ATLANTIC CITY, N.J. -- Teradyne Inc. introduced a new software tool at the International Test Conference here that allows simultaneous viewing of design and test simulation signals for mixed-signal ICs.
The DataScope program, part of Teradyne's VX product line, provides one focused display for viewing the full range of mixed-signal data and signals needed to debug system-on-chip (SOC) test packages before first silicon. Using it in conjunction with VX test simulation software, test and design engineers can examine all simulated signals and data generated during a test simulation, Teradyne said.
"Test simulation provides the ability to do real pre-silicon debug," said Bruce Webster, marketing manager for the VX product group at Boston-based Teradyne. "DataScope provides a key element in this debugging process because it gives the engineer the power to see what is actually happening in more detail."
The new DataScope does more than just allow engineers to view signals, he said. "The ability to view device signals over-laid on tester data takes this another step," said Webster. "This intelligent visualization provided by DataScope gives test engineers a capability that is not possible on a real test system."
DataScope's multi-trace display can show all of the signals generated during a simulated test, including DC sources and meters, AC waveform generators, and digitizers, as well as full digital stimulus, expect and device response data. All data and signals are correctly aligned against a single common time-base, and individual traces can be fully customized. The full test-simulation data set can be saved and viewed later without the need to re-simulate.
Teradyne's VX software controls simulation of the test package by running the same test program that will be used on the test system during silicon characterization and manufacturing test. Debugging the entire test package therefore improves time-to-market by ensuring the test program is working as soon as first silicon appears.
Teradyne has won recent acceptance of VX systems by major semiconductor manufacturers such as Analog Devices Inc. and Texas Instruments Inc. (see Sept. 24 story).