Description
The GX3722 is a user configurable, FPGA-based, 3U PXI card which employs a multi-function, analog / digital, I/O daughter board. The module offers multiple analog and digital source / measure capability. The daughter board interfaces to the GX3700 FPGA baseboard which employs the Altera Stratix III FPGA.
Features
The GX3722 offers the following capabilities:
- 4 channel, programmable square wave generator
- 4 channel, time interval counter
- 4 differential TTL outputs
- 4 differential TTL inputs
- 2 channel function generator
- 2 channel digitizer
- 3 open collector outputs
The square wave generators can support frequencies up to 8 MHz and feature high bandwidth signal performance. The time interval analyzers employ high bandwidth comparators and can operate to 10 MHz. The function generators provide sinewave and arbitrary waveform capability. Maximum frequency of operation is 20 KHz. The two channel, 12 bit, 10 MS/s digitizer includes signal conditioning.
The module has access to all of the PXI bus resources including the PXI 10 MHz clock, the local bus, and the PXI triggers; allowing the user to create a custom instrument which incorporates all PXI bus resources. Control and access to the FPGA is provided via the GX3722's driver which includes the ability to download compiled FPGA code as well as perform register reads and writes.
Programming and Software
The board is supplied with the GxFPGA library, a software package that includes a virtual instrument panel, and a Windows 32/64-bit DLL driver library and documentation. The virtual panel can be used to interactively program and control the instrument from a window that displays the instrument’s current settings and status. In addition, interface files are provided to support access to programming tools and languages such as
ATEasy, LabVIEW, LabVIEW/Real-Time, C/C++, Microsoft Visual Basic®, Delphi, and Pascal. An On-Line help file and PDF User's Guide provides documentation that includes instructions for installing, using and programming the board.
Applications
- Automatic Test Equipment (ATE)
- Custom interface emulation
- Custom instrumentation
GX3722 Series Specifications
| Digital I/O Channels |
|---|
| Logic Family | Differential TTL |
| Number of Channels | 4 input, 4 output |
| Differential Output | Common Mode Range: 2V typical, 3 V max
Differential Output Voltage: 2.25V typical, 100 ohm load
Output Current: ± 10 mA
Frequency: 100 KHz |
| Differential Input | Common Mode Range: ± 7V
Positive / Negative Threshold Voltage: 200 mV max
Frequency: 100 KHz |
| Square Wave Generator |
|---|
| Number of Channels | 4 |
| Frequency | 1 kHz to 8 MHz, programmable |
| Frequency Resolution | Integer Division of 80 MHz |
| Frequency Accuracy | ±1% of programmed value |
| Output Rise / Fall Time | 0.5 V/ns |
| Output Voltage | Ch. 1: 9 Vpp, ±5%, 50 Ohm load
Ch. 2, 3: 9 Vpp, ±5%, 75 Ohm load
Ch. 4: 3 Vpp, ±5%, 75 Ohm load |
| Source Impedance | Ch. 1: 50 Ohm
Ch. 2-4: 75 Ohm |
| Time Interval Measurement |
|---|
| Number of Channels | 4 |
| Max Input Frequency | 10 MHz |
| Time Interval Measurement Resolution | 5 ns |
| Time Interval Measurement Accuracy | 10 ns |
| Ch. 1 Input Threshold | 0.15V |
| Ch.2-4 input Threshold | 0.3V |
| Maximum Input Voltage | 10 Vpp |
| Input Impedance | Ch. 1: 50 Ohm
Ch. 2-4: 75 Ohm |
| Digitzer |
|---|
| Number of Channels | 2 |
| Resolution | 12 bits |
| Input Voltage Range | 24 Vpp |
| Analog BW | 5 MHz |
| Input Impedance | Selectable
75 Ohm or 28 kOhm |
| Coupling | DC |
| Max Sampling Rate | 10 MS/s |
| Sampling Rate | Programmable (S/S):
10 M, 1 M, 100 k, 10 k, 1 k |
| Sampling Rate Accuracy | ±1% |
| Waveform Generator |
|---|
| Number of Channels | 2 |
| Waveforms | Sine, Triangle, Sawtooth, Square, Arbitrary |
| Vertical Resolution | 12 bits |
| Sampling Rate (max.) | CH1: 10 MHz
CH2: 5 MHz |
| Sampling Rate Resolution | 12.5 nS |
| Sampling Rate Range | 12.5 nS * N, N = 8 to 232 |
| Time Base | PXI 10 MHz |
| Output Voltage | 5 Vpp, max, with 0 V offset, 50 Ohm load |
| Output Impedance | 50 Ohm |
| Output Current | 200 mA per channel (max) |
| Open Drain Channels |
|---|
| Number of Channels | 3 |
| Maximum Drain / Source Voltage | 50 V |
| Nominal Drain Current | 2.0 A |
| Drain Current Disable Threshold | >2.5 A |
| Timing Sources |
|---|
| PXI Bus | 10 MHz |
| Internal | 80 MHz oscillator, ±20 ppm |
| FPGA and Memory |
|---|
| FPGA Type | Altera Stratix III, EP3SL50F780 |
| Number of PLLs | Four |
| Logic Elements | 47.5 k |
| Internal Memory | 1.836 Mb |
| On-Board Memory | 256 K x 32 SSRAM |
| On-Board Flash | 16 MB |
|| Cable ID |
| Digital I/O Inputs | 3 bits |
| Logic Level | TTL |
| Power |
|---|
| 3.3 VDC | 2.0 A max. |
| 5 VDC | 1.0 A max. |
| +12 VDC | 600 mA max. |
| -12 VDC | 400 mA max. |
| Environmental and Physical |
|---|
| Operating Temperature Range | GX3722: 0°C to +50°C
GX3722-M: 0°C to +83°C; contact factory for extended temperature range specifications |
| Storage Temperature | -55°C to +85°C |
| Relative Humidity (operating) | 5% to 85%, temperature range 0°C to 60°C
5% to 60% for operating temperatures above 60°C |
| Altitude (operating) | 4600 meters (max) |
| Connector | 62 pin, D-sub female |
| Size | 3U PXI, hybrid slot compatible |
| Weight | 200 g |
Note: Specifications are subject to change without notice.
Downloads for GX3722 Series
Datasheet
GX3722DS.pdf
Feb 17, 2023
version: A
192.27 KB
Setup/Package
GxFpga.exe
Feb 20, 2024
version: 2.4.1.0
49.14 MB
Most recent Setup/Package
This Setup / Package file contains all necessary files (including user's guide, help, etc).
Expand
to view And download individual files included in the setup.
Manual
GX3700UG.pdf
Apr 2, 2024
version: 2.4.2.0
6.13 MB
On-Line Help
GXFPGA.chm
Apr 2, 2024
version: 2.4.2.0
10.62 MB
Download our PXI Catalog
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