Analog Devices EVAL-ADAQ4380-4 User Manual page 4

User Guide
EVALUATION BOARD HARDWARE
SETTING UP THE EVALUATION BOARD
Figure 2 shows the simplified evaluation board block diagram of
the EV-ADAQ4380-4FMCZ connected to the
board. The board consists of one μModule (U1, ADAQ4380-4),
on-board power supplies to derive the necessary supply rails using
the LT8362 (U2), and the ADP7142
buffer amplifiers is available when evaluating the ADAQ4380-4,
ADAQ4370-4, or ADAQ4381-4, where sensors require high input
impedance and/or further amplification is required.
SDP-H1 CONTROLLER BOARD
The EV-ADAQ4380-4FMCZ, EV-ADAQ4370-4FMCZ, and EV-
ADAQ4381-4FMCZ evaluation kits use a serial-port interface (SPI)
and require the system demonstration platform (SDP-H1) controller
board to capture the data through a graphic user interface (GUI),
see Figure 1. The SDP-H1 board requires power from a 12 V
wall adapter. The SDP-H1 has a Xilinx
BF527 processor with connectivity to the PC through a USB 2.0
high speed port. The controller boards allow the configuration and
capture of data on the daughter boards from the PC through a USB.
The SDP-H1 has an FMC low pin count (LPC) connector with full
differential LVDS and singled-ended low voltage CMOS support.
It also features the 120-pin connector that exposes the Blackfin
analog.com
EVAL-ADAQ4380-4/EVAL-ADAQ4370-4/
Figure 2. Simplified Evaluation Block Diagram
SDP-H1 controller
(U3). Provision for optional
®
Spartan 6 and an ADSP-
®
EVAL-ADAQ4381-4
processor peripherals. This connector provides a configurable seri-
2
al, parallel I C and SPI, and general-purpose input/output (GPIO)
communications lines to the attached daughter boards for the
functional description of the on-board power supplies.
POWER SUPPLIES
All necessary supply rails on the EV-ADAQ4380-4FMCZ, EV-
ADAQ4370-4FMCZ, and EV-ADAQ4381-4FMCZ are powered by
a 3.3 V rail coming from the SDP-H1 board. The evaluation boards
can be powered from an external 3.3 V supply applied using the
3V3 pin header. For an external 3.3 V supply configuration change
J1 header position, see Table
The board positive rails, 5 V (+VS), 3.45 V (VCC), and 3.45
V (VLOGIC), are generated from a combination of the on-board
power supplies, U2 (LT8362), U3 (ADP7142-5.0), and the internal
3.45 V low dropout (LDO) linear regulator. Decoupling capacitors
for the ADAQ4380-4, ADAQ4370-4, and ADAQ4381-4 supply pins
are integrated within the μModule, adding external capacitors are
not necessary. A single ground plane is used on this board to
minimize the effect of high frequency noise interference.
Table 1. On-Board Power Supplies
Power Supply (V) Function
+6.0 Supply rail from LT8362.
2.
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