector X10. The battery monitors and maintains the system clock. The specified battery type is
CR2032.
Battery Connector X10
Pin Description
1 +3V
2 GND
Note
The CR2032 battery has an adhesive tape on its shrinking tube. This tape enables the system integrator to adequately position the battery in
the system case.
This battery is not provided for industrial variants. Therefore, the customer should provide suitable RTC battery solution for conga-PA3
industrial variants.
Warning
Danger of explosion if battery is incorrectly replaced. Replace only with same or equivalent type recommended by the manufacturer. Dispose
of used batteries according to the manufacturer’s instructions.
Connector Type
X10: 2x1, 1.25mm PicoBlade Header
Mating Connector: Possible mating connector for X10 is the Molex 51021-0200.
RTC Battery Connector X10
CR2032 Battery with cable and connector

Copyright © 2015 congatec AG PA3Cm01 20/44
5.3 Audio Interface
The conga-PA3 has a high definition audio codec (Realtek ALC888S-VD2) mounted on it. The audio codec's S/PDIF output, analog line (left
and right) and microphone input channels (left and right) are routed to connector X5. This connector offers +5V power supply pins for external
speaker amplifier and optical S/PDIF transmitter.
The audio fuse limits the power budget of this pin by 750mA hold current (maximum wattage recommended is 3W).
Audio Interface (Connector X5) Pinout Description
Pin Signal Description
1 MIC_L Analog Microphone Input - Left Channel
2 GND_HDA Audio Ground
3 MIC_R Analog Microphone Input - Right Channel
4 +5V AMP +5V Power Supply (for external speaker amplifier)
5 MIC_JD Microphone Jack Detection
6 LINE_R Analog Line Out - Right Channel
7 GND_HDA Audio Ground
8 LINE_L Analog Line Out - Left Channel
9 LINE_JD Line Out Jack Detection
10 +5V +5V Power Supply (for S/PDIF optical transmitter)
11 GND Digital Ground for S/PDIF
12 S/PDIF S/PDIF Output (3.3V)
Note
The audio codec is only available on commercial variants. The drivers for the codec can be found on the congatec website at www.congatec.com.
Connector Type
X5: 2x6 Pos, 2.0 mm Header
Mating Connector: Possible mating connector for X5 is Molex 51110-1250.
Line, Mic and SPDIF - Connector X5
Pin 12
Pin 1
Pin 2