Performing Data Streaming With An External Wideband Digitizer; Understanding Api For Peer-To-Peer Support - Keysight Technologies M9393A Programming Manual

Performing Data Streaming With an External Wideband Digitizer

Data streaming depends on wideband digitizer functionality being enabled in the
M9393A. When using M9202A Digitizer, for instance, all the programmatic control
for data streaming is done using the M9392A IVI interfaces once the M9393A is set
up. M9393A IVI interfaces do not implement data streaming in any way.

Understanding API for Peer-to-Peer Support

Peer-to-peer streaming enables M9393A to produce and transfer finite-length IQ
data directly from the M9214A Digitizer to another module that supports peer-to-
peer data transfer, such as the M9451A module, without involving the host
controller.
The peer-to-peer streaming is achieved using the PeerToPeerPort interface of the
M9393A IVI driver. Currently, M9393A supports a single port; however, in the
future, additional ports could be supported. For more information about this
interface, refer to the
The peer-to-peer feature is demonstrated in the Keysight RF PA/FEM
Characterization & Test, Reference Solution
M9381A VSG measurement hardware, along with the M9451A FPGA measurement
accelerator module to perform DPD computations. In this Reference Solution, the
peer-to-peer capability is utilized to perform the following two data transfers:
1. M9393A VSA to M9451 FPGA
2. M9451A FPGA to M9381A VSG
Using the peer-to-peer capability, the host controller is not used and hence, the
data transfer becomes faster.
65
option ExternalDigitizer is set to true in the
property acquires a value of true.
RF Frequency must be greater than 3.6 GHz to enable IF Filter Bypass. On a
50 GHz configuration enabled by option M9365A-FRX, RF Frequency must
be greater than or equal to 3.6 GHz. Double downconversion Image Protect
conversion type, which is not available above 3.6 GHz, cannot be set when
IF Filter Bypass is enabled.
IFFilterBypassFrequency: The center frequency in Hz of the downconverter's
IF output when IF filter bypass is enabled. This property can be set when the
option ExternalDigitizer is set to true in the
IFFilterBypassEnabled
MHz to 600 MHz. The default value is 500 MHz
Currently, the M9214A Digitizer does not support peer-to-peer transfer of
continuous gap-free data streams.
M9393A IVI documentation
Keysight M9393A PXIe Performance Vector Signal Analyzer
Initialize
Initialize
property is set to true. The valid range is 300
.
that uses PXIe M9393A VSA and PXIe
method this
method and the