User Guide
EVAL-ADIN1100
HARDWARE
analog.com
Rev. 0 | 5 of 11
POWER SUPPLIES
The EVAL-ADIN1100EBZ can be powered by a power supply with
an output voltage between 5 V dc and 32 V dc connected via the
plugin screw terminal connector, P1, or via the P2 barrel connector
plug.
Alternatively, the EVAL-ADIN1100EBZ board can be powered from
a host via its USB port, or by a USB charger connected to the micro
USB connector, P401.
The power supply source can be selected by inserting a link on
J1 (labeled BOARD PWR SELECTION). Inserting a link in Position
USB enables the EVAL-ADIN1100EBZ board to receive power from
the USB connector, P401. Inserting link in Position EXT+ enables
the EVAL-ADIN1100EBZ board to receive power from the P1 and
P2 connectors.
If both USB and EXT+ links are inserted on J1, a common cathode
diode pair selects the highest voltage input to supply the EVAL-
ADIN1100EBZ board.
The power from the source is converted by the
LT8619
step down
converter (U501) to 3.3 V, and with a link inserted in Position
J2 (PWR 3.3V), the 3.3 V rail supplies all circuits on the EVAL-
ADIN1100EBZ board. The presence of the 3.3 V power is indicated
by the green LED1 (labeled POWER).
The power consumption of the EVAL-ADIN1100EBZ board depends
on the mode of operation, with the maximum of approximately 0.5
W.
10BASE-T1L CABLE CONNECTION
The 10BASE-T1L cable can be connected via a pluggable screw
terminal block to Connector P101. If more of the pluggable con-
nectors are needed for easy connecting or changing of cables,
additional connectors can be purchased from vendors or distribu-
tors, such as: Phoenix Contact, Part Number 1803581, which is a
pluggable, 3-way, 3.81 mm, 28 AWG to 16 AWG, 1.5 mm
2
screw
terminal block.
GROUND CONNECTIONS
The EVAL-ADIN1100EBZ board has an Earth node. Although this
node may or may not be electrically connected to Earth ground, in
a real device, this node is typically connected to the device metal
housing or chassis. This Earth node can be connected as required
in a wider demonstration system via the Earth terminal of the power
supply connector, P1, or via an exposed metal plating of three
mounting holes in the corners of the EVAL-ADIN1100EBZ board.
(The fourth hole does not have metal plating, and has no Earth
connection.)
The shield of the 10BASE-T1L cable can be disconnected from this
Earth node, connected directly, or connected via a 4700 pF capaci-
tor (C104). The required connection is selected by the relevant link
position of J101.
The 10BASE-T Earth connection and metal body of the RJ45
connector (P5) are connected directly to the Earth node.
The local circuit ground, the external power supply (except the
Earth terminal, P1), and the USB connector are connected to
the Earth node via approximately 2000 pF of capacitance and
approximately 4.7 MΩ of resistance.
The EVAL-ADIN1100EBZ has been designed only as an evaluation
board. It has not been designed nor tested for electrical safety.
Any equipment, device, wire, or cable connected to this EVAL-
ADIN1100EBZ board must be already protected and safe to touch
without danger of electric shock.
HARDWARE CONFIGURATION SETUP
The EVAL-ADIN1100EBZ hardware configuration is determined by
links (jumpers) and configuration switches on the board. The de-
scriptions and the default hardware configurations of these links
and switches are outlined in
Table 2
,
Table 3
,
Table 4
,
Table 5
, and
Table 6
.
Table 2. EVAL-ADIN1100EBZ Board Link Configuration
Link Reference
Default Position
Link Function
J1
USB, EXT+
Board power supply source selection. Both USB and EXT+ can be inserted simultaneously.
J2
Inserted
Board 3.3 V power supply rail.
J3
Inserted
Board 1.8 V power supply rail.
J101
Earth
Shield. Connect the shield of the cable to the Earth node either directly or via a capacitor.
J203
LDO
ADIN1100
1.1 V power supply selection. LDO:sing the ADIN1100 on-chip internal 1.1 V linear regulator. EXT: supplied from
the 1.1 V output of the
LTC3547
step down regulator.
J204
3.3V
ADIN1100 3.3 V or 1.8 V power supply selection. If changing, keep the ADIN1100 VDDIO, ADIN1200 VDDIO, and
microcontroller wer (J402) all at the same voltage level, 3.3 V or 1.8 V.
J301
Not inserted
ADIN1200
reset. Insert to keep the ADIN1200 in hardware reset and release its digital signals.
J401
BRD
Microcontroller reset. BRD: microcontroller is reset by the S501 push-button (labeled RESET). GND: microcontroller is held
in reset.
J402
3.3V
Microcontroller power. Keep at the same level, 3.3 V or 1.8 V, as the ADIN1100 VDDIO and the ADIN1200 VDDIO.
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