VERSION 1.6
J120 (38198-X)
J120
technical reference manual
38198-X
Version 1.6
Preliminary
November 2016
Auvidea GmbH
Kellerberg 3
D-86920 Denklingen
Tel: +49 8243 7714 622
info@auvidea.com
www.auvidea.com
AUVIDEA GMBH
TECHNICAL REFERENCE MANUAL
1
VERSION 1.6
J120 (38198-X)
Copyright Notice
Trademarks
NVIDIA, the NVIDIA logo, CUDA, Jetson, Maxwell,Tegra and VisionWorks are registered trademarks and/or
trademarks of NVIDIA Corporation in the United States and other countries. Other company and product names
may be trademarks of the respective companies with which they are associated.
© Auvidea GmbH 2016
All Rights Reserved
No part of this document or any of its contents may be reproduced, copied, modified or adapted, without the
prior written consent of the author, unless otherwise indicated for stand-alone materials.
You may share this document by any of the following means: this PDF file may be distributed freely, as long as
no changes or modifications to the document are made.
For any other mode of sharing, please contact the author at the email below. info@auvidea.com
Commercial use and distribution of the contents of this document is not allowed without express and prior
written consent of Auvidea GmbH.
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VERSION 1.6
J120 (38198-X)
Features
J120 carrier board for the NVIDIA® Jetson
™
TX1
The J120 carrier board is slightly larger than the TX1 compute module. It has the same height but it extends
out to to the left side, to make room for the USB3 and RJ45 connectors. It is plugged in below the TX1 and
brings out many interfaces on connectors.
Technical details
• carrier board for one NVIDIA® Jetson™ TX1 compute module
• standalone operation
• one 4 lane CSI-2 (22 pin FPC 0.5mm pitch) - B102
• micro SD card
• two USB3 type A
• RJ45 connector for 10/100/1000BT Ethernet
• UART 0 (3.3V TTL) (6 pin) - console access
• one I2S digital audio (6 pins each)
• fan connector (4 pin)
• mini HDMI out
• M.2 type M 2280 (not operational on J120 rev 1)
• size: 50 x 119 mm (size of the PCB)
• height: 16 mm (incl. TX1 without heatsink without height of bottom side components of J100)
• height: 21 mm (incl. TX1 without heatsink including height of bottom side components of J100)
• weight: 42 grams (just the J120)
• TX1 weight: 144 grams (TX1 with heatsink), 75 grams (TX1 w/o heatsink)
• mounting: 4 M3 holes with 3.2mm each (42 x 79 mm spacing - 4 mm from each edge)
• model: 38198 (J120 rev 1)
Power
• power: 12V typical (4 pin) - 2 power pins for redundant powering
• range: 7V to 17V
• do not use the 19V power supply of the Jetson TX1 dev kit - it will damage the J120 carrier board
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VERSION 1.6
J120 (38198-X)
How do the various models differ?
Feature
Jetson TX1 compatible
mini HDMI out
USB 3.0 type A
micro USB 3.0
micro USB 2.0 OTG
Wifi (2 antennas) on TX1 module
10/100/1000 Ethernet (RJ45)
IMU MPU-9250 (optional 9 axis sensor)
CAN controllers
M.2 type B (SATA - 2242)
M.2 type M (4x PCIe - 2280)
micro SD card
SPI/I2C
UART
CSI-2 (4 lanes)
CSI-2 (2 lanes)
I2S (digital audio)
fan connector
switches: power, reset, force recovery
size
power in
J100
✓
✓
-
2
-
✓
-
✓
-
-
-
✓
-
1
2
2
2
✓
-
50x87mm
dual 7 .. 17V
J100 + 38194
✓
✓
-
2
✓
✓
✓
✓
2 + (2)
✓
-
✓
-
2
2
2
2
✓
✓
98x87mm
dual 7..42V
J120
✓
✓
2
-
✓
✓
✓
✓
2
-
✓
✓
1/1
1
1
-
1
✓
✓
50x110mm
dual 7 .. 17V
J100 + 38194
The J100 is plugged into the 38194 modular motherboard. Three motherboard connectors carry signals for
CAN, Ethernet, UART, power, PCIe, SATA, SPI, I2C and more.
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VERSION 1.6
J120 (38198-X)
J120 Rev 1 (38198)
First revision of the J120. Very limited distribution.
J120 Rev 2 (38198-2)
Second revision of the J120. It became available in late April 2016. Modifications:
• all 3 connectors on the left are aligned (Ethernet, USB3 and mini HDMI)
• PCB size: 50 x 109.5 mm, total size: 50 x 110 mm
• M.2 type M fixed
• auto start recovery time shortened
• optional super cap for RTC
• firmware upgrade (back powering fix)
• INT lines of CAN controllers connect to individual pins of the TX1 (interrupts not shared)
J120 Rev 3 (38198-3)
• fixed USB2 power (flash recovery now supported)
• optional resistor to combine power to the 2 USB 3 ports
• added UART2 RXD/TXD to J7 (with components changes it could be reverted back to UART0 RTS/CTS)
• replaced 12V power in diodes with MOSFETs (for controlled inrush ramp up with Lipo batteries)
• four TX1 mount holes now connected to GND
• added LM75 temp sensor
• only one CAN bus and connector (CAN2) to overcome problem with SPI1_CS0 line - one CAN bus
supported with TX1 firmware provided by Auvidea
J120 Rev 4 (38198-4)
• changed I2C pullup resistors from 1k to 10k (to improve I2C signal low level)
J120 Rev 5 (38198-5)
• I2S connector: changed from I2S2 to I2S0 (for additional GPIOs)
• optional: 2 CAN busses (requires SW fix for SPI1_CS0)
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