The GX5960 digital subsystem offers real-time digital stimulus, record, or expect data modes on all I/O channels and 32 high voltage utility I/O signals which are located on the GX5961 board. Vector memory depth is 256K words. Each channel can be configured as an input or output on a per cycle basis. Six drive data formats are supported: NR, R1, R0, RZ, RC, and Complement Surround – providing flexibility to create a variety of bus cycles and waveforms to test board and box level products.
The GX5961 provides timing, input / output synchronization signals, and sequencing as well as 16 I/O channels and 32 high voltage open collector utility I/O channels. Additional channels can be added to the system by installing one or more, GX5964 boards which are interconnected via the PXI local and trigger busses. The GX5961 offers a flexible clock system which allows the module to operate as a timing master to the UUT or be slaved to the UUT’s time base or some other external clock. All pin electronic resources are independent on a per channel basis – offering the user complete flexibility when programming drive / sense levels, source / sink currents, slew rate, skew, or PMU functions. The PMU can operate in the force voltage / measure current or force current / measure voltage mode and is useful for measuring a UUT’s DC characteristics. In addition, each I/O channel includes an analog bus relay, which allows each channel to support hybrid channel (digital or analog) measurement capabilities. For analog stimulus / response measurements, the analog bus can be connected to external resources via a dedicated analog bus connector located on the front panel of the module.
The following provides a summary of the GX5960 series' main features:
● Cycle based, 50 MHz dynamic digital subsystem with high performance timing generator.
● High voltage pin electronics with per channel programmability.
● Per channel parametric measurement unit (PMU).
● Analog bus access for each I/O channel.
● Dual level drive / sense, and programmable load on a per channel basis.
● 256 timing sets with 4 phases and 4 windows0 - 64 us phase and window programming range with 1ns resolution.
● Supports up to 528 bi-directional I/O channels.
● 256K of vector memory.
● Comprehensive software tool set supports CASS legacy programs and importing of IEEE - 1445 compliant vector files.
● 6U PXI Instrument.