ni-rfsg-c-api-ref-doc

NIRFSG_ATTR_IQ_OUT_PORT_TERMINAL_CONFIGURATION

  • Updated2024-05-08
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NIRFSG_ATTR_IQ_OUT_PORT_TERMINAL_CONFIGURATION

Numeric Value Data
type
Access Coercion High Level Functions
1150146 ViInt32 R/W None None

Description

Specifies whether to use the I/Q OUT port for differential configuration or single-ended configuration. If you set this attribute to NIRFSG_VAL_SINGLE_ENDED, you must terminate the negative I and Q output connectors with a 50 Ohm termination.

If you set this attribute to NIRFSG_VAL_SINGLE_ENDED, the positive I and Q connectors generate the resulting waveform. If you set this attribute to NIRFSG_VAL_DIFFERENTIAL, both the positive and negative I and Q connectors generate the resulting waveform.

To use this attribute, you must use the channelName parameter of the niRFSG_SetAttributeViInt32 function to specify the name of the channel you are configuring. For the PXIe-5645, you can configure the I and Q channels by using I or Q as the channel string, or set the channel string to "" (empty string) to configure both channels. For the PXIe-5820, the only valid value for the channel string is "" (empty string).

Note  For the PXIe-5645, this attribute is ignored if you are using the RF ports.

To set this attribute, the NI-RFSG device must be in the Configuration state.

Defined Values:

NIRFSG_VAL_DIFFERENTIALSets the terminal configuration to differential.
NIRFSG_VAL_SINGLE_ENDEDSets the terminal configuration to single-ended.

Default Value: NIRFSG_VAL_DIFFERENTIAL

PXIe-5820: The only valid value for this attribute is NIRFSG_VAL_DIFFERENTIAL.

Supported Devices: PXIe-5645, PXIe-5820

Related Topics

Differential and Single-Ended Operation (I/O Interface)

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