Table 3. PXIe-5606 RF Downconverter Front Panel Connectors (Continued)
Connector
Use
LO1 OUT
Output terminal for the LO1 (3.2 GHz to 8.3 GHz) source. In multichannel
systems, LO1 OUT exports the signal received at LO1 IN to other
PXIe-5606 modules. LO1 OUT is disabled by default. LO1 OUT is an
SMA connector with an impedance of 50 Ω (nominal).
LO2 OUT
Output terminal for the LO2 (4 GHz) source. In multichannel systems,
LO2 OUT exports the signal received at LO2 IN to other PXIe-5606
modules. LO2 OUT is disabled by default. LO2 OUT is an SMA
connector with an impedance of 50 Ω (nominal).
Note
When part of a PXIe-5668, LO2 OUT is disabled except
when connected to the PXIe-5624 CLK IN.
LO3 OUT
Output terminal for the LO3 (800 MHz) source. In multichannel systems,
LO3 OUT exports the signal received at LO3 IN to other PXIe-5606
modules. LO3 OUT is disabled by default. LO3 OUT is an SMA
connector with an impedance of 50 Ω (nominal).
IF IN / BIAS
OUT
Connector for IF input and current source for biasing external mixers.
NOISE
SOURCE
HD BNC connector for enabling noise source on/off.
Note
LO1 OUT, LO2 OUT, and LO3 OUT enable phase-coherent operation of
multiple devices by allowing you to use common LO signals when daisy-chaining
the signals to other RF downconverter modules. When you are not using the LO1
OUT and LO3 OUT connectors, connect a 50 Ω load to each of these connectors.
PXIe-5668 Getting Started Guide
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© National Instruments
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