Table 8. Connector Descriptions (Continued)
Connector
Description
REF IN
Currently unsupported. Input terminal for an external reference signal for the
sampling clock of the device. Use the PXI_100 backplane reference as a
reference input.
I+
Positive digital-to-analog
converter (DAC) output of
the I component.
Outputs are MMPX (f) connectors with 50 Ω
output impedance. Both I+/- and Q+/- components
are defined into a differential 100 Ω load with a
common mode voltage of 0 V. For single-ended
orientation, use the positive output while providing
50 Ω termination to the negative component. When
connecting to the PXIe-3620, connect MMPX (m)-
to-MMPX (m) cables to the corresponding TX
connectors.
I-
Negative DAC output of
the I component.
Q+
Positive DAC output of
the Q component.
Q-
Negative DAC output of
the Q component.
Table 9. LED Indicators
LED
Description
Color
State
Indication
ACCESS Indicates if the DAC within the
module is powered.
OFF
—
The DAC is not powered.
Green Solid
The DAC is powered and
ready for normal
operation.
ACTIVE Indicates the configuration status
of the module.
OFF
—
The DAC is not powered.
Yellow Blinking The module is being
configured.
Green Solid
The DAC is operating.
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mmWave Transceiver System Getting Started Guide