CN0388 Datasheet, PDF (4/5 Pages) Analog Devices – Devices Connected

CN-0388
Circuit Note
CIRCUIT EVALUATION AND TEST
Before starting evaluation, install the EVAL-AD7960FMCZ
evaluation software on a PC. Software installation instructions
can be found in the EVAL-AD7960FMCZ User Guide (UG-490).
To begin testing, ensure that the EVAL-AD7960FMCZ, EVAL-
CN0388-FMCZ, and EVAL-SDP-CH1Z boards are connected
correctly using their FMC connectors. This configuration is
shown in Figure 3. To power the EVAL-AD7960FMCZ, EVAL-
CN0388-FMCZ, and EVAL-SDP-CH1Z, connect a wall wart
power supply to the barrel connectors on the EVAL-CN0388-
FMCZ and EVAL-SDP-CH1Z. If the correct voltage levels have
been supplied, the +12V_FMC LED (EVAL-AD7960FMCZ),
the LED_1 and LED_2 LEDs (EVAL-CN0388-FMCZ), and the
FMC_PWR_GD LED (EVAL-SDP-CH1Z) are lit. Alternatively,
to test that the circuit is powered correctly, check the voltage
levels on the corresponding voltage test points on each board.
The labels on each of these test points must match their measured
values. On the EVAL-CN0388-FMCZ, there are three voltage
test points on each of the isolated and nonisolated sides;
+3_3V_SIDE1/SIDE2, +2_5V_SIDE1ADP1/SIDE2, and
+12V_IN/IN2. There are four voltage test points on the EVAL-
AD7960FMCZ: +7 V, +5 V, +12 V, and VREF.
A complete high speed analog to digital conversion can be
tested by connecting differential ac voltage sources through
VIN− and VIN+ via the SMA connectors ranging between
−VREF and +VREF (after the voltage sources). Acquisition data
from the differential input is sent by the EVAL-AD7960FMCZ
to the evaluation software installed on the PC. Refer to the
EVAL-AD7960FMCZ User Guide (UG-490) for hardware and
software operation. Figure 4 shows the Summary tab within the
EVAL-AD7960FMCZ evaluation software, which displays a
summary of the information gathered.
12V
WALL
WART
COAXIAL
CABLES
EVAL-AD7960FMCZ
EVAL-CN0388-FMCZ
+12V_VIN
SIGNAL
GENERATOR
J7
J4
J1
J4
SDP-H1
J1
USB
CABLE
J14
PC
12V
WALL
WART
Figure 3. Isolated Analog-to-Digital Data Acquisition Test Setup
Figure 4. EVAL-AD7960FMCZ Evaluation Software Window
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