DAQ Control

How to control the analog and digital lines of the X-Band IF system manually.

Please make sure the control software for the DAQ interface is installed. If you haven’t done so, you can download it here.

Connecting to the DAQ Interface

To connect to the DAQ interface follow these steps:

  1. Make sure the X-Band IF USB interface is connected to the host computer.
  2. Start Kipling
  3. In the GUI click the green USB button (see figure above, left). The USB button will turn red, indicating that Kipling is connected to the DAQ interface (see figure above, right).

Digital Input/Output Control

To control the digital input/output lines click on the menu item Dashboard (see figure above). Each of the lines can be configured as an input or output by selecting the control from the drop-down menu. If the line is configured as an input the indicator to the left will show whether the line is logic high or low. If the line is configured as an output, the status can be changed by selecting the desired status from the drop-down menu.

Below is a list of the different digital channels used by the X-Band IF system.

Pulse Forming Unit (PFU)

Bit Name Function
CIO0 AWG LO select for PFU. 0 - Internal synthesizer (LO1), 1 - AUX LO, auxillary LO input on back panel

Receiver (RCVR)

Bit Name Function
CIO1 Enable/Disable video amplifiers. 0 - disabled, 1 - enabled
FIO4 Microwave signal amplifier, 0 - disabled, 1 - enabled +20 dB gain

Analog Output Control

The value of the varios analog outputs can be controlled from the Register Matrix panel. The values for TDAC0 - TDAC3 can be set between -10 and +10 V, with a resolution of 16 bit.

Below is a list of the different analog channels used by the X-Band IF system.

Receiver

Bit Name Function
TDAC0 Video amplifier gain control (I channel), value from -10 to 10 V, -10 V - 30 dB gain, 10 V - 65 dB gain
TDAC1 Video amplifier gain control (Q channel), value from -10 to 10 V, -10 V - 30 dB gain, 10 V - 65 dB gain
TDAC2 LO level receiver, value from -10 to 10 V, -10 V - 0 attenuation, full power on LO of IQ mixer (RCVR), 10 V - 30 dB attenuation, lowest power on LO of IQ mixer (RCVR)

Miscellaneous Other Controls

The X-Band IF system has several spare digital and analog input and output lines. These lines can be configured by the user.

Back Panel EXT Connector (9 pin sub-D)

Bit Name Pin Number
sub-D
Function
EIO0 1 DAQ bit EIO0, can be configured as input and output, TTL level
EIO2 2 DAQ bit EIO2, can be configured as input and output, TTL level
EIO4 3 DAQ bit EIO4, can be configured as input and output, TTL level
EIO6 4 DAQ bit EIO6, can be configured as input and output, TTL level
GND 5 Systems GND
EIO1 6 DAQ bit EIO1, can be configured as input and output, TTL level
EIO3 7 DAQ bit EIO3, can be configured as input and output, TTL level
EIO5 8 DAQ bit EIO5, can be configured as input and output, TTL level
EIO7 9 DAQ bit EIO7, can be configured as input and output, TTL level

Back Panel DIO Connector (9 pin sub-D)

Bit Name Pin Number
sub-D
Function
MIO0 1 DAQ bit MIO 0, can be configured as input and output (TTL level)
MIO2 2 DAQ bit MIO 2, can be configured as input and output (TTL level)
DAC1 3 DAQ bit DAC 1. This is an analog output. The value can be changed between 0 and 5 V. The output is controlled from the Dashboard menu
AIN1 4 DAQ bit EIO 6, can be configured as input and output (TTL level)
GND 5 Systems GND
MIO1 6 DAQ bit MIO 1, can be configured as input and output (TTL level)
IO4 7 TDAC 3, values (set in software) -10 to 10 V, output 0 to 10 V
AIN0 8 DAQ bit EIO 5, can be configured as input and output (TTL level)
VS 9 5 V supply voltage

Back Panel VCA Connector (SMA)

Bit Name Function
DAC0 VCA control (back panel). This is an analog output. The value can be changed between 0 and 5 V. The output is controlled from the Dashboard menu, value 0 to 5 V
Last modified October 10, 2023: Adding screen shots (8e1a03b)