Description
The GT5920 100MHz frequency multiplier module increases the upper test rate limit to 100 MHz. The increase in test rate is achieved by interleaving a single I/O pin into two parallel memory locations. The GT5920 provides 16 Input or Output pins (in groups of 8 pins). The GT5920 is a GT5150 and GT5900 plug-in unit.
Architecture
The GT5920 frequency multiplier module converts the 32, 50 MHz I/O channels into 16, 100 MHz I/O channels. The memory MUX/interleave logic is designed into a single high-speed programmable logic device, thereby minimizing propagation delays. Concurrent high and low word memory locations are interleaved using opposite phases of the programmable output clock. Each I/O pin has a corresponding termination that can be globally enabled or disabled through software control. |
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Programming
The GT5920 Module is controlled via the host GT5150 or GT5900. Programmable functions include:
- Signal termination enable/disable
- I/O data direction
- Tri-state control
Applications
- Up to 100 MHz test rate applications
- Hard drive testing
- IC testing
- Bus emulation
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