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Tough Pico-ITX SBC packs 1.91GHz quad-core Atom E3800

Feb 25, 2015 — by Eric Brown 2,339 views

[Updated: June 16] — Congatec’s 100 x 70mm “Conga-PA3” Pico-ITX SBC runs Linux on an Atom E3800, and offers soldered RAM, dual mini-PCIe slots, and optional -40 to 85°C support.

Like Congatec’s Conga-IA3 Mini-ITX board announced last November, the Conga-PA3 runs Linux or Windows on Intel Atom E3800 system-on-chips. Like rival Kontron’s pITX-E38, it does so using the much smaller, 100 x 70mm Pico-ITX form factor.

(click image to enlarge)

The Conga-PA3 can operate at an optional -40 to 85°C industrial temperature range, and is designed for industrial applications in harsh, 24/7 operating environments such as passively cooled, enclosed automation and control systems, says Congatec. Other applications include decentralized, distributed intelligence, robotics, intelligent measurement and analysis devices, and IoT devices, says the company. Seven-year support is said to be available.

The default SoC choices include the 1.91GHz, quad-core Atom E3845, with 2MB L2 cache and a 10W TDP, and the 1.46GHz, dual-core Atom E3826 with 1MB cache and a 7W TDP. Other Bay Trail Atoms down to the single-core, 5W E3815 are also available on request.

Conga-PA3 detail view
(click image to enlarge)

There’s only half the RAM of the Kontron Pico-ITX board, with 4GB of DDR3L soldered down (in contrast to Kontron’s use of a SODIMM), but the two SBCs are otherwise fairly similar. Coastline ports are limited to a gigabit Ethernet port, dual USB 3.0 ports, and a DP++ port that supports DisplayPort and HDMI 1.4. There’s support for full HD video, as well as DirectX 11.1, OpenGL 3.2, and OpenCL 1.2.

Conga-PA3 coastline ports
(click image to enlarge)

Internally, you’ll find three USB 2.0 interfaces, one of which is a client port, as well as 24-bit, dual-channel LVDS connection. For storage, you get 6Gbps SATA, an mSATA slot shared with one of the two half-size mini-PCIe slots, as well as a microSD slot.

Conga-PA3 block diagram
(click image to enlarge)

Other features include internal audio I/O, S/PDIF out, and an RS-232 serial interface. The Conga-PA3 is further equipped with a 12V power supply, and a Congatec embedded controller that features LPC and I2C buses, GPIO, buttons, LEDs, a watchdog, non-volatile user storage, statistics, power loss control, and more (maybe even an RS232/485/422 header).


Specifications listed for the Conga-PA3 Pico-ITX board include:

  • Processor — Intel Atom E3800 (Bay Trail-I) @ 524MHz, 5-10W TDP, Intel HD Graphics:
    • Quad-core E3845 @ 1.91GHz (10W TDP)
    • Dual-core E3826 @ 1.46GHz (7W TDP)
  • Memory/storage:
    • 4GB soldered DDR3L-1600 RAM
    • SATA 6Gbps (no SATA power)
    • mSATA (half-size) connector shared with mini-PCIe
    • microSD slot
  • Display:
    • DisplayPort (coastline DP++ with HDMI 1.4 support) up to 1920 x 1200
    • 24-bit dual-channel LVDS (via eDP to LVDS converter PTN3460)
    • Dual independent display support
    • Backlight power connector
  • Networking — Gigabit Ethernet port
  • Other I/O:
    • 2x USB 3.0 coastline ports
    • 3x USB 2.0 (2x host, 1x client)
    • RS-232 serial interface
    • HD analog audio interfaces (line-out, mic-in)
    • S/PDIF out
    • Congatec embedded controller with LPC bus, I2C bus, GPIO, buttons, LEDs, watchdog, non-volatile user storage, statistics, power loss control, ACPI 5.0, etc.
  • Expansion — 2x half-size mini-PCIe slots (1x shared with mSATA)
  • Power — 12V DC supply; RTC battery (not support in industrial temp. version)
  • Operating temperature — -0 to 60°C; optional -40 to 85°C
  • Dimensions — 100 x 72mm (3.9 x 2.8 in.); Pico-ITX form-factor
  • Operating system — Linux; Windows 7/8/WES7/WES8

Further information

No pricing or availability information was provided for the Conga-PA3.
More information may be found in the Conga-PA3 product page.

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